Q_Id int64 337 49.3M | CreationDate stringlengths 23 23 | Users Score int64 -42 1.15k | Other int64 0 1 | Python Basics and Environment int64 0 1 | System Administration and DevOps int64 0 1 | Tags stringlengths 6 105 | A_Id int64 518 72.5M | AnswerCount int64 1 64 | is_accepted bool 2
classes | Web Development int64 0 1 | GUI and Desktop Applications int64 0 1 | Answer stringlengths 6 11.6k | Available Count int64 1 31 | Q_Score int64 0 6.79k | Data Science and Machine Learning int64 0 1 | Question stringlengths 15 29k | Title stringlengths 11 150 | Score float64 -1 1.2 | Database and SQL int64 0 1 | Networking and APIs int64 0 1 | ViewCount int64 8 6.81M |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
25,104,606 | 2014-08-03T12:25:00.000 | 0 | 0 | 0 | 1 | python,linux | 25,104,864 | 1 | false | 0 | 0 | There is no existing solution to my knowledge. But:
There is the inotify API, but that only gives out notifications of what just happened, i.e. you don't have any means to influence the result.
If that is an absolutely necessary requirement, intercepting operations on a filesystem level is the only universal choice, h... | 1 | 0 | 0 | folder watcher functions in a way that after a file comes into a folder it does something ( it reacts ). Is there a method , such that, before a file enters the folder, a check is made, if it's a successful check then only the file enters folder, otherwise it does not. | a proactive folder watcher in Linux | 0 | 0 | 0 | 74 |
25,106,897 | 2014-08-03T16:52:00.000 | -1 | 0 | 0 | 0 | python,openpyxl | 47,234,993 | 2 | false | 0 | 0 | As A-Palgy said you have to add
worksheet.sheet_view.rigtToleft = True
but first, you have to enable that feature in the views.py file in this path:
C:\python36\Lib\site-packages\openpyxl\worksheet\views.py
and edit the line :
rightToLeft = Bool(allow_none=True)
to
rightToLeft = Bool(allow_none=False) | 1 | 4 | 0 | I was wondering how to adjust display left to right / right to left with openpyxl or if its even possible.
haven't really found anything in the documantation, maybe im blind.
thanks in advance :) | Python Openpyxl display left to right | -0.099668 | 0 | 0 | 930 |
25,109,746 | 2014-08-03T22:30:00.000 | 1 | 0 | 0 | 1 | python,json,google-app-engine,rest,google-cloud-datastore | 25,110,135 | 2 | false | 1 | 0 | This is a really good question, one that I've been asked in interviews, seen pop up in a lot of different situations as well. Your system essentially consists of two things:
Savings (or writing) models to the data store
Reading from the data store.
From my experience of this problem, when you view these two things di... | 1 | 2 | 0 | We're designing a system that will take thousands of rows at a time and send them via JSON to a REST API built on Google App Engine. Typically 3-300KB of data but let's say in extreme cases a few MB.
The REST API app will then adapt this data to models on the server and save them to the Datastore. Are we likely to (eve... | Google App Engine, Datastore and Task Queues, Performance Bottlenecks? | 0.099668 | 0 | 0 | 158 |
25,110,089 | 2014-08-03T23:40:00.000 | 0 | 0 | 0 | 0 | python,csv,organization,pytables | 25,122,607 | 1 | false | 0 | 0 | First of all, I am a big fan of Pytables, because it helped me manage huge data files (20GB or more per file), which I think is where Pytables plays out its strong points (fast access, built-in querying etc.). If the system is also used for archiving, the compression capabilities of HDF5 will reduce space requirements ... | 1 | 0 | 1 | I'm currently in the process of trying to redesign the general workflow of my lab, and am coming up against a conceptual roadblock that is largely due to my general lack of knowledge in this subject.
Our data currently is organized in a typical file system structure along the lines of:
Date\Cell #\Sweep #
where for a... | Benefits of Pytables / databases over file system for data organization? | 0 | 1 | 0 | 332 |
25,110,635 | 2014-08-04T01:23:00.000 | 1 | 1 | 0 | 1 | python,linux,unix,cron,raspberry-pi | 25,110,706 | 2 | true | 0 | 0 | It looks like you may have a stray . in there that would likely cause an error in the command chain.
Try this:
cd usr/local/sbin/cronjobs && virtualenv/secret_ciphers/bin/activate
&& cd csgostatsbot && python3 CSGO_STATS_BOT_TASK.py && deactivate
Assuming that the virtualenv directory is in the cronjobs directory.
... | 1 | 0 | 0 | I am trying to run a cron script in python 3 so I had to setup a virtual environment (if there is an easier way, please let me know) and in order to run the script I need to be in the script's parent folder as it writes to text files there. So here is the long string of commands I have come up with and it works in cons... | how to write a multi-command cronjob on a raspberry pi or any other unix system | 1.2 | 0 | 0 | 822 |
25,112,648 | 2014-08-04T06:08:00.000 | 0 | 0 | 0 | 0 | postgresql,python-2.7,amazon-web-services,psycopg2,amazon-vpc | 25,115,502 | 1 | false | 0 | 0 | Point your python code to the same address and port you're using for the tunnelling.
If you're not sure check the pgAdmin destination in the configuration and just copy it. | 1 | 2 | 0 | My RDS is in a VPC, so it has a private IP address. I can connect my RDS database instance from my local computer with pgAdmin using SSH tunneling via EC2 Elastic IP.
Now I want to connect to the database instance in my code in python. How can I do that? | AWS - Connect to RDS via EC2 tunnel | 0 | 1 | 1 | 667 |
25,112,802 | 2014-08-04T06:21:00.000 | 0 | 0 | 1 | 0 | python,sublimetext2 | 25,138,882 | 1 | false | 0 | 0 | You can accept user input in Sublime Text with SublimeREPL module. Install it via package control. | 1 | 0 | 0 | I have been learning python since last week weeks. I am using sublime text2 editor.
I have a simple file which prints some small text. How do I run this?
I have tried using ctrl+B but it only builds the file. How can I execute it? | Execute a python script from sublime text 2 | 0 | 0 | 0 | 115 |
25,118,283 | 2014-08-04T12:04:00.000 | 0 | 0 | 0 | 1 | java,python,eclipse,plugins | 25,133,261 | 2 | false | 1 | 0 | I solved this problem:
There was no issue with either eclipse or with PyDev. It was about the Java version I had. PyDev works with JDK 7, but I had JDK 6. Due to this even after I copied the PyDev to droppins, nothing was shown up in Preferences. Once I used JDK 7, its working.
Thanks, | 1 | 0 | 0 | I am on an assignment to work with Jython. I tried to install PyDev plugin to my eclipse ( Kepler service release 2 on Linux 64 bit machine )manually (dev machine doesnot have internet connection). But when I do manually by downloading .zip file and adding it as following:
Help-> Install new software ->Add -> Archie... | Adding PyDev eclipse pulgin manually | 0 | 0 | 0 | 347 |
25,120,159 | 2014-08-04T13:44:00.000 | 2 | 0 | 1 | 0 | python,sockets,thread-safety | 25,122,539 | 1 | true | 0 | 0 | The socket API is thread safe (at least on linux and windows) to the extent that the system won't crash and the data will all be transferred. Its just that data sent among threads may be interleaved and there is no guarantee what any given thread will receive. But the minumum unit of transfer is 1 byte so if you have a... | 1 | 0 | 0 | as i have found on thread safety of socket, it was not,
But how about each thread accesses a socket to write or read only one byte at a once.(1 byte means 1 character)
is it also un-safe?
i am coding in python. | is socket thread safe in writing or reading a 1byte? | 1.2 | 0 | 0 | 356 |
25,120,761 | 2014-08-04T14:13:00.000 | 8 | 0 | 0 | 0 | python,sockets,python-2.7 | 25,121,548 | 3 | false | 0 | 0 | send has extra information that recv doesn't: how much data there is to send. If you have 100 bytes of data to send, sendall can objectively determine if fewer than 100 bytes were sent by the first call to send, and continually send data until all 100 bytes are sent.
When you try to read 1024 bytes, but only get 512 ba... | 2 | 17 | 0 | When using recv() method, sometimes we can't receive as much data as we want, just like using send(). But we can use sendall() to solve the problem of sending data, how about receiving data? Why there is no such recvall() method? | why does python socket library not include recvall() method like sendall()? | 1 | 0 | 1 | 16,283 |
25,120,761 | 2014-08-04T14:13:00.000 | 0 | 0 | 0 | 0 | python,sockets,python-2.7 | 25,121,894 | 3 | false | 0 | 0 | Because recvall is fundamentally confusing: your assumption was that it would read exactly-N bytes, but I would have thought it would completely exhaust the stream, based on the name.
An operation that completely exhausts the stream is a dangerous API for a bunch of reasons, and the ambiguity in naming makes this a pre... | 2 | 17 | 0 | When using recv() method, sometimes we can't receive as much data as we want, just like using send(). But we can use sendall() to solve the problem of sending data, how about receiving data? Why there is no such recvall() method? | why does python socket library not include recvall() method like sendall()? | 0 | 0 | 1 | 16,283 |
25,122,947 | 2014-08-04T16:07:00.000 | -1 | 0 | 1 | 0 | python,database,computer-vision,pickle | 25,288,486 | 1 | true | 0 | 0 | Use a database because it allows you to query faster. I've done this before. I would suggest against using cPickle. What specific implementation are you using? | 1 | 1 | 1 | I have previously saved a dictionary which maps image_name -> list of feature vectors, with the file being ~32 Gb. I have been using cPickle to load the dictionary in, but since I only have 8 GB of RAM, this process takes forever. Someone suggested using a database to store all the info, and reading from that, but woul... | Using Pickle vs database for loading large amount of data? | 1.2 | 0 | 0 | 811 |
25,125,447 | 2014-08-04T18:44:00.000 | 0 | 0 | 1 | 0 | python,sockets,flask | 25,129,481 | 1 | false | 0 | 0 | You probably need SO_REUSEPORT and SO_REUSEADDR socket options set? That error means that you tried to bind a port before the previous binding timed out after a close. | 1 | 1 | 0 | I'm on OS-X, using the flask library to make a small api.
Usually when I terminate the process with Ctrl-C it used to just raise KeyboardInterrupt, but now it will exit with socket.error: [Errno 48] Address already in use instead. After that, trying to restart the program throws the same error. This used to happen occ... | Ctrl-C not properly closing multi-threaded python (+ flask) program | 0 | 0 | 0 | 1,193 |
25,125,532 | 2014-08-04T18:49:00.000 | 1 | 0 | 1 | 0 | python,installation,iexpress | 31,952,116 | 1 | false | 0 | 0 | iexpress doesn't let you include folders, but you can include a batch file, which may create folders and copy files to the respective folder. To run a batch file, specify cmd /c IncludedBatchFile.bat under Install Program in the iexpress wizard. | 1 | 0 | 0 | ok so i've used iexpress a few times without a problem. i created a nice little program for my buddies and i and i'm now in the process of creating a installation package for it. i like iexpress cause it makes it easy and has the license agreement window n whatnot.
ok so program is made. using windows & iexpress i att... | iexpress assistance for my program | 0.197375 | 0 | 0 | 535 |
25,125,959 | 2014-08-04T19:19:00.000 | 4 | 0 | 0 | 0 | python,django,rest,django-rest-framework | 25,138,732 | 3 | false | 1 | 0 | Why there is generics if ModelViewSet gives same abilities and more?
Let me first rephrase the question a little more explicitly for you...
"Why are there Generic Views, when there are also Generic ViewSets"
Which really just comes down to a question of why REST framework supports both views and viewsets. Answer - Vie... | 1 | 12 | 0 | I use generics and plain urls for my REST API, but now I stuck with problem: I want custom actions, simple views to make some things with my models, like "run", "publish", etc.
ViewSet gives action decorator to create custom actions, but only in ViewSets, also, there is stepial routers, which gives us ability to simpli... | Django REST Framework: Generics or ModelViewSets? | 0.26052 | 0 | 0 | 14,838 |
25,126,843 | 2014-08-04T20:16:00.000 | 1 | 0 | 1 | 0 | python,multiprocessing,python-requests | 25,128,782 | 2 | false | 0 | 0 | Figure out what your bottleneck is going to be before designing a solution;
The first thing to look at is probably network bandwith. If one stream can saturate your network, downloading more than one toghether won't be faster.
The second thing is disk write throughput. Can your disk and OS handle all these concurrent w... | 1 | 0 | 0 | I would like to be able to use the multiprocessing library in python to continuously stream from multiple live web apis with python-request (Using the Stream option). Would this be possible on a dual-core Linux system or am I better off running them as single programs in multiple screen sessions?
Would I also want to u... | Is it possible to process X amount of streaming API streams with multiprocessing? | 0.099668 | 0 | 1 | 218 |
25,129,311 | 2014-08-04T23:58:00.000 | 1 | 0 | 0 | 0 | python,c++,user-interface,jvm,pyc | 25,132,319 | 1 | true | 0 | 1 | All GUI toolkits on Python are a wrapper around C/C++ code. On Java there a some "pure" Java toolkits like Swing, but a the lowest level they depend on C code to do the drawing and handle user input. There's no special support for things like graphics in the Java VM.
As for how the GUI gets rendered at the lowest level... | 1 | 0 | 0 | So I have been doing a lot of reading about execution environments (Python's, JVM...) and I am starting to implement one on my own. It is a register-based environment written in C. I have a basic byte code format defined and the execution is going pretty smooth so far. My question is how does VEs render GUIs. In a more... | How do virtual machines render GUI? | 1.2 | 0 | 0 | 357 |
25,130,345 | 2014-08-05T02:34:00.000 | 3 | 1 | 1 | 0 | python,private | 25,130,467 | 5 | true | 0 | 0 | You can change the name of the the correctAnswer attribute in the code that you overwrite the tester with. This will instantly break all solutions that rely on the name of correctAnswer.
Furthermore, you could run both versions of the tester and diff the outputs. If there is a difference, then their code relies on the ... | 1 | 4 | 0 | I've read a number of SO threads about why Python doesn't have truly private variables, and I understand it for most applications.
Here's my problem: I'm creating a class project. In this class project, students design an agent that takes a multiple choice test. We want to be able to grade the agents' answers immediate... | Recreating "private" class variables in Python | 1.2 | 0 | 0 | 120 |
25,138,508 | 2014-08-05T12:11:00.000 | 0 | 0 | 0 | 0 | python,image,3d,transform | 25,142,706 | 2 | false | 0 | 0 | Firstly, all lines in 3d correspond to an equation; secondly, all lines in 3d that lie on a particular plane for part of their length correspond to equations that belong to a set of linear equations that share certain features, which you would need to determine. The first thing you should do is identify the four corner... | 1 | 0 | 1 | I used micro CT (it generates a kind of 3D image object) to evaluate my samples which were shaped like a cone. However the main surface which should be flat can not always be placed parallel to the surface of image stacks. To perform the transform, first of all, I have to find a way to identify the flat surface. Theref... | How to check a random 3d object surface if is flat in python | 0 | 0 | 0 | 435 |
25,139,041 | 2014-08-05T12:38:00.000 | 0 | 0 | 1 | 0 | python,google-app-engine,google-cloud-datastore,app-engine-ndb | 25,140,245 | 1 | false | 1 | 0 | There's probably a few ways to go about this, and using Google Cloud SQL would probably make your life easier for this. What you could do though is add a BooleanProperty to your entity types for example, named 'New', that would be set to 'True' by default. You would need to create an algorithm that would check through ... | 1 | 0 | 0 | So I'm making productivity app for myself and ppl around me. There will be a lots of different stuff related to different type groups or individual persons for different types of reasons.
Is there some best practice approach, algorythm or guidelines to do this properly that I should know before I screw everything up?
I... | best practice for tracking new/seen items | 0 | 0 | 0 | 60 |
25,143,105 | 2014-08-05T15:49:00.000 | 1 | 0 | 0 | 0 | python,apache,flask,wsgi | 25,143,417 | 1 | true | 1 | 0 | The WSGIApplicationGroup directive may be what you're looking for as long as you have the wsgi app running in daemon mode (otherwise I believe apache's default behavior is to use prefork which spins up a process to handle each individual request):
The WSGIApplicationGroup directive can be used to specify which applica... | 1 | 1 | 0 | I'm using wsgi apache and flask to run my application. I'm use from yourapplication import app as application to start my application. That works so far fine. The problem is, with every request a new instance of my application is created. That leads to the unfortunate situation that my flask application creates a new d... | start only one flask instance using apache + wsgi | 1.2 | 1 | 0 | 1,457 |
25,143,621 | 2014-08-05T16:14:00.000 | 2 | 0 | 0 | 1 | python,django,python-2.7 | 25,291,353 | 1 | true | 1 | 0 | Okay, so to reiterate my last post.
There was a call to a Django service that was failing on application startup. No error was thrown, instead it was absorbed by Sentry. Those who were already using the VM on their local machines had worked around the issue.
The issue was identified by importing ipdb and calling its se... | 1 | 2 | 0 | I'm running a vagrant box on Mac OS X. The VM is running Ubuntu 12.04, with Python 2.7 and Django 1.4.5. When I start up manage.py, I call it like this:
./manage.py runserver 0.0.0.0:8000
And if I visit http://127.0.0.1:8000 from within the VM, the text browsers I've tried report that the HTTP request has been sent an... | Django manage.py runserver fails to respond | 1.2 | 0 | 0 | 2,089 |
25,145,552 | 2014-08-05T18:09:00.000 | -2 | 0 | 0 | 0 | python,lucene,nlp,scikit-learn,tf-idf | 67,782,295 | 4 | false | 0 | 0 | The lengths of the documents The number of terms in common Whether the terms are common or unusual How many times each term appears | 1 | 42 | 1 | I have a corpus which has around 8 million news articles, I need to get the TFIDF representation of them as a sparse matrix. I have been able to do that using scikit-learn for relatively lower number of samples, but I believe it can't be used for such a huge dataset as it loads the input matrix into memory first and th... | TFIDF for Large Dataset | -0.099668 | 0 | 0 | 28,481 |
25,147,323 | 2014-08-05T20:02:00.000 | 0 | 0 | 0 | 0 | android,python,ios,parse-platform,kivy | 25,147,496 | 3 | false | 1 | 1 | The answer is essentially that you must simply save the data somewhere. The details will depend on your requirements, and aren't specific to kivy - you can look up normal android or python practices.
I'm not sure exactly what android guarantees about permissions, but storing stuff in your app directory (on the main par... | 1 | 3 | 0 | I am working on a Kivy app for iOS and Android and need help with keeping the user persistently logged in, even after the app is closed or killed. I am using Parse to store user credentials.
I've already added an on_pause method to the App class, but this only keeps the user logged in if the app is closed but not kille... | Saving login screen username and password for Kivy app | 0 | 0 | 0 | 5,234 |
25,148,418 | 2014-08-05T21:13:00.000 | 0 | 0 | 1 | 0 | python,text-analysis | 25,149,261 | 4 | false | 0 | 0 | If you can post the way you are doing it or thinking of doing it with R, I suspect someone could offer some suggestions as to how to do it with Python efficiently. For example, you can make a numpy array of strings and use functions in the numpy.char module to do vectorized operations over strings if you prefer that ... | 2 | 0 | 0 | I'm looking for a more efficient way of loading text data into Python, instead of using .readlines(), then manually parsing through the data. My goal here is to run different models on the text.
My classifiers are People's names, which are listed before the text of their... let's call them 'Reviews'... which are separ... | Reading text file into python | 0 | 0 | 0 | 752 |
25,148,418 | 2014-08-05T21:13:00.000 | 0 | 0 | 1 | 0 | python,text-analysis | 25,148,491 | 4 | false | 0 | 0 | If it's a big amount of data to read at once you can iterate manually via readline() and then parse it on the way dumping unnecessary entries. | 2 | 0 | 0 | I'm looking for a more efficient way of loading text data into Python, instead of using .readlines(), then manually parsing through the data. My goal here is to run different models on the text.
My classifiers are People's names, which are listed before the text of their... let's call them 'Reviews'... which are separ... | Reading text file into python | 0 | 0 | 0 | 752 |
25,149,761 | 2014-08-05T23:08:00.000 | 0 | 0 | 1 | 1 | python | 25,150,279 | 3 | false | 0 | 0 | The PYTHONPATH environmenbt variable is not used to select the path of the Python executable - which executable is selected depends, as in all other cases, on the shell's PATH environment variable. PYTHONPATH is used to augment the search list of directories (sys.path in Python) in which Python will look for modules to... | 2 | 0 | 0 | I have a virtualenv in a structure like this:
venv/
src/
project_files
I want to run a makefile (which calls out to Python) in the project_files, but I want to run it from a virtual environment. Because of the way my deployment orchestration works, I can't simply do a source venv/bin/activate.
Instead, I've trie... | Using PYTHONPATH to use a virtualenv | 0 | 0 | 0 | 103 |
25,149,761 | 2014-08-05T23:08:00.000 | 0 | 0 | 1 | 1 | python | 25,150,471 | 3 | false | 0 | 0 | You can actually just call the Python interpreter in your virtual environment. So, in your Makefile, instead of calling python, call venv/bin/python. | 2 | 0 | 0 | I have a virtualenv in a structure like this:
venv/
src/
project_files
I want to run a makefile (which calls out to Python) in the project_files, but I want to run it from a virtual environment. Because of the way my deployment orchestration works, I can't simply do a source venv/bin/activate.
Instead, I've trie... | Using PYTHONPATH to use a virtualenv | 0 | 0 | 0 | 103 |
25,152,287 | 2014-08-06T04:33:00.000 | 0 | 0 | 1 | 0 | python | 25,152,320 | 2 | false | 0 | 1 | If you're using Windows, you can create a shortcut. Or you can just put your .py file on your desktop.
If you want to make an .exe file I would suggest installing py2exe. I've compiled Tkinter Python scripts into .exes with py2exe many times. | 1 | 0 | 0 | I wrote a program in Python, then created a GUI using Tkinter. When I use programs on my computer (like Microsoft Word), I don't need to access the GUI from the command line I just click the application icon.
How do I put my program (the program itself is in the same .py file as the GUI) into an application icon that w... | how to create an icon for my python application | 0 | 0 | 0 | 2,183 |
25,156,170 | 2014-08-06T09:00:00.000 | 1 | 0 | 0 | 0 | javascript,jquery,python,html,mako | 25,156,421 | 1 | false | 1 | 0 | Ajax is the "right" way to do this.
In order to insert the values into your separate Javascript file dynamically, it can no longer be served as a static file. Beyond that, it adds an extra layer of problems with security and maintainability as you have to deal with string escaping, possible script injection, and having... | 1 | 2 | 0 | I have a dashboard I am working on, using Python cherrypy framework and Mako template language.
I had an html file for each of dashboard pages.
There, I used Mako to pass some data to html and inline Javascript.
For example, to display the names of some processes when I only had the list of ids, I passed a Python dict ... | Using Mako Template in Javascript | 0.197375 | 0 | 0 | 1,595 |
25,156,559 | 2014-08-06T09:19:00.000 | 0 | 0 | 0 | 0 | python,branch,history,revision,pysvn | 25,157,103 | 1 | true | 0 | 0 | Oh well, I found a way: I can create a list of log messages using the log command and loop through those messages. They are dictionaries containing all relevant information.. | 1 | 0 | 0 | I'm using PySVN to access the SVN API from a python script.
I can't seem to find a way to figure out what other revision numbers there are in a given branch.
I can determine the revision number of my working copy trunk, as well as the revision number of the latest change by using info and/or info2, but I would like to ... | Python PySVN - Branch revision history | 1.2 | 0 | 0 | 409 |
25,162,141 | 2014-08-06T13:50:00.000 | 3 | 0 | 1 | 1 | python,linux,python-module | 25,162,261 | 2 | false | 0 | 0 | You should install Python libraries with the Python package installer, pip.
Create a virtualenv with the Python version you want to use, activate it, and do pip install NetfilterQueue. You'll still need to install the system dependencies (eg libnetfilter-queue-dev in this case) with apt-get. | 1 | 3 | 0 | I have different python versions installed on my ubuntu machine. The default version is 2.7.
So when I install any new python module, for example using:
#apt-get install python-nfqueue
it will be istalled just for the default version (2.7)
How can I install the new modules for the other versions?
Is there a way to do i... | Install python module for non-default version on linux | 0.291313 | 0 | 0 | 2,428 |
25,164,837 | 2014-08-06T15:51:00.000 | 1 | 0 | 0 | 1 | python,bash | 25,164,957 | 3 | false | 0 | 0 | Yes, that is best and almost only way to pass data from python to bash.
Also your function can write to file, which would be read by bash script. | 1 | 0 | 0 | I am writing a dev ops kind of a bash script that is used for running an application in a local development environment under configuration as similar to production as possible. To eliminate duplicating some code/data which is already in a Python script, I would like my bash script to invoke a Python call to retrieve ... | How to pass collection data from Python to bash? | 0.066568 | 0 | 0 | 2,192 |
25,168,058 | 2014-08-06T18:55:00.000 | 0 | 0 | 0 | 0 | python,pandas,openpyxl,versions | 25,178,533 | 1 | false | 0 | 0 | The best thing would be to remove the version of openpyxl you installed and let Pandas take care. | 1 | 0 | 1 | My installed version of the python(2.7) module pandas (0.14.0) will not import. The message I receive is this:
UserWarning: Installed openpyxl is not supported at this time. Use >=1.6.1 and <2.0.0.
Here's the problem - I already have openpyxl version 1.8.6 installed so I can't figure out what the problem might be! Does... | Python pandas module openpxyl version issue | 0 | 1 | 0 | 114 |
25,169,506 | 2014-08-06T20:22:00.000 | 1 | 0 | 1 | 0 | python,pandas | 25,170,275 | 2 | false | 0 | 0 | Try to locate your pandas lib in /python*/lib/site-packages, add dir to your sys.path file. | 1 | 0 | 1 | I installed pandas using pip and get the following message "pip install pandas
Requirement already satisfied (use --upgrade to upgrade): pandas in /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages
Cleaning up..."
When I load up python and try to import pandas, it says module not found. Pleas... | error in import pandas after installing it using pip | 0.099668 | 0 | 0 | 1,176 |
25,170,016 | 2014-08-06T20:55:00.000 | 0 | 0 | 1 | 1 | python,virtualenv,tornado | 25,170,606 | 2 | false | 0 | 0 | Could it be that the virtualEnv is inheriting the global site-packages? I'm not sure if I added -no-site-packages when I set up the virtualEnv. Is there an easy way to address this setting now or to test this possibility?
no-global-site-packages.txt is present in the python2.7 directory
and
orig-prefix.txt contains a ... | 1 | 1 | 0 | I am running python-2.7 with virtualenv on a unix server to which I do not have root access. I updated the module tornado using pip install tornado --upgrade because installing ipython required tornado >= 3.1.0 but only version 2.4 was installed by default on the server. However, when I try to open ipython, it still co... | virtualenv not finding updated module | 0 | 0 | 0 | 466 |
25,171,044 | 2014-08-06T22:05:00.000 | 2 | 0 | 0 | 0 | python,sockets,python-3.x,tcp | 25,171,183 | 1 | true | 0 | 0 | No. Unlike UDP sockets, TCP sockets work are connection-oriented. Whatever data is written into a socket, "magically" appears to come out of the socket at the other end as a stream of data. For that, both sockets maintain a virtual connection, a state. Among other things, the state defines both endpoints of the conntec... | 1 | 1 | 0 | I'm trying to write a server for a chat program. I want the server to have a tcp connection with every chat user. Is there way for the server to have multiple tcp connections at the same time without creating a socket for every connection? And if yes, how? | Multiple TCP connections in python | 1.2 | 0 | 1 | 1,292 |
25,172,220 | 2014-08-07T00:03:00.000 | 1 | 0 | 0 | 0 | python,pyqt | 25,172,853 | 7 | true | 0 | 1 | You can use the removeItem() method to remove an item from the QComboBox.
void QComboBox::removeItem ( int index )
Removes the item at the given index from the combobox. This will update the current index if the index is removed.
This function does nothing if index is out of range.
If you don't know the index, use th... | 1 | 4 | 0 | I can't find a way to hide QComboBox items. So far the only way to filter its items out is to delete the existing ones (with .clear() method). And then to rebuild the entire QComboBox again using its .addItem() method.
I would rather temporary hide the items. And when they are needed to unhide them back.
Is hide/unhide... | How to hide QComboBox items instead of clearing them out | 1.2 | 0 | 0 | 10,685 |
25,172,492 | 2014-08-07T00:39:00.000 | -1 | 0 | 1 | 0 | python,sympy | 26,978,949 | 2 | false | 0 | 0 | Here is a sequence of numbers:
4, 10, 16, 22, 28
The nth term of a sequence is always written in the form "?n + ?".
The number in front of the "n" is always the difference to get from one term to the next. Since the difference is 6, the first part of our rule will be "6n". The rule follows the six times table: 6, 12, 1... | 1 | 2 | 0 | Is there a way to compute the nth term of a Taylor series expansion without defining the value of n? In the case of sine it is (-1)**n*x**(2*n+1)/(2*n+1)!. In Maxima it is a (somewhat) related form to do it with powerseries(sin(x), x, 0). | How to find the nth term of a Taylor series in Sympy | -0.099668 | 0 | 0 | 992 |
25,174,797 | 2014-08-07T05:28:00.000 | 0 | 0 | 0 | 0 | django,python-2.7,django-models,django-forms | 25,174,963 | 2 | false | 1 | 0 | Define a Custom ModelForm by specifying model in Meta and declare the required additional field there. After that set form attribute of your Admin class with the name of YourForm. | 1 | 0 | 0 | I have a model form and I need to add a checkbox to it. This checkbox is not mapped to any database field. Is this possible ? How ! | Can I add a checkbox in to Model Forms in Django even if there is no Field in DB for it | 0 | 0 | 0 | 868 |
25,176,025 | 2014-08-07T06:57:00.000 | 1 | 0 | 0 | 0 | python,tkinter | 25,183,356 | 1 | false | 0 | 1 | It can only respond to keyboard events if it has the focus. If it is withdrawn it cannot have the keyboard focus. So, no, you cannot have a withdrawn window be the active window. | 1 | 0 | 0 | Is there a way to set the withdrawed tk window to the top level, i.e. the active window, even though its withdrawed?
Its so it will listen to keys. | TKinter Python - Set active window when withdrawed | 0.197375 | 0 | 0 | 246 |
25,176,734 | 2014-08-07T07:37:00.000 | 2 | 0 | 0 | 1 | python,django,twisted,event-driven,twisted.web | 25,198,042 | 2 | false | 1 | 0 | Nope, unless you heavily modify django db adapters and some core component you will not get any advantage. There are some tool for simplyfing the job, but you will be on the bleeding edge trying to adapt something built with the blocking paradigm since the beginning, to something completely different.
On the other side... | 1 | 3 | 0 | I have a Django application which I need to deploy in a WSGI container. I can either chose an event driven app server like TwistedWeb or a process driven server like uWSGI. I completely understand the difference between an event driven and a process driven server and I know Django framework is blocking in nature.
I cam... | Is twistedweb with django recommeneded | 0.197375 | 0 | 0 | 244 |
25,177,236 | 2014-08-07T08:04:00.000 | 1 | 0 | 0 | 0 | python,keyboard,kivy,python-3.4 | 25,405,116 | 1 | false | 0 | 1 | I have done something similar, however I did not use popups. My application has a ScreenManager with many Screens, each screen has sub-menu's and each sub-menu of each screen requires it's own key mappings.
To better handle the switching of these sets of key mappings, I created a KeyboardManager class and a KeyboardLay... | 1 | 0 | 0 | I have main Layout and some Popups, I want keys to do some functions when main Layout is focused, some another functions for one Popup when it's opened, some another for another Popup etc. How can I do that the best way? | How can I use keyboard for different layouts in Kivy? | 0.197375 | 0 | 0 | 435 |
25,182,812 | 2014-08-07T12:39:00.000 | 27 | 1 | 0 | 1 | python,pytest,pudb | 25,183,130 | 2 | true | 0 | 0 | Simply by adding the -s flag pytest will not replace stdin and stdout and debugging will be accessible, i.e. pytest -s my_file_test.py will do the trick.
In documentation provided by ambi it is also said that previously using explicitly -s was required for regular pdb too, now -s flag is implicitly used with --pdb flag... | 1 | 24 | 0 | Before my testing library of choice was unittest. It was working with my favourite debugger - Pudb. Not Pdb!!!
To use Pudb with unittest, I paste import pudb;pudb.set_trace() between the lines of code.
I then executed python -m unittest my_file_test, where my_file_test is module representation of my_file_test.py file.... | Using Python pudb debugger with pytest | 1.2 | 0 | 0 | 4,263 |
25,186,308 | 2014-08-07T15:23:00.000 | 4 | 0 | 0 | 0 | python,security,ubuntu,flask | 25,212,067 | 1 | false | 1 | 0 | I understand you're using Apache or Nginx as your web server. If that's correct, I would place both your apps code and the app.wsgi file in your home directory.
Placing a file in /var/www allows it to be seen by the outside world in some cases (that it, unless you specifically specified it to be ignored by your webserv... | 1 | 4 | 0 | I have built a simple flask app on ubuntu server and have placed the code in the following directories:
Main app code: /home/user/flaskapp
WSGI Config: www/flaskapp/app.wsgi
My questions are:
Is the placement of the app's code in my home directory okay in production?
What should I have in my Folder Permissions to run ... | Setup of Flask App Directory and Permissions? | 0.664037 | 0 | 0 | 2,504 |
25,187,640 | 2014-08-07T16:28:00.000 | 1 | 0 | 0 | 0 | python,python-2.7,qt4,pyqt4 | 25,195,595 | 2 | false | 0 | 1 | In PyQt4 it's not a bug but a feature. You can't edit this behaviour. In PyQt5, the placeholder text is shown until the text is not empty.
A simple way to solve problem is to focus some way before QLintEdit. When the user press TAB button, next focus is QLintEdit. | 1 | 2 | 0 | I have a QLineEdit with a PlaceholderText.
I want to clear the PlaceholderText only when a person starts typing, else the blinking cursor and PlacehoderText both should be there in that QLineEdit.
It is the first field of the page, so I have set the focus to this QLineEdit, but the PlaceholderText disappears as soon as... | How to keep both cursor and PlaceholderText displayed at the same time in a QLineEdit? | 0.099668 | 0 | 0 | 256 |
25,189,859 | 2014-08-07T18:43:00.000 | 3 | 0 | 1 | 0 | python,python-2.7,interpreter,bytecode,jit | 25,189,969 | 2 | false | 0 | 0 | Python loads the main script into memory, compiles it into bytecode and runs that. If you modify the source file in the meantime, you're not affecting the bytecode.
If you're running the script as the main script (i. e. by calling it like python myfile.py, then the bytecode will be discarded when the script exits.
If y... | 2 | 4 | 0 | Say I run a Python (2.7, though I'm not sure that makes a difference here) script. Instead of terminating the script, I tab out, or somehow switch back to my editing environment. I can then modify the script and save it, but this changes nothing in the still-running script.
Does Python load all source files into memory... | How does Python read and interpret source files? | 0.291313 | 0 | 0 | 1,871 |
25,189,859 | 2014-08-07T18:43:00.000 | 2 | 0 | 1 | 0 | python,python-2.7,interpreter,bytecode,jit | 25,190,071 | 2 | false | 0 | 0 | First of all, you are indeed correct in your understanding that changes to a Python source file aren't seen by the interpreter until the next run. There are some debugging systems, usually built for proprietary purposes, that allow you to reload modules, but this bring attendant complexities such as existing objects re... | 2 | 4 | 0 | Say I run a Python (2.7, though I'm not sure that makes a difference here) script. Instead of terminating the script, I tab out, or somehow switch back to my editing environment. I can then modify the script and save it, but this changes nothing in the still-running script.
Does Python load all source files into memory... | How does Python read and interpret source files? | 0.197375 | 0 | 0 | 1,871 |
25,191,537 | 2014-08-07T20:23:00.000 | 0 | 0 | 0 | 0 | python,authentication,oauth,flask | 25,207,309 | 1 | false | 1 | 0 | One option would be to require the user to register with your site after using OAuth2, but that's silly - you use OAuth2 to save that in the first place.
I'd just not save a password for this user. Why would you need it anyway? He's authenticating via OAuth2 as you said, and you need to ping the OAuth2 provider to veri... | 1 | 0 | 0 | I have a User model that has name, email, and password.
If a user signs up normally (through a form) the password stored in my db is hashed using passlib. Then, a token is generated and returned to the user's client. The token is a serialization of the player's id. To verify a player, he simply logs in with the token i... | Python Flask and Google OAuth2 best practices | 0 | 0 | 0 | 396 |
25,192,029 | 2014-08-07T20:56:00.000 | 0 | 0 | 0 | 0 | python,nltk | 25,414,604 | 1 | false | 0 | 0 | Read in the chunked portion of your corpus and convert it into the format that the NLTK expects, i.e. as a list of shallow Trees. Once you have it in this form, you can pass it to the evaluate() method just like you would pass the "gold standard" examples.
The evaluate method will strip off the chunks, run your text t... | 1 | 1 | 1 | How to test the default NLTK NER chunker's accuracy on own corpus?
I've tagged a percentage of my own corpus. I'm curious if it's possible to use the default NLTK tagger to see accuracy rate on this corpus?
I already know about the ne_chunker.evaluate() function, but it's not immediately clear to me how to input in my... | How to test the default NLTK NER chunker's accuracy on own corpus? | 0 | 0 | 0 | 269 |
25,193,192 | 2014-08-07T22:18:00.000 | 0 | 0 | 0 | 0 | python,solr,lucene,solr-query-syntax | 25,193,866 | 2 | false | 1 | 0 | You shouldn't query solr when there is no term being looked for (and I seriously doubt google looks over it's searchable indexes when a search term is empty). This logic should be built into whatever mechanism you use to parse the user supplied query terms before constructing the solr query. Lets say the user's input i... | 1 | 0 | 0 | I want my search tool to have a similar behaviour to Google Search when all of the elements entered by the user are excluded (eg.: user input is -obama). In those cases, Google returns an empty result. In my current code, my program just makes an empty Solr query, which causes error in Solr.
I know that you can enter *... | How do I make Solr return an empty result? | 0 | 0 | 1 | 660 |
25,194,297 | 2014-08-08T00:23:00.000 | 3 | 0 | 0 | 0 | python-3.x,peewee | 25,365,070 | 3 | false | 0 | 0 | Peewee cannot create databases with MySql or with other systems that require database and user setup, but will create the database with sqlite when the first table is created. | 2 | 11 | 0 | I've looked through all the docs I could find, and read the source code...and it doesn't seem you can actually create a MySQL database (or any other kind, that I could find) using peewee. If so, that means for any the database I may need to connect to, I would need to create it manually using mysql or some other tool.... | Can peewee create a new MySQL database | 0.197375 | 1 | 0 | 4,151 |
25,194,297 | 2014-08-08T00:23:00.000 | 14 | 0 | 0 | 0 | python-3.x,peewee | 25,195,428 | 3 | true | 0 | 0 | Peewee can create tables but not databases. That's standard for ORMs, as creating databases is very vendor-specific and generally considered a very administrative task. PostgreSQL requires you to connect to a specific database, Oracle muddles the distinction between users and databases, SQLite considers each file to be... | 2 | 11 | 0 | I've looked through all the docs I could find, and read the source code...and it doesn't seem you can actually create a MySQL database (or any other kind, that I could find) using peewee. If so, that means for any the database I may need to connect to, I would need to create it manually using mysql or some other tool.... | Can peewee create a new MySQL database | 1.2 | 1 | 0 | 4,151 |
25,195,723 | 2014-08-08T03:38:00.000 | 1 | 0 | 0 | 0 | python,mysql,excel,win32com,xlrd | 25,203,796 | 1 | true | 1 | 0 | Probably not the answer you were looking for, but your post is very broad, and I've used win32coma and Excel a fair but and don't see those as good tools towards your goal. An easier strategy is this:
for the server, use Flask: it is a Python HTTP server that makes it crazy easy to respond to HTTP requests via Python... | 1 | 0 | 0 | I have developed a website where the pages are simply html tables. I have also developed a server by expanding on python's SimpleHTTPServer. Now I am developing my database.
Most of the table contents on each page are static and doesn't need to be touched. However, there is one column per table (i.e. page) that need... | Database in Excel using win32com or xlrd Or Database in mysql | 1.2 | 1 | 0 | 273 |
25,197,798 | 2014-08-08T07:09:00.000 | 1 | 0 | 0 | 0 | python,scrapy | 25,197,916 | 1 | true | 1 | 0 | Broad Crawls
Scrapy defaults are optimized for crawling specific sites. These sites are often handled by a single Scrapy spider, although this is not necessary or required (for example, there are generic spiders that handle any given site thrown at them).
In addition to this “focused crawl”, there is another common typ... | 1 | 0 | 0 | Is Scrapy framework efficient in crawling any website ? I ask this question because I found on their tutorial that they build usually regular expressions that depends on the architecture (the structure of the links) of the website to crawl it. Does this mean Scrapy is not able to be generic and crawl any website whatev... | Is Scrapy able to crawl any type of websites? | 1.2 | 0 | 0 | 218 |
25,199,405 | 2014-08-08T08:47:00.000 | 10 | 0 | 0 | 1 | python,windows,ip,xml-rpc | 25,221,564 | 1 | false | 0 | 0 | Every domain name gets resolved. There is no exception to this rule, including with regards to a local site.
When you make a request to localhost, localhost's IP gets resolved by the host file every time it gets requested. In Windows, the host file controls this. But if you make a request to 127.0.0.1, the IP address i... | 1 | 15 | 0 | I've setup an XML-RPC server/client communication under Windows. What I've noticed is that if exchanged data volume become huge, there's a difference in starting the server listening on "localhost" vs. "127.0.0.1". If "127.0.0.1" is set, the communication speed is faster than using "localhost". Could somebody explain w... | "localhost" vs "127.0.0.1" performance | 1 | 0 | 1 | 5,148 |
25,199,709 | 2014-08-08T09:03:00.000 | 1 | 1 | 0 | 1 | python,unit-testing,firewall-access | 25,200,050 | 1 | false | 0 | 0 | Is it possible to have the script itself run through these steps? By this I mean have the setup phase of your unit tests probe for firewall, and if detected dynamically setup a proxy somehow, use it to run unit tests, then when done teardown proxy. That seems like it would achieve the transparency you're aiming for. | 1 | 0 | 0 | Here is the problem: I do have several python packages that do have unittest that do require access to different online services in order to run, like connecting to a postgresql database or a LDAP/AD server.
In many cases these are not going to execute successfully because local network is fire-walled, allowing only ba... | Transparent solution for bypassing local outgoing firewalls for python scripts | 0.197375 | 0 | 0 | 352 |
25,205,157 | 2014-08-08T13:54:00.000 | 0 | 0 | 0 | 0 | oracle,python-2.7,blob | 25,205,260 | 1 | false | 0 | 0 | If you have a pure BLOB in the database, as opposed to, say, an ORDImage that happens to be stored in a BLOB under the covers, the BLOB itself has no idea what sort of binary data it contains. Normally, when the table was designed, a column would be added that would store the data type and/or the file name. | 1 | 0 | 0 | This is not a question of a code, I need to extract some BLOB data from an Oracle database using python script. My question is what are the steps in dealing with BLOB data and how to read as images, videos and text? Since I have no access to the database itself, is it possible to know the type of BLOBs stored if it is ... | Reading BLOB data from Oracle database using python | 0 | 1 | 0 | 1,342 |
25,207,697 | 2014-08-08T16:09:00.000 | 3 | 0 | 0 | 0 | python,database,django,postgresql,web | 25,208,098 | 1 | true | 1 | 0 | Are you allowed to use paging in your output? If so, then i'd start by setting a page size of 100 (for example) and then use LIMIT 100 in my various SQL queries. Essentially, each time the user clicks next or prev on the web page a new query would be executed based on the current filtering or sorting options with the L... | 1 | 1 | 0 | I am still a noob in web app development and sorry if this question might seem obvious for you guys.
Currently I am developing a web application for my University using Python and Django. And one feature of my web app is to retrieve a large set of data in a table in the database(postgreSQL), and displaying these data i... | Handle and display large data set in web browser | 1.2 | 1 | 0 | 1,235 |
25,209,753 | 2014-08-08T18:13:00.000 | 4 | 0 | 1 | 0 | python,pip,setuptools,easy-install | 25,209,985 | 2 | true | 0 | 0 | You probably want to make sure that you and your colleagues use the same dependencies during development.
I think I would try to use virtualenv for this. If you and your collegues install it, it will give you a python environment for this project only, and dependencies for this project only.
So the steps would be:
Eve... | 1 | 3 | 0 | I have a Python script, with several external dependencies, that I wish to distribute to colleagues. However, we will need to modify this script regularly so I don't want to install it per-se (i.e. copy to site-packages). From what I've seen setuptools seems to do this implicitly.
Is there a recommended approach to ins... | Installing dependencies only - setuptools | 1.2 | 0 | 0 | 2,261 |
25,212,009 | 2014-08-08T20:48:00.000 | 0 | 0 | 0 | 0 | python,django,postgresql,heroku,bigdata | 25,887,408 | 4 | false | 1 | 0 | You might also consider using the PostGIS postgres extension which includes support for raster data types (basically large grids of numbers) and has many features to make use of them.
However, do not use the ORM in this case, you will want to do SQL directly on the server. The ORM will add a huge amount of overhead for... | 1 | 21 | 0 | I am scoping out a project with large, mostly-uncompressible time series data, and wondering if Django + Postgres with raw SQL is the right call.
I have time series data that is ~2K objects/hour, every hour. This is about 2 million rows per year I store, and I would like to 1) be able to slice off data for analysis th... | Django + Postgres + Large Time Series | 0 | 1 | 0 | 10,343 |
25,212,475 | 2014-08-08T21:24:00.000 | 0 | 0 | 0 | 0 | python,django,celery | 25,213,065 | 1 | false | 0 | 0 | Celery is meant to do background jobs. That means it cannot directly interact to update your web page. To achieve something like what you described, you would need to store the progress data externally (like say into a database) and then query this data source in the webpage via AJAX. Yeah, it is a bit complicated. | 1 | 0 | 0 | I am looking for libraries that can help in displaying a progress message so a user knows how far along the task is. I found Celery, and I was wondering if it is possible to use Celery to display a progress message that updates on the page during the load. For example: "Loaded x amount of data" and enumerate x. | Using celery to update a progress message? | 0 | 0 | 1 | 61 |
25,217,223 | 2014-08-09T09:43:00.000 | 4 | 0 | 0 | 1 | python,google-app-engine,vagrant | 26,824,688 | 1 | true | 1 | 0 | Finally found the answer!
In the latest version of google app engine, there is a new parameter you can pass to dev_appserver.py.
using dev_appserver.py --use_mtime_file_watcher=True works!
Although the change takes 1-2 seconds to detect, but it still works! | 1 | 2 | 0 | I am currently using Vagrant to spin up a VM to run GAE's dev_appserver in the Virtual Machine.
The sync folder works and I can see all the files.
But, after I run the dev appserver, changes to python files by the host machine are not dynamically updated.
To see updates to my python files, I have to relaunch dev appse... | Vagrant and Google App Engine are not syncing files | 1.2 | 0 | 0 | 298 |
25,219,136 | 2014-08-09T13:36:00.000 | 0 | 0 | 1 | 1 | python,windows-7,virtualenv,virtualenvwrapper | 25,244,240 | 1 | true | 0 | 0 | i had found a solution ,just hope to help someone like me.
download the mktemp.exe , put it into the C:\msys\1.0\bin ,then everything will be ok... | 1 | 1 | 0 | I trying to setup virtualenvwrapper in GitBash (Windows 7), but get an error message.
When I run this command: " $ source /c/Python27/Scripts/virtualenvwrapper.sh"
Then I get an error: sh.exe":mktemp:command not found ERROR: virtualenvwrapper could not create a temporary file name.
Somebody help me... | sh.exe":mktemp:command not found ERROR: virtualenvwrapper could not create a temporary file name | 1.2 | 0 | 0 | 946 |
25,219,326 | 2014-08-09T13:59:00.000 | 6 | 0 | 1 | 0 | python,concurrency | 25,220,520 | 1 | true | 0 | 0 | Python does not have those operations. Java has more sophisticated concurrency controls than Python does.
CPython (the typical implementation almost everyone uses) has a Global Interpreter Lock that you will want to understand.
Jython is a Python implementation on the JVM, and so shares many of the concurrency charact... | 1 | 6 | 0 | Trying to find if the python support CAS operations, lock free programming, concurrency like in java? | Does python have compare and swap operations | 1.2 | 0 | 0 | 1,552 |
25,219,911 | 2014-08-09T15:08:00.000 | 0 | 0 | 0 | 0 | python,django | 46,187,663 | 3 | false | 1 | 0 | zypper install python-pip
pip install virtualenv
virtualenv name-env
Source name-env/bin/activate
(name-env) pip install django==version
pip install django | 1 | 0 | 0 | I keep receiving the following error message when trying to install Python-Django on my OpenSuse Linux VM:
The installation has failed. For more information, see the log file at
/var/log/YaST2/y2log. Failure stage was: Adding Repositories
Not sure how to add additional Repositories when I am using the opensuse down... | OpenSuse Python-Django Install Issue | 0 | 0 | 0 | 1,428 |
25,221,497 | 2014-08-09T17:58:00.000 | 0 | 0 | 0 | 0 | python,flask | 25,221,517 | 1 | true | 1 | 0 | If you use send_file() with a filename (not a file object), Flask will automatically set the Content-Length header for you.
send_from_directory() uses send_file() with a filename, so you are set there.
Do make sure you are using Flask 0.10 or newer; the header code was added in that version. | 1 | 2 | 0 | I am writing a small Python Flask application which allow people download file from my server. These files will be served by Python, not web server like Nginx or Apache.
I tried to use send_from_directory() and send_file() and I can download my file but there was no file-size because it was missed the Content-Length fi... | Serving static files in Flask with Content-Length in HTTP response header | 1.2 | 0 | 0 | 1,698 |
25,222,515 | 2014-08-09T20:01:00.000 | 1 | 0 | 0 | 0 | python,html,database | 25,222,611 | 3 | false | 1 | 0 | If I would create such type of application then
I will have some common queries like get by current date,current time , date ranges, time ranges, n others based on my application for the user to select easily.
Some autocompletions for common keywords.
If the data gets changed frequently there is no use saving html, ge... | 3 | 0 | 0 | I'm working on a project that allows users to enter SQL queries with parameters, that SQL query will be executed over a period of time they decide (say every 2 hours for 6 months) and then get the results back to their email address.
They'll get it in the form of an HTML-email message, so what the system basically does... | Creating an archive - Save results or request them every time? | 0.066568 | 1 | 0 | 35 |
25,222,515 | 2014-08-09T20:01:00.000 | 1 | 0 | 0 | 0 | python,html,database | 25,222,656 | 3 | true | 1 | 0 | Specifically regarding retrieving the results from queries that have been run previously I would suggest saving the results to be able to view later rather than running the queries again and again. The main benefits of this approach are:
You save unnecessary computational work re-running the same queries;
You guarante... | 3 | 0 | 0 | I'm working on a project that allows users to enter SQL queries with parameters, that SQL query will be executed over a period of time they decide (say every 2 hours for 6 months) and then get the results back to their email address.
They'll get it in the form of an HTML-email message, so what the system basically does... | Creating an archive - Save results or request them every time? | 1.2 | 1 | 0 | 35 |
25,222,515 | 2014-08-09T20:01:00.000 | 1 | 0 | 0 | 0 | python,html,database | 25,222,678 | 3 | false | 1 | 0 | The crucial difference is that if data changes, new query will return different result than what was saved some time ago, so you have to decide if the user should get the up to date data or a snapshot of what the data used to be.
If relevant data does not change, it's a matter of whether the queries will be expensive, ... | 3 | 0 | 0 | I'm working on a project that allows users to enter SQL queries with parameters, that SQL query will be executed over a period of time they decide (say every 2 hours for 6 months) and then get the results back to their email address.
They'll get it in the form of an HTML-email message, so what the system basically does... | Creating an archive - Save results or request them every time? | 0.066568 | 1 | 0 | 35 |
25,226,153 | 2014-08-10T06:27:00.000 | 4 | 0 | 0 | 1 | python,google-app-engine | 25,226,221 | 1 | false | 1 | 0 | If you call .put() on an entity that you've previously retrieved from the datastore, it will update the existing entity. (Make sure you're not specifying a new key for the entity.) | 1 | 1 | 0 | In appengine documentation, it says that the put() method replaces the previous entity. But when I do so it always adds a new entity to the datastore. How do I update an entity? | Python-How to update an entity in apeengine? | 0.664037 | 0 | 0 | 40 |
25,228,637 | 2014-08-10T12:31:00.000 | 1 | 1 | 0 | 0 | python,curl,pycurl | 25,228,720 | 2 | false | 0 | 0 | Having multiple easy interfaces running concurrently in the same thread means building your own reactor and driving curl at a lower level. That's painful in C, and just as painful in Python, which is why libcurl offers, and recommends, multi.
But that "in the same thread" is key here. You can also create a pool of thre... | 1 | 1 | 0 | I am making something which involves pycurl since pycurl depends on libcurl, I was reading through its documentation and came across this Multi interface where you could perform several transfers using a single multi object. I was wondering if this is faster/more memory efficient than having miltiple easy interfaces ? ... | Is the Multi interface in curl faster or more efficient than using multiple easy interfaces? | 0.099668 | 0 | 0 | 1,906 |
25,229,703 | 2014-08-10T14:43:00.000 | 4 | 1 | 0 | 1 | python,file-io,abort | 25,229,783 | 1 | true | 0 | 0 | Probably not. It will release the file handle when the script stops running. Also you typically only have to worry about corrupting a file when you kill a script that is writing to the file, in case it is interrupted mid-write. | 1 | 2 | 0 | If I run a python script (with Linux) which reads in a file (e.g.: with open(inputfile) as infi:): Will the file be in danger when I abort the script by pressing Ctrl C? | Will aborting a Python script corrupt file which is open for read? | 1.2 | 0 | 0 | 662 |
25,233,396 | 2014-08-10T21:57:00.000 | 1 | 0 | 0 | 1 | python,audio | 25,243,720 | 1 | true | 1 | 0 | I finally got an answer/workaround.
I am using pythons multiprocessing class/functionality to run multiple pygame instances.
So i can play more than one music file at a time with fully control over playmode and playback position. | 1 | 0 | 0 | I am searching for a way/framework to play at least 3 music files at one in a python application. It should run at least under ubuntu and mac as well as on the raspberry pi.
I need per channel/music file/"deck" that is played:
Control of the Volume of the Playback
Control of the start position of the playback
Play and... | Playback of at least 3 music files at one in python | 1.2 | 0 | 0 | 57 |
25,233,539 | 2014-08-10T22:16:00.000 | 1 | 0 | 0 | 0 | python | 25,233,675 | 2 | false | 0 | 0 | Another possibility is to represent the last axis of 20 bits as a single 32 bit integer. This way a 5000x5000 array would suffice. | 1 | 0 | 1 | I'm working with a large 3 dimensional array of data that is binary, each value is one of two possible values. I currently have this data stored in the numpy array as int32 objects that are either 1 or 0.
It works fine for small arrays but eventually i will need to make the array 5000x5000x20, which I can't even get c... | Large Array of binary data | 0.099668 | 0 | 0 | 119 |
25,234,336 | 2014-08-11T00:30:00.000 | 10 | 0 | 0 | 1 | python,amazon-web-services,tcp,amazon-ec2,firewall | 25,234,530 | 1 | false | 0 | 0 | Your TCP_IP is only listening locally because you set your listening IP to 127.0.0.1.
Set TCP_IP = "0.0.0.0" and it will listen on "all" interfaces including your externally-facing IP. | 1 | 5 | 0 | I am trying to run a simple Python TCP server on my EC2, listening on port 6666. I've created an inbound TCP firewall rule to open port 6666, and there are no restrictions on outgoing ports.
I cannot connect to my instance from the outside world however, testing with telnet or netcat can never make the connection. Th... | Simple Python TCP server not working on Amazon EC2 instance | 1 | 0 | 1 | 3,240 |
25,235,040 | 2014-08-11T02:17:00.000 | -1 | 1 | 1 | 0 | python,c,assembly,bit | 25,236,304 | 2 | false | 0 | 0 | You can store bits from 9th onwards in other variable. Then make those vits 0 in EAX. Then do EAX << 7 and add those bits again to it. | 1 | 0 | 0 | For example: EAX = 10101010 00001110 11001010 00100000
I want to move EAX high 8 bits to right 7 times,what can i do in c or in python?
In asm : SHR ah,7
The result of EAX is:10101010 00001110 00000001 00100000
And how about SHR ax,7?
I have tried ((EAX & 0xff00) >> 8 ) >> 7,but i don't how to add it back to ... | how to move a number's high 8 bits 7 times in c or python? | -0.099668 | 0 | 0 | 384 |
25,238,028 | 2014-08-11T07:36:00.000 | 0 | 0 | 0 | 0 | python,scipy,cluster-analysis,hierarchical-clustering | 25,242,915 | 1 | true | 0 | 0 | The solution was that scipy had it's own built in function to turn linkage matrix to binary tree. The function name is scipy.to_tree(matrix) | 1 | 0 | 1 | Recently I was visualizing my datasets using python modules scikit and scipy hierarchical clustering and dendrogram. Dendrogram method drawing me a graph and now I need to export this tree as a graph in my code. I am wondering is there any way to get this data. Any help would be really appreciated. Thanks. | Python hierarchical clustering visualization dump [scipy] | 1.2 | 0 | 0 | 682 |
25,238,425 | 2014-08-11T08:03:00.000 | 5 | 0 | 0 | 0 | python,django,oauth,django-rest-framework,django-oauth | 47,976,325 | 2 | false | 1 | 0 | As the previous answer suggested, you should extend AbstractUser from django.contrib.auth.models.
The problem with the access token that the OP referring to, occur when changing the setting AUTH_USER_MODEL AFTER django-oauth2-provider was migrated.
When django-oauth2-provider is migrated, it creates a key constrain bet... | 1 | 3 | 0 | I am really stuck in my project right now. I am trying to implement Oauth2 for my app. I found out about django-oauth2-provider a lot and tried it. The only problem is, it uses the User model at django.contrib.auth. The main users of our site are saved in a custom model called User which does not inherit from or extend... | django-oauth2-provider with custom user model? | 0.462117 | 0 | 0 | 2,847 |
25,239,361 | 2014-08-11T08:57:00.000 | 2 | 0 | 0 | 0 | python,mysql | 25,239,591 | 2 | true | 0 | 0 | You can just save the base64 string in a TEXT column type. After retrieval just decode this string with base64.decodestring(data) ! | 2 | 2 | 0 | I've done some research, and I don't fully understand what I found.
My aim is to, using a udp listener I wrote in python, store data that it receives from an MT4000 telemetry device. This data is received and read in hex, and I want that data to be put into a table, and store it as a string in base64. In terms of stor... | How to store base64 information in a MySQL table? | 1.2 | 1 | 0 | 5,730 |
25,239,361 | 2014-08-11T08:57:00.000 | 0 | 0 | 0 | 0 | python,mysql | 62,777,767 | 2 | false | 0 | 0 | You can storage a base64 string in a TEXT column type, but in my experience I recommend to use LONGTEXT type to avoid truncated errors in big base64 texts. | 2 | 2 | 0 | I've done some research, and I don't fully understand what I found.
My aim is to, using a udp listener I wrote in python, store data that it receives from an MT4000 telemetry device. This data is received and read in hex, and I want that data to be put into a table, and store it as a string in base64. In terms of stor... | How to store base64 information in a MySQL table? | 0 | 1 | 0 | 5,730 |
25,245,710 | 2014-08-11T14:28:00.000 | 0 | 0 | 0 | 0 | python,amazon-web-services,amazon-s3,boto | 25,245,827 | 1 | true | 1 | 0 | After some research in the boto docs, it looks like using the prefix parameter in the lifecycle add_rule method allows you to do this. | 1 | 0 | 0 | Using Boto, you can create an S3 bucket and configure a lifecycle for it; say expire keys after 5 days. I would like to not have a default lifecycle for my bucket, but instead set a lifecycle depending on the path within the bucket. For instance, having path /a/ keys expire in 5 days, and path /b/ keys to never expire.... | Setting a lifecycle for a path within a bucket | 1.2 | 1 | 1 | 41 |
25,247,910 | 2014-08-11T16:22:00.000 | 3 | 0 | 1 | 0 | python,list,python-2.7 | 25,247,976 | 2 | true | 0 | 0 | Provided there are no other references to l, then memory will be released yes.
What happens is:
l[25:100] creates a new list object with references to the values from l indices 25 through to 100 (exclusive).
l is rebound to now refer the new list object.
The reference count for the old list object formerly bound by l ... | 2 | 0 | 0 | My python list named l contains 100 items.
If I do,
l = l[25:100]
Will this release the memory for the first 25 items?
If not, how can this be achieved? | Will slicing a list release memory? | 1.2 | 0 | 0 | 77 |
25,247,910 | 2014-08-11T16:22:00.000 | 0 | 0 | 1 | 0 | python,list,python-2.7 | 25,249,574 | 2 | false | 0 | 0 | There is also an option that doesn't allocate a new list: del l[:25] will remove the first 25 entries from the existing list, shifting the following ones down. Any other references to l will still point to it, but it is altered into a shorter list.
Note that reference semantics also apply to each of the items; they ma... | 2 | 0 | 0 | My python list named l contains 100 items.
If I do,
l = l[25:100]
Will this release the memory for the first 25 items?
If not, how can this be achieved? | Will slicing a list release memory? | 0 | 0 | 0 | 77 |
25,250,164 | 2014-08-11T18:38:00.000 | 2 | 1 | 1 | 0 | python | 25,250,281 | 1 | true | 0 | 0 | Coderbyte only has the standard 2.7.2 python. There is not a way to import a package they do not have setup for you to use in their environment. | 1 | 0 | 0 | I have been trying to import modules on my python Coderbyte challenges, but to no avail. I noticed that the C++ challenges allow includes, so I've been relying on , for the C++ challenges.
My question is, is there a way to successfully use other modules for challenges written in Python on Coderbyte? | CoderByte Python import statements | 1.2 | 0 | 0 | 552 |
25,250,998 | 2014-08-11T19:35:00.000 | 2 | 0 | 1 | 0 | python,multiple-instances,spyder | 25,689,444 | 4 | false | 0 | 0 | Although clicking on the Spyder icon will not allow you to open two instances, you can open a second instance by simply going to the folder where spyder.py is and running spyder.py from the command line.
Further, you could make an icon for your desktop that simply runs spyder.py from its location. However, I don't kn... | 2 | 85 | 0 | I want to be able to have two instances which are completely independent in the sense that I can be working on two separate unrelated projects in different folders without any interference. | How do I run two separate instances of Spyder | 0.099668 | 0 | 0 | 66,493 |
25,250,998 | 2014-08-11T19:35:00.000 | 159 | 0 | 1 | 0 | python,multiple-instances,spyder | 25,956,248 | 4 | true | 0 | 0 | (Spyder maintainer here) This is easy. You need to go to:
Tools > Preferences > Application
in Spyder 5, or
Tools > Preferences > General
in Spyder 4, click the "Advanced Settings" tab, and deactivate the option called
[ ] Use a single instance
Then every time you start Spyder a new window will be opened. If you want t... | 2 | 85 | 0 | I want to be able to have two instances which are completely independent in the sense that I can be working on two separate unrelated projects in different folders without any interference. | How do I run two separate instances of Spyder | 1.2 | 0 | 0 | 66,493 |
25,252,413 | 2014-08-11T21:05:00.000 | 0 | 0 | 1 | 1 | python,windows,cmd | 25,253,872 | 1 | false | 0 | 0 | Create a shortcut to cmd.exe.
Get properties on that shortcut, and there's an entry for the current working directory. (They change the name of that field every other version of Windows, but I believe most recently it's called "Start In:".) Just set that to C:\Users\Name\FolderLocation\ProjectFolder.
Now, when you doub... | 1 | 0 | 0 | To run Python files (.py) with Windows CMD.exe, I SHIFT + Right Click on my project folder which contains all of my Python code files. Doing this shows a menu containing the option Open command window here, which I click to open CMD.exe with the prompt C:\Users\Name\FolderLocation\ProjectFolder>. I then type the python... | Making a Shortcut for Running Python Files in a Folder with CMD.exe | 0 | 0 | 0 | 5,375 |
25,255,032 | 2014-08-12T01:57:00.000 | 1 | 0 | 1 | 0 | python | 25,255,208 | 1 | true | 0 | 0 | When you import a module for the first time, it gets executed. So, you need to encapsulate all your execution flow inside functions that will be called from the main program.
In fact, in plot10i.py your main is as trivial as useless: just prints hello.
You don't need to use if __name__ == '__main__' if you don't have a... | 1 | 0 | 0 | Using Python 2.7 on Linux
i have two files one is called plot10.py & the other one is called plot10i.py and has def main() in it
with plot10.py being my main file, this is my code: | Import File In Python to another File | 1.2 | 0 | 0 | 59 |
25,255,414 | 2014-08-12T02:49:00.000 | 0 | 0 | 0 | 0 | python-2.7,facebook-graph-api,selenium-webdriver,phantomjs,facebook-sdk-3.0 | 25,302,804 | 1 | false | 1 | 0 | We faced the same issue. We resolved this by closing browser automatically after particular time interval. Clear temporary cache and open new browser instance and continue the process. | 1 | 3 | 0 | I am doing a data extraction project where i am required to build a web scraping program written using python using selenium and phantomjs headless webkit as browser for scaping public information like friendlist in facebook.The program is starting fairly fast but after a day of running it is getting slower and slower... | Web Crawler gets slower with time | 0 | 0 | 1 | 204 |
25,255,554 | 2014-08-12T03:09:00.000 | 1 | 0 | 1 | 0 | python | 25,255,614 | 2 | false | 0 | 0 | This should work for trivial usage, but beware if both instances of your program are, for example, writing to the same file, or acting on a database of some kind. You may get unexpected results. | 1 | 2 | 0 | Let's say I input "A" to the Python program and run it. This would take some time. Rather than waiting and doing nothing, I change the input to "B" in the source code and run another instance of the program. The two instances will output some results when they're done. Would this work or would this mess up some stuff? | Python: Running a code, change some input parameters, and run another instance | 0.099668 | 0 | 0 | 344 |
25,257,031 | 2014-08-12T05:51:00.000 | 0 | 0 | 1 | 0 | python,enigma2 | 38,699,309 | 2 | false | 0 | 0 | 1- Telnet to your STB and enter "enigma2", Your STB will do a Restart GUI then you will be able to see debug messages
2- Run your plugin and check what you need | 1 | 0 | 0 | I am new in Enigma dreambox. I am making simple login plugin. I want to see output of print statement so i can trace my plugin. So where can i find this output of print statement Or is there other way to trace program? | How to see print statment output while coding in enigma os | 0 | 0 | 0 | 360 |
25,261,552 | 2014-08-12T10:04:00.000 | 1 | 0 | 0 | 0 | python,sockets,tcp,udp,multiplayer | 25,261,988 | 1 | true | 0 | 0 | I was thinking I could create a new tcp/udp socket on a new port and let the matched(matched in the search room) players connect to that socket and then have a perfect isolated room for the two to interact with each another.
Yes, you can do that. And there shouldn't be anything hard about it at all. You just bind a so... | 1 | 1 | 0 | I am trying to create a multiplayer game for iPhone(cocos2d), which is almost finished, but the multiplayer part is left. I have searched the web for two days now, and can´t find any thing that answers my question.
I have created a search room(tcp socket on port 2000) that matches players that searches for a quick matc... | Multi multiplayer server sockets in python | 1.2 | 0 | 1 | 902 |
25,261,647 | 2014-08-12T10:08:00.000 | 3 | 0 | 1 | 0 | python,aes,python-3.4 | 25,435,955 | 6 | false | 0 | 0 | To add to @enrico.bacis' answer: AES is not implemented in the standard library. It is implemented in the PyCrypto library, which is stable and well tested. If you need AES, add PyCrypto as a dependency of your code.
While the AES primitives are, in theory, simple enough that you could write an implementation of them i... | 1 | 20 | 0 | Is it possible to encrypt/decrypt data with AES without installing extra modules? I need to send/receive data from C#, which is encrypted with the System.Security.Cryptography reference.
UPDATE
I have tried to use PyAES, but that is too old. I updated some things to make that work, but it didn't.
I've also can't instal... | Python AES encryption without extra module | 0.099668 | 0 | 0 | 48,069 |
25,265,110 | 2014-08-12T13:07:00.000 | 0 | 0 | 0 | 1 | python-3.x,google-cloud-platform,google-cloud-storage | 57,971,532 | 1 | false | 0 | 0 | Although this is quiet an old topic, I will try to provide an answer especially because of people who might stumble on this in the course of their own work. I have experience using more recent versions of gcsfs and it works quiet well. You can find the latest documentation at https://gcsfs.readthedocs.io/en/latest. To ... | 1 | 1 | 0 | When mounting and writing files in the google cloud storage using the gcsfs, the gcsfs is creating folders and files but not writing files. Most of the times it shows input/output error. It even occurs even when we copy files from local directory to the mounted gcsfs directory.
gcsfs version 0.15 | gcsfs is not writing files in the google bucket | 0 | 1 | 0 | 554 |
25,265,148 | 2014-08-12T13:08:00.000 | 0 | 1 | 0 | 0 | python,ssh | 25,265,180 | 3 | false | 0 | 0 | Have you considered Dropbox or SVN ? | 2 | 0 | 0 | I may be being ignorant here, but I have been researching for the past 30 minutes and have not found how to do this. I was uploading a bunch of files to my server, and then, prior to them all finishing, I edited one of those files. How can I update the file on the server to the file on my local computer?
Bonus points ... | update file on ssh and link to local computer | 0 | 0 | 1 | 2,518 |
25,265,148 | 2014-08-12T13:08:00.000 | 0 | 1 | 0 | 0 | python,ssh | 25,265,274 | 3 | false | 0 | 0 | I don't know your local computer OS, but if it is Linux or OSX, you can consider LFTP. This is an FTP client which supports SFTP://. This client has the "mirror" functionality. With a single command you can mirror your local files against a server.
Note: what you need is a reverse mirror. in LFTP this is mirror -r | 2 | 0 | 0 | I may be being ignorant here, but I have been researching for the past 30 minutes and have not found how to do this. I was uploading a bunch of files to my server, and then, prior to them all finishing, I edited one of those files. How can I update the file on the server to the file on my local computer?
Bonus points ... | update file on ssh and link to local computer | 0 | 0 | 1 | 2,518 |
25,269,845 | 2014-08-12T16:52:00.000 | 4 | 0 | 1 | 0 | python,kivy,setup-deployment | 61,918,928 | 3 | true | 0 | 1 | You need a web server and a database to get this working.
Create a licenses table in your database.
Each time a new client pays for your software or asks for a trial, you generate a new long random license, insert it in the licenses table, associate it to the client's email address and send it to the client via email.... | 2 | 7 | 0 | I have made a desktop application in kivy and able to make single executable(.app) with pyinstaller. Now I wanted to give it to customers with the trial period of 10 days or so.
The problem is how to make a trial version which stop working after 10 days of installation and even if the user un-install and install it ag... | How to make trial period for my python application? | 1.2 | 0 | 0 | 2,478 |
25,269,845 | 2014-08-12T16:52:00.000 | 0 | 0 | 1 | 0 | python,kivy,setup-deployment | 69,546,902 | 3 | false | 0 | 1 | My idea is
Make a table in database
Use datetime module and put system date in that table as begining date
Use timedelta module timedelta(15)( for calculating the date that program needs to be expired here i used 15 day trial in code) and store it in table of database as expiry date
Now each time your app start put... | 2 | 7 | 0 | I have made a desktop application in kivy and able to make single executable(.app) with pyinstaller. Now I wanted to give it to customers with the trial period of 10 days or so.
The problem is how to make a trial version which stop working after 10 days of installation and even if the user un-install and install it ag... | How to make trial period for my python application? | 0 | 0 | 0 | 2,478 |
25,270,885 | 2014-08-12T17:48:00.000 | 56 | 0 | 1 | 1 | python,batch-file,python-3.x,cx-freeze | 25,936,813 | 3 | true | 0 | 0 | I faced a similar problem (Python 3.4 32-bit, on Windows 7 64-bit). After installation of cx_freeze, three files appeared in c:\Python34\Scripts\:
cxfreeze
cxfreeze-postinstall
cxfreeze-quickstart
These files have no file extensions, but appear to be Python scripts. When you run python.exe cxfreeze-postinstall from t... | 2 | 26 | 0 | I am using python 3.4 at win-8. I want to obtain .exe program from python code. I learned that it can be done by cx_Freeze.
In MS-DOS command line, I wrote pip install cx_Freeze to set up cx_Freeze. It is installed but it is not working.
(When I wrote cxfreeze to command line, I get this warning:C:\Users\USER>cxfreez... | installing cx_Freeze to python at windows | 1.2 | 0 | 0 | 27,553 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.