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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
14,677,548 | 2013-02-03T21:34:00.000 | 0 | 0 | 0 | 0 | python,django,django-forms | 14,678,289 | 1 | true | 1 | 0 | I would suggest, you use separate view login for up and down voting.
Something like this /upvote/{{comment.pk|urlize}}
and then write a view that works with this url. With PK find the comment that the user is trying to up/down vote, then write the necessary condition to check if the user is authorized to perform that k... | 1 | 3 | 0 | I want to make upvote and downvote buttons for comments but I want all the form inputs that django.contrib.comments.forms.CommentSecurityForm gives me to make sure the form is secure. Is that necessary? And if so, how do I make a form class that with upvote and downvote buttons? Custom checkbox styles? | Upvote and Downvote buttons with Django forms | 1.2 | 0 | 0 | 829 |
14,677,763 | 2013-02-03T21:55:00.000 | 1 | 0 | 0 | 0 | python,video,image-processing,opencv,computer-vision | 14,727,117 | 2 | true | 0 | 0 | I guess you are detecting the cars in each frame and creating a new bounding box each time a car is detected. This would explain the many increments of your variable.
You have to find a way to figure out if the car detected in one frame is the same car from the frame before (if you had a car detected in the previous fr... | 2 | 0 | 1 | ive got this big/easy problem that i need to solve but i cant..
What im trying to do is to count cars on a highway, and i actually can detect the moving cars and put bounding boxes on them... but when i try to count them, i simply cant. I tried making a variable (nCars) and increment everytime the program creates a bo... | Counting Cars in OpenCV + Python | 1.2 | 0 | 0 | 1,748 |
14,677,763 | 2013-02-03T21:55:00.000 | 0 | 0 | 0 | 0 | python,video,image-processing,opencv,computer-vision | 14,678,095 | 2 | false | 0 | 0 | You should use an sqlite database for store cars' informations. | 2 | 0 | 1 | ive got this big/easy problem that i need to solve but i cant..
What im trying to do is to count cars on a highway, and i actually can detect the moving cars and put bounding boxes on them... but when i try to count them, i simply cant. I tried making a variable (nCars) and increment everytime the program creates a bo... | Counting Cars in OpenCV + Python | 0 | 0 | 0 | 1,748 |
14,679,012 | 2013-02-04T00:34:00.000 | 0 | 1 | 1 | 0 | python,python-2.7 | 14,679,195 | 2 | false | 0 | 0 | Maybe look at the logging module that comes with python | 1 | 0 | 0 | I have 3 scripts. one is starttest.py which kicks the execution of methods called in test.py. Methods are defined in module.py.
There are many print statements in each of file and I want to capture each print statement in my log file from Starttest.py file itself. I tried using sys.stdout in starttest.py file but this ... | Capturing log information from bunch of python functions in single file | 0 | 0 | 0 | 109 |
14,679,610 | 2013-02-04T02:22:00.000 | 1 | 0 | 0 | 0 | javascript,python,mysql,d3.js,data-visualization | 14,679,748 | 3 | false | 0 | 0 | d3 is a javascript library that run on client-side, while MySQL database is supposed to run on server-side.
d3 can't connect to MySQL database, let alone conversion to json format. The way you thought it was possible (steps 1 and 2) is what you should do. | 1 | 4 | 0 | I need some help with d3 and MySQL. Below is my question:
I have data stored in MySQL (eg: keywords with their frequencies). I now want to visualize it using d3. As far as my knowledge of d3 goes, it requires json file as input. My question is: How do I access this MySQL database from d3 script? One way which i could... | Accessing MySQL database in d3 visualization | 0.066568 | 1 | 0 | 8,185 |
14,681,015 | 2013-02-04T05:44:00.000 | 1 | 0 | 1 | 1 | python,django,subprocess | 14,691,638 | 2 | false | 1 | 0 | You can use the same technique in Python as you did in Java, that is store the reference to the process in a module variable or implement a kind of a singleton.
The only problem you have as opposed to Java, is that Python does not have that rich analogy to the Servlet specification, and there is no interface to handle... | 1 | 1 | 0 | So I am using subprocess to spawn a long running process through the web interface using Django. Now if a user wants to come back to the page I would like to give him the option of terminating the subprocess at a later stage.
How can do this? I implemented the same thing in Java and made a global singleton ProcessManag... | Storing subprocess object in memory using global singleton instance | 0.099668 | 0 | 0 | 1,465 |
14,681,697 | 2013-02-04T06:52:00.000 | 0 | 0 | 1 | 0 | python-2.7,wxpython | 14,692,494 | 1 | true | 0 | 1 | You probably won't be able to get an accurate progress unless your build scripts are generating some progress information in the output that you can parse and represent in your GUI. Either way you will probably want to use wx.ProgressDialog or use a wx.Gauge in your main panel or something like that. Both wx.Progress... | 1 | 0 | 0 | I have developed the python script for checking out a source code from repository and build it using visual studio.When i run the script,a GUI opens(developed using wxPython) which shows a button,clicking on which does the checkout and build.I would want to show a progress bar showing the process running when i click o... | Show progress bar when running a script | 1.2 | 0 | 0 | 400 |
14,682,935 | 2013-02-04T08:29:00.000 | 0 | 0 | 0 | 0 | python,pyqt4,qtableview | 16,030,744 | 1 | true | 0 | 1 | Check if you are using same instance of QtSql.QSqlDatabase for all the views you create. | 1 | 1 | 0 | I have an application developed in Python using PyQt4, In which i used QTableView to display a reports.
when i open one report window with QTableView it shows the result properly.
If i open another report window with QTableView it shows the result properly.
Now both the windows are displaying the data in there QTableVi... | QTableView data disapears by opening another QTableView | 1.2 | 0 | 0 | 91 |
14,684,968 | 2013-02-04T10:39:00.000 | -2 | 0 | 1 | 0 | python,django,virtualenv | 36,716,554 | 3 | false | 1 | 0 | If it is going to be on the same path you can tar it and extract it on another machine. If all the same dependencies, libraries etc are available on the target machine it will work. | 1 | 72 | 0 | I'm new to virtualenv but I'm writting django app and finally I will have to deploy it somehow.
So lets assume I have my app working on my local virtualenv where I installed all the required libraries. What I want to do now, is to run some kind of script, that will take my virtualenv, check what's installed inside and ... | How to export virtualenv? | -0.132549 | 0 | 0 | 67,525 |
14,686,543 | 2013-02-04T12:12:00.000 | 1 | 0 | 0 | 0 | python,tkinter,filedialog | 14,822,605 | 2 | false | 0 | 1 | I had to get rid of the canvasx/y statements. That line now simply reads set item [$data(canvas) find closest $x $y], which works well. $data(canvas) canvasx $x for its own works well but not in connection with find closest, neither if it is written in two lines. | 1 | 4 | 0 | I am using Tkinter with Python 2.6 and 2.7 for programming graphic user interfaces.
These User Interfaces contain dialogs for opening files and saving data from the tkFileDialog module. I would like to adapt the dialogs and add some further entry widgets e.g. for letting the user leave comments.
Is there any way for do... | Python Tkinter: Adding widgets to file dialogs | 0.099668 | 0 | 0 | 1,084 |
14,686,861 | 2013-02-04T12:31:00.000 | 0 | 1 | 0 | 1 | python,c,linux,rpc | 14,688,041 | 3 | false | 0 | 0 | An ONC RPC client can be created by using the .idl file and rpcgen. The original RPC protocol precedes SOAP by several years.
Yes, you can create the RPC client in linux (see rpcgen)
Yes, you can create the RPC client in python (please see pep-0384) | 1 | 2 | 0 | I am looking for solutions to create a RPC client in Linux that can connect to Sun ONC RPC server.
The server is written in C.
I would like to know if I can:
Create an RPC client in Linux
Create the RPC client in Python | Connect to Sun ONC RPC server from Linux | 0 | 0 | 0 | 1,821 |
14,687,281 | 2013-02-04T12:58:00.000 | 0 | 1 | 0 | 0 | python,django,django-testing | 14,689,563 | 1 | false | 0 | 0 | Try to test every case of how your custom field could be used. In example try to send by it different kind of datas (string, integers, blank, different image formats etc.) and check if it works according to your expectations. | 1 | 0 | 0 | i have developed a custom field that extends ImageField and this custom field, dynamically creates 2more normal fields. Now, I need to write tests for this custom fields ?
What tests are needed for this customfield ? Can you name them so that I will code those test cases. I am not asking technically how to write a tes... | What tests do I need to write for the customfield that I have developed? | 0 | 0 | 0 | 32 |
14,688,306 | 2013-02-04T13:59:00.000 | 14 | 0 | 0 | 0 | python,pandas | 25,715,719 | 13 | false | 0 | 0 | Just ran into this issue myself. As of pandas 0.13, DataFrames have a _metadata attribute on them that does persist through functions that return new DataFrames. Also seems to survive serialization just fine (I've only tried json, but I imagine hdf is covered as well). | 1 | 127 | 1 | Is it possible to add some meta-information/metadata to a pandas DataFrame?
For example, the instrument's name used to measure the data, the instrument responsible, etc.
One workaround would be to create a column with that information, but it seems wasteful to store a single piece of information in every row! | Adding meta-information/metadata to pandas DataFrame | 1 | 0 | 0 | 59,446 |
14,689,531 | 2013-02-04T15:05:00.000 | 2 | 0 | 1 | 0 | python,regex,python-re,rawstring | 53,171,192 | 4 | false | 0 | 0 | you also can use [\r\n] for matching to new line | 1 | 50 | 0 | I got a little confused about Python raw string. I know that if we use raw string, then it will treat '\' as a normal backslash (ex. r'\n' would be \ and n). However, I was wondering what if I want to match a new line character in raw string. I tried r'\\n', but it didn't work.
Anybody has some good idea about this? | How to match a newline character in a raw string? | 0.099668 | 0 | 0 | 124,726 |
14,690,411 | 2013-02-04T15:55:00.000 | 1 | 0 | 0 | 0 | python,graph | 14,691,588 | 1 | true | 1 | 0 | I would recommend the awesome d3.js package, you can do just about anything with it and it produces beautiful interactive charts. | 1 | 1 | 0 | I'm using Python to work on a web app that has a data visualization element. Basically, it will gather data about a user's music catalog and allow them to visualize it and take actions based on what the data tells them. I'll pretty much exclusively need bar graphs to achieve the visualization I want. Given the dynamic ... | Dynamically Generating Pretty Web Based Charts/Graphs | 1.2 | 0 | 0 | 262 |
14,692,367 | 2013-02-04T17:45:00.000 | 1 | 0 | 0 | 0 | python,pygame | 14,694,352 | 1 | true | 0 | 1 | There is no single command to do this. You will first have to change the size using pygame.transform.scale, then make a rect of the same size, and set its place, and finally blit. It would probably be wisest to do this in a definition. | 1 | 0 | 0 | I'm currently working on a small game using pygame.
Right now I render images the standard way, by loading them and then blitting them to my main surface. This is great, if I want to work with an individual image size. Yet, I'd like to take in any NxN image and use it at an MxM resolution. Is there a technique for thi... | Rendering image independent of size? | 1.2 | 0 | 0 | 128 |
14,692,822 | 2013-02-04T18:11:00.000 | 1 | 0 | 1 | 0 | python,py2exe | 14,693,751 | 1 | false | 0 | 1 | I think it is possible. I'm not sure how py2exe works, but I know how pyinstaller does and since both does the same it should work similiar.
Namely, one-file flag doesn't really create one file. It looks like that for end user, but when user run app, it unpacks itself and files are stored somewhere physically. You cou... | 1 | 3 | 0 | I have seen a similar question on this site but not answered correctly for my requirements. I am reasonably familiar with py2exe.
I'd like to create a program (in python and py2exe) that I can distribute to my customers which would enable them to add their own data (not code, just numbers) and redistribute as a new/ame... | compile py2exe from executable | 0.197375 | 0 | 0 | 167 |
14,694,559 | 2013-02-04T20:00:00.000 | 0 | 0 | 1 | 0 | python,python-2.7 | 14,694,670 | 4 | false | 0 | 0 | Probably for the same reason for which classes dont have private attributes. This is spirit of Python. | 2 | 4 | 0 | I just got bit by a bug that would have been prevented if list were a reserved word in Python. (Dumbery on my part, to be sure.)
So why isn't list (or dict or float or any of the types) a reserved word? It seems easier to add an interpreter error than to try and remember a rule.
(I also know Eclipse/PyDev has a setting... | Why isn't 'list' a reserved word in Python? | 0 | 0 | 0 | 5,125 |
14,694,559 | 2013-02-04T20:00:00.000 | 0 | 0 | 1 | 0 | python,python-2.7 | 27,695,558 | 4 | false | 0 | 0 | This is a bit of an opinion question, but here's my 2c.
It's a big deal to make a keyword reserved, as essentially it means you can never use that keyword in code, so it's often considered good programming language design to keep the list short. (perl doesn't, but then perl has a completely different philosophy to most... | 2 | 4 | 0 | I just got bit by a bug that would have been prevented if list were a reserved word in Python. (Dumbery on my part, to be sure.)
So why isn't list (or dict or float or any of the types) a reserved word? It seems easier to add an interpreter error than to try and remember a rule.
(I also know Eclipse/PyDev has a setting... | Why isn't 'list' a reserved word in Python? | 0 | 0 | 0 | 5,125 |
14,696,626 | 2013-02-04T22:10:00.000 | 2 | 0 | 1 | 0 | javascript,python | 14,696,671 | 2 | false | 0 | 0 | The equivalent operator in Javascript is "===".
Similarly, "!==" is the same as "is not" in Python. | 1 | 3 | 0 | How to check that two variables point to the same object? Meaning that if I mutate it—the value pointed to by both variables will change. In Python there is is operator, what about JavaScript? | Object identity in JavaScript | 0.197375 | 0 | 0 | 307 |
14,699,031 | 2013-02-05T02:09:00.000 | 1 | 0 | 1 | 0 | python,algorithm,dynamic-programming | 14,700,093 | 2 | false | 0 | 0 | I believe the point of the rod cutting problem is that a greedy algorithm will not always produce the optimal solution - this variant seems to prove the same point.
Consider the L=50 rod to be cut at [13,25,26]. An algorithm selecting the cut closest to the mid-point would tell you to do [25, 13, 26] for a total cost o... | 1 | 2 | 0 | I was asked this as a brain teaser in one of my classes but was unable to figure it out (Wasn't a homework question, just a teaser one of the TA's gave us to think about).
You are given a rod with a list of n points to cut at, for example [1,5,11], and the total length of the rod, for example 20. You are also told that... | Python Rod Cutting Algorithm - Variant | 0.099668 | 0 | 0 | 2,075 |
14,700,305 | 2013-02-05T04:37:00.000 | 1 | 0 | 0 | 1 | php,python,apache,localhost,tornado | 14,700,450 | 1 | true | 1 | 0 | Easiest is to run Tornado and Apache on different ports/addresses
So you probably have Apache listening to port 80 already. Tornado could listen to port 81
If the server is multihomed, you could have Apache listen to a.b.c.d:80 and Tornado listen to a.b.c.e:80. This means that you'll at least have to have the Apache pa... | 1 | 0 | 0 | I have a website built in PHP and currently running on an Apache server (XAMPP locally). I would like to integrate a real-time chat system into the website. PHP and Apache not being geared for this in the slightest, I decided to work with Tornado and Python.
What is the easiest way to keep the base of the site in PHP ... | How can I integrate Tornado into my (currently) Apache driven site? | 1.2 | 0 | 0 | 956 |
14,700,943 | 2013-02-05T05:45:00.000 | 0 | 0 | 0 | 0 | python,django | 14,702,956 | 1 | false | 1 | 0 | what is the reason for nesting "data" app in "apps"? it is uncommon to nest one app inside of another when there are only two apps (unless you have some great reason to). suggestions:
create an apps app, and create a data model for it;
create an apps app, and a data app; (link them however through the models)
the answe... | 1 | 0 | 0 | I want to make an application in django with two apps named apps and data.the "data" apps is placed within "apps".I had entered 'apps.data' in the Installed apps in "settings.py".when I run the devserver i got this error "no modules named apps.data".Any one please help me. | Modules not found in django | 0 | 0 | 0 | 207 |
14,701,901 | 2013-02-05T07:03:00.000 | 4 | 0 | 1 | 1 | python | 40,097,923 | 2 | false | 0 | 0 | You can just rebind the logger in the child process to its own. I don't know about other OS, but on Linux the forking doesn't duplicate the entire memory footprint (as Ellioh mentioned), but uses "copy-on-write" concept. So until you change something in the child process - it stays in the memory scope of the parent pro... | 1 | 4 | 0 | I am using multiprocessing module to fork child processes. Since on forking, child process gets the address space of parent process, I am getting the same logger for parent and child. I want to clear the address space of child process for any values carried over from parent. I got to know that multiprocessing does fork... | Multiprocessing or os.fork, os.exec? | 0.379949 | 0 | 0 | 6,063 |
14,711,161 | 2013-02-05T15:36:00.000 | 1 | 0 | 0 | 0 | python,selenium | 14,711,223 | 1 | true | 0 | 0 | Short answer, unless the xml is posted to the page, you can't. Long answer, you can use Selenium to do JS injection on the page so that the xml document is replicated to some hidden page element you can expect, or stored to a file locally that you can open. This is, of course, assuming that the xml document is actual... | 1 | 0 | 0 | So I have a webpage that has some javascript that gets executed when a link is clicked. This javascript opens a new window and calls some other javascript which requests an xml document which it then parses for a url to pass to a video player. How can I get that xml response using selenium? | Handling responses with Python bindings for Selenium | 1.2 | 0 | 1 | 149 |
14,715,739 | 2013-02-05T19:50:00.000 | 1 | 0 | 0 | 0 | python,wxpython,pyopengl | 14,971,097 | 2 | false | 0 | 1 | Are you running Linux? Perhaps you could get that information from the table of display modes that glxinfo -t outputs. | 1 | 1 | 0 | I am creating a wx.Frame with a GLCanvas. On some platforms, setting the WX_GL_DEPTH_SIZE attribute of the canvas to 32 works fine. On another platform, I just get a blank frame (the GLCanvas doesn't render) unless I reduce the depth size to 16. Is there an easy way in the calling code to determine the allowable val... | How can I determine the max allowable WX_GL_DEPTH_SIZE for a wx GLCanvas? | 0.099668 | 0 | 0 | 239 |
14,716,662 | 2013-02-05T20:51:00.000 | 9 | 1 | 0 | 1 | eclipse,pydev,python | 15,360,958 | 2 | false | 0 | 0 | Unfortunately no. You can remotely connect to your Linux server via Remote System Explorer (RSE). But can't use it as a remote interpreter. I use Pycharm. You can use the free Community Edition or the Professional Edition for which you have to pay for it. It is not that expensive and it has been working great for me. | 1 | 11 | 0 | is there a posibility to make eclipse PyDev use a remote Python interpreter?
I would like to do this, as the Linux Server I want to connect to has several optimization solvers (CPLEX, GUROBI etc.) running, that my script uses.
Currently I use eclipse locally to write the scripts, then copy all the files to the remote m... | Eclipse PyDev use remote interpreter | 1 | 0 | 0 | 7,677 |
14,718,543 | 2013-02-05T22:55:00.000 | 2 | 0 | 1 | 0 | python,nlp,nltk,n-gram | 14,718,635 | 1 | false | 0 | 0 | You might want to look into word sense disambiguation (WSD), it is the problem of determining which "sense" (meaning) of a word is activated by the use of the word in a particular context, a process which appears to be largely unconscious in people. | 1 | 3 | 1 | I'm currently working on a NLP project that is trying to differentiate between synonyms (received from Python's NLTK with WordNet) in a context. I've looked into a good deal of NLP concepts trying to find exactly what I want, and the closest thing I've found is n-grams, but its not quite a perfect fit.
Suppose I am tr... | Natural Language Processing - Similar to ngram | 0.379949 | 0 | 0 | 1,365 |
14,720,070 | 2013-02-06T01:26:00.000 | 7 | 0 | 1 | 0 | python,ide | 14,753,015 | 4 | false | 0 | 0 | In PyCharm, select a code fragment you want to execute then choose "Execute selection in console" (Alt+Shift+E in my keymap). | 1 | 8 | 0 | I think this is a very useful feature for beginners. When I learned R, I would keep my notes for each lesson in one file and execute the lines that I wanted. Now I'm learning Python, and I have to save each new thing in a different file. Is there no IDE that can do what R does? I'm currently using PyCharm. | Does any Python IDE let you run a selection of code like R does? | 1 | 0 | 0 | 7,809 |
14,720,476 | 2013-02-06T02:11:00.000 | 1 | 0 | 0 | 1 | python,google-app-engine | 14,723,922 | 3 | false | 1 | 0 | I assume you are using Linux, Ubuntu/Mint If not that would be a good start
Debug as much as you can locally using dev_appserver.py - this will display errors on start up (in the console)
Add your own debug logs when needed
Run code snippets in the interactive console - this is really useful to test snippets of code:
... | 1 | 1 | 0 | I'm starting to use Google App Engine and being a newcomer to much of the stuff going on here, I broke my webpage (all I see is "server error" in my web browser). I'd like to be able to see a console of some sort which is telling me what's going wrong (python syntax? file not found? something else?). Searching around a... | How to monitor google app engine from command line? | 0.066568 | 0 | 0 | 104 |
14,723,707 | 2013-02-06T07:25:00.000 | 1 | 0 | 0 | 0 | python,bioinformatics,biopython,chemistry | 14,726,014 | 3 | false | 0 | 0 | A pdb file can contain pretty much anything.
A lot of projects allows you to parse them. Some specific to biology and pdb files, other less specific but that will allow you to do more (setup calculations, measure distances, angles, etc.).
I think you got downvoted because these projects are numerous: you are not the on... | 1 | 2 | 0 | I am working on bio project.
I have .pdb (protein data bank) file which contains information about the molecule.
I want to find out the following of a molecule in the .pdb file:
Molecular Mass.
H bond donor.
H bond acceptor.
LogP.
Refractivity.
Is there any module in python which can deal with .pdb file i... | python with .pdb files | 0.066568 | 0 | 0 | 1,814 |
14,723,964 | 2013-02-06T07:45:00.000 | 2 | 0 | 1 | 0 | python | 14,724,021 | 2 | false | 0 | 0 | Use r'C:\abc\test' or 'C:\\abc\\test' when you enter your strings | 1 | 2 | 0 | I build one web and user can enter directory path in form.
My program will extract the path and write into one file.
My question is when the path include some special word such as \t \n, the program can't write file correctly.
For example:
C:\abc\test will become C:\abc[TAB]est
How can I change the string into other ty... | How to write \t to file using Python | 0.197375 | 0 | 0 | 2,685 |
14,726,495 | 2013-02-06T10:16:00.000 | 0 | 0 | 0 | 0 | python,hdf5,pytables | 14,750,133 | 1 | false | 0 | 0 | How about you change the _v_title attribute on the Node and then save the hdf5 file again?
table._v_title = 'new title' | 1 | 0 | 0 | I was wondering if there was a way to change the title of an HDF5 table, that I created in my python code, using pyTables. I gave the wrong title string, and I need too change it now, so when I open it again in python, I can distinguish it from other tables that I load, according to its title. | How to change the an HDF5 table title (created using pytables) | 0 | 0 | 0 | 185 |
14,727,517 | 2013-02-06T11:06:00.000 | 2 | 0 | 1 | 0 | python,self | 14,727,642 | 3 | true | 0 | 0 | No, there isn't. You could though use another word instead of self, although the convention is to use "self". | 2 | 5 | 0 | Is there anyway of making Python methods have access to the class fields/methods without using the self parameter?
It's really annoying having to write self. self. self. self. The code gets so ugly to the point I'm thinking of not using classes anymore purely for code aesthetics. I don't care about the risks or best pr... | Any ideas about how to get rid of self? | 1.2 | 0 | 0 | 1,285 |
14,727,517 | 2013-02-06T11:06:00.000 | 3 | 0 | 1 | 0 | python,self | 14,727,662 | 3 | false | 0 | 0 | The only possible solution (except for making your own no-self Python version (using sources))
Try another language. | 2 | 5 | 0 | Is there anyway of making Python methods have access to the class fields/methods without using the self parameter?
It's really annoying having to write self. self. self. self. The code gets so ugly to the point I'm thinking of not using classes anymore purely for code aesthetics. I don't care about the risks or best pr... | Any ideas about how to get rid of self? | 0.197375 | 0 | 0 | 1,285 |
14,727,628 | 2013-02-06T11:12:00.000 | 0 | 1 | 0 | 0 | python,performance,templating | 16,305,372 | 1 | true | 1 | 0 | After lots of trying and reading I found string.Template from the Core Library to be the fastest - I just wrapped in my own simple class to encapsulate the file-access/reads et voilà. | 1 | 0 | 0 | After using cheetah and mako at their functional minimum (only for substitution) for sometime, I started asking myself whether just using string.Template wouldn't be the better and simpler approach for my use case(less deps).
In addition I wondered whether it would be reasonable to import these templates as .py files ... | Fastest way to do _simple_ templating with Python | 1.2 | 0 | 0 | 42 |
14,731,988 | 2013-02-06T14:55:00.000 | 1 | 0 | 0 | 0 | python,django,http,templates | 14,732,094 | 4 | false | 1 | 0 | Have you tried with another browser ? Is your custom error page larger than 512 bytes ? It seems some browsers (including Chrome) replace errors page with their own when the server's answer is shorter than 512 bytes. | 1 | 9 | 0 | I am creating a custom HTTP 500 error template. Why is it Django shows it when i raise an exception and not when I return HttpResponseServerError (I just get the default browser 500 error)? I find this behaviour strange... | Django HTTP 500 Error | 0.049958 | 0 | 0 | 19,790 |
14,732,950 | 2013-02-06T15:43:00.000 | 0 | 0 | 1 | 0 | python,camera,blender | 14,811,330 | 1 | false | 0 | 0 | The easiest way to make the camera look at an object is the Edit Object Actuator. There you can replace Add Object to Track To and then you just need to specify an object.
Perhaps you can change it in the game with a python script, using EditObjectActuator.track_object | 1 | 1 | 0 | I want to use blender to programmatically move the camera around the scene while remaining focused on a particular location. What's the easiest way to make the camera look at an object without having to specify rx,ry,and rz. I'm looking for the Python function to call and not do it through the blender GUI. I am using b... | Blender python scripting | 0 | 0 | 0 | 667 |
14,733,471 | 2013-02-06T16:06:00.000 | 2 | 0 | 1 | 0 | python,numpy,string-formatting,multidimensional-array | 14,734,299 | 3 | false | 0 | 0 | Try numpy.set_printoptions() -- there you can e.g. specify the number of digits that are printed and suppress the scientific notation. For example, numpy.set_printoptions(precision=8,suppress=True) will print 8 digits and no "...e+xx". | 1 | 2 | 1 | I'm a beginner in python and easily get stucked and confused...
When I read a file which contains a table with numbers with digits, it reads it as an numpy.ndarray
Python is changing the display of the numbers.
For example:
In the input file i have this number: 56143.0254154
and in the output file the number is writt... | python changes format numbers ndarray many digits | 0.132549 | 0 | 0 | 1,536 |
14,735,464 | 2013-02-06T17:44:00.000 | 1 | 0 | 0 | 0 | python,django,nginx,gunicorn | 14,740,868 | 1 | true | 1 | 0 | Use gunicorn_django [OPTIONS] myproject if you use myproject.settings | 1 | 6 | 0 | I've been reading about deploying Django with gunicorn and I wanted to give it a try.
I have found at least 3 ways of running a server with gunicorn and django:
gunicorn [OPTIONS] [APP_MODULE] # tested locally and worked fine
python managy.py run_gunicorn # also works fine locally
gunicorn_django [OPTIONS] [SETTINGS... | Django with Gunicorn different ways to deploy | 1.2 | 0 | 0 | 472 |
14,735,468 | 2013-02-06T17:44:00.000 | 1 | 0 | 1 | 0 | python,random,seeding,mersenne-twister | 24,877,029 | 2 | false | 0 | 0 | I realise this was more than a year ago, but in case you glance back, there's an easy solution: Just grab a new value from SystemRandom to XOR with the output from the MT RNG every kth time, for some sufficiently large k, instead of every time. E.g. if SystemRandom is 50 times slower and you set k = 5000, your new com... | 1 | 1 | 0 | As many people know, Python uses the Mersenne Twister (MT) algorithm to handle its random numbers. However, despite having a very long period (~2^19937), it is also well-known that you can't reach every random permutation when you shuffle a sequence greater than 2080 elements (since !2081 > 2^19937). As I am dealing ... | Avoiding Exact Repeats for Mersenne Twister in Python | 0.099668 | 0 | 0 | 699 |
14,736,788 | 2013-02-06T19:06:00.000 | 2 | 1 | 0 | 1 | python,python-2.7,debian,gunicorn | 14,737,918 | 1 | true | 0 | 0 | That is indeed the proper way to do it. Start it with the -p option so you don't have to guess at the PID if you have more than one instance running. You can tell gunicorn to reload your application without restarting the gunicorn process itself by sending it a SIGHUP instead of killing it.
If that makes you uncomforta... | 1 | 1 | 0 | How can I stop, restart or start Gunicorn running within a virtualenv on a Debian system?
I can't seem to find a solution apart from finding the PID for the gunicorn daemon and killing it.
Thank you. | How can I stop, restart or start Gunicorn running within a virtualenv on a Debian system? | 1.2 | 0 | 0 | 5,683 |
14,739,044 | 2013-02-06T21:22:00.000 | 6 | 0 | 0 | 1 | python,google-app-engine,app-engine-ndb | 14,749,034 | 2 | false | 0 | 0 | One thing that most GAE users will come to realize (sooner or later) is that the datastore does not encourage design according to the formal normalization principles that would be considered a good idea in relational databases. Instead it often seems to encourage design that is unintuitive and anathema to established n... | 2 | 11 | 0 | I would like to hear your opinion about the effective implementation of one-to-many relationship with Python NDB. (e.g. Person(one)-to-Tasks(many))
In my understanding, there are three ways to implement it.
Use 'parent' argument
Use 'repeated' Structured property
Use 'repeated' Key property
I choose a way based on th... | Effective implementation of one-to-many relationship with Python NDB | 1 | 1 | 0 | 1,389 |
14,739,044 | 2013-02-06T21:22:00.000 | 7 | 0 | 0 | 1 | python,google-app-engine,app-engine-ndb | 14,740,062 | 2 | false | 0 | 0 | A key thing you are missing: How are you reading the data?
If you are displaying all the tasks for a given person on a request, 2 makes sense: you can query the person and show all his tasks.
However, if you need to query say a list of all tasks say due at a certain time, querying for repeated structured properties is ... | 2 | 11 | 0 | I would like to hear your opinion about the effective implementation of one-to-many relationship with Python NDB. (e.g. Person(one)-to-Tasks(many))
In my understanding, there are three ways to implement it.
Use 'parent' argument
Use 'repeated' Structured property
Use 'repeated' Key property
I choose a way based on th... | Effective implementation of one-to-many relationship with Python NDB | 1 | 1 | 0 | 1,389 |
14,741,395 | 2013-02-07T00:14:00.000 | 2 | 0 | 0 | 1 | java,python,google-app-engine | 14,743,018 | 1 | true | 1 | 0 | It'll be a complete rewrite.
However, the server side should be independent of the client. You can have a python client for the Raspberry Pi and your server side code can still be written in Java. | 1 | 0 | 0 | I'm a big noob to GAE, moderate level in Python, and moderate-to-rusty in Java.
I am looking to convert an existing and working GAE Java app (in the Google Play store and runs on Android) into GAE Python.
The end goal is to get it into the Raspberry Pi Store, so I'm assuming GAE Python would be the most seamless.
Has a... | Convert Java Google AppEngine app to Python AppEngine | 1.2 | 0 | 0 | 201 |
14,741,824 | 2013-02-07T01:02:00.000 | 6 | 0 | 0 | 0 | python,django,web2py | 14,742,495 | 2 | false | 1 | 0 | I'm a beginner also. I started in about 8 months ago knowing no computer science, programming, powershell, or even html/css, and now I just about have a full django website ready, minus some minor issues because I need video and video is still above my head and hard to find info/learn about. Anyway, if you don't alrea... | 1 | 0 | 0 | I am very interested in learning web programming.. I want to use something from python but not sure if I want to use web2py or django.. Django seems difficult to set up for a beginner such as myself.. But I do not want to throw it out just yet.. Soo what are some expert opinions on web programming frameworks? Also, if ... | Web2py vs django for beginner web programmer | 1 | 0 | 0 | 4,734 |
14,742,170 | 2013-02-07T01:41:00.000 | 0 | 0 | 0 | 0 | python,django | 14,742,935 | 4 | false | 1 | 0 | You can have a look at CKEditor. | 1 | 0 | 0 | I am very interested in using Django for creating a small travel blog for myself. There are a few reasons why I am more interested in using Django instead of something like Wordpress. One is that I am interested in having a grip on all the details and in the end creating something that doesn't look like a wordpress b... | Django Text Formatting, Markup? Markdown? | 0 | 0 | 0 | 1,434 |
14,742,893 | 2013-02-07T03:13:00.000 | 2 | 0 | 0 | 0 | python,matlab,pandas,gps | 14,754,539 | 5 | false | 0 | 0 | What you can do is use interp1 function. This function will fit in deifferent way the numbers for a new X series.
For example if you have
x=[1 3 5 6 10 12]
y=[15 20 17 33 56 89]
This means if you want to fill in for x1=[1 2 3 4 5 6 7 ... 12], you will type
y1=interp1(x,y,x1) | 1 | 2 | 1 | This is probably a very easy question, but all the sources I have found on interpolation in Matlab are trying to correlate two values, all I wanted to benefit from is if I have data which is collected over an 8 hour period, but the time between data points is varying, how do I adjust it such that the time periods are e... | Interpolation Function | 0.07983 | 0 | 0 | 705 |
14,743,431 | 2013-02-07T04:14:00.000 | 0 | 0 | 0 | 0 | python,django,caching | 14,743,602 | 3 | false | 1 | 0 | Yes, Memcached is the right answer. Just take time to do it. | 1 | 1 | 0 | I need to implement some caching mechanism in my Python/Django project. Currently our live site is in Heroku cloud.
Which is the best caching mechanism to use i.e 'Local-memory caching' ,'Filesystem caching' or 'Database caching'? I need to easily implement this in our live heroku cloud environment. One of my friend s... | Caching in Django | 0 | 0 | 0 | 572 |
14,744,178 | 2013-02-07T05:23:00.000 | 0 | 1 | 0 | 0 | python,linux | 14,744,411 | 2 | false | 0 | 0 | In GNU/linux the firewall (netfilter) is part of the kernel, so I think that if linux is on, the firewall is too.
next, you may ask netfilter if it is configured, and if is there any rules. for this you might parse iptables command (such as iptables -L) output. | 1 | 0 | 0 | I want to display whether firewall is present or not.. if it is not enabled, the user should get an alert.. can it be done using python code? | Determining presence of firewall using python on linux | 0 | 0 | 0 | 579 |
14,746,917 | 2013-02-07T08:42:00.000 | 0 | 1 | 1 | 0 | python,ironpython,exe | 14,746,966 | 2 | false | 0 | 0 | I think with py2exe and the .net framework | 2 | 0 | 0 | I'm using the pyc tool to compile IronPython scripts to executables, but can they be run without IronPython installed? If so what do I have to include? | is it possible to run compiled iron python scripts on PCs without iron python installed? | 0 | 0 | 0 | 230 |
14,746,917 | 2013-02-07T08:42:00.000 | 2 | 1 | 1 | 0 | python,ironpython,exe | 14,746,941 | 2 | true | 0 | 0 | Yes, you can run it on other PC's without installing IronPy or Visual Studi (ergo, off the bat).
Sometimes you'd might need the Windows runtime libraries that you compiled the application with, but other then that.. yes you can execute it on any other Windows PC equal to the one your compiled it on.
(example, compiling... | 2 | 0 | 0 | I'm using the pyc tool to compile IronPython scripts to executables, but can they be run without IronPython installed? If so what do I have to include? | is it possible to run compiled iron python scripts on PCs without iron python installed? | 1.2 | 0 | 0 | 230 |
14,751,806 | 2013-02-07T13:05:00.000 | 1 | 0 | 0 | 0 | python,xlrd | 14,854,783 | 2 | false | 0 | 0 | I used the CSV module to figure this out, as it read the cells correctly. | 1 | 2 | 0 | Pretty simple question but haven't been able to find a good answer.
In Excel, I am generating files that need to be automatically read. They are read by an ID number, but the format I get is setting it as text. When using xlrd, I get this format:
5.5112E+12
When I need it in this format:
5511195414392
What is the b... | Reading scientific numbers in xlrd | 0.099668 | 1 | 0 | 1,158 |
14,753,159 | 2013-02-07T14:12:00.000 | 0 | 0 | 0 | 1 | python,ip,resource-leak | 14,754,106 | 1 | false | 0 | 0 | What exactly do you want to do?
As far as I see, you don't count eth0 filehandles, but instead you count all filehandles.
If you just wan't open IP filehandles, you can use lsof (shelltool) under Linux.
lsof -u yourUser | grep IPv4
not just eth0, but I don't know how to filter that for interface. | 1 | 1 | 0 | How to get the network information in Python in both Linux and Windows? I try to use netinfo package (ver 0.3.2) in Python 2.7 on Ubuntu 12.10 64 bit, but the use of this package makes the handles are not closed, as showed below. It is not accepted in my case.
import netinfo
def countOpenFiles():
import resource,... | How read ip address under python without resource leaks | 0 | 0 | 0 | 265 |
14,753,481 | 2013-02-07T14:29:00.000 | 5 | 0 | 1 | 0 | python,list,set,typeerror | 14,753,518 | 3 | true | 0 | 0 | The code if foo in {} checks if any of the keys of the dictionary is equal to foo.
In your example, foo is a list. A list is an unhashable type, and cannot be the key of a dictionary.
If you want to check if any entry of a list is contained in a dictionaries' keys or in a set, you can try:
if any([x in {} for x in (4, ... | 1 | 1 | 0 | I'm trying to run a program which is effectively doing the following:
if [4, 5, False, False, False, False] in {}
And, on this line, I'm getting a TypeError: unhashable type 'list'
What am I doing wrong? | Python TypeError: unhashable type: 'list' | 1.2 | 0 | 0 | 6,798 |
14,753,914 | 2013-02-07T14:48:00.000 | 1 | 0 | 0 | 1 | python,python-2.7,google-drive-api | 14,789,775 | 2 | true | 0 | 0 | I think you have the right idea in your "update". Treat Drive as flat, make calls to list everything, and generate your own tree from that. | 2 | 1 | 0 | Any ideas how to query for all the children and the children of the children in a single query?
Update
It seems like a simple question. I doubt if there is a simple solution?
Quering the tree of folders and files can cost a lot of API calls.
So, to solve my problem, I use a single query to list all the files and folde... | How to list all files, folders, subfolders and subfiles of a Google drive folder | 1.2 | 0 | 0 | 5,009 |
14,753,914 | 2013-02-07T14:48:00.000 | 2 | 0 | 0 | 1 | python,python-2.7,google-drive-api | 14,808,043 | 2 | false | 0 | 0 | I'm trying to do the same in PHP. My solution is:
Retrieve the complete list of files and folders from the drive
Make a double iteration (nested) on the retrieved json:
the first over the elements in "items" array,
the second (recursive) over the parents id of each element,
rejecting all the elements that not contain ... | 2 | 1 | 0 | Any ideas how to query for all the children and the children of the children in a single query?
Update
It seems like a simple question. I doubt if there is a simple solution?
Quering the tree of folders and files can cost a lot of API calls.
So, to solve my problem, I use a single query to list all the files and folde... | How to list all files, folders, subfolders and subfiles of a Google drive folder | 0.197375 | 0 | 0 | 5,009 |
14,754,090 | 2013-02-07T14:56:00.000 | 1 | 0 | 0 | 0 | python,excel,hdf5 | 31,982,266 | 3 | false | 0 | 0 | XlsxWriter work for me. I try openpyxl but it error. 22k*400 r*c | 1 | 8 | 0 | I have really big database which I want write to xlsx/xls file. I already tried to use xlwt, but it allows to write only 65536 rows (some of my tables have more than 72k rows). I also found openpyxl, but it works too slow, and use huge amount of memory for big spreadsheets. Are there any other possibilities to write ex... | How to write big set of data to xls file? | 0.066568 | 1 | 0 | 5,375 |
14,755,062 | 2013-02-07T15:40:00.000 | 2 | 1 | 1 | 0 | python,embed,bytecode | 14,755,102 | 2 | false | 0 | 0 | pyc are not compiled to machine code. Use Shedskin for that. | 2 | 0 | 0 | I have files containing compiled Python bytecode. I want to run them through my executable program without the massive overload of the Python interpreter.
Any ideas? | Is there a light version of Python that only runs .pyc files? | 0.197375 | 0 | 0 | 457 |
14,755,062 | 2013-02-07T15:40:00.000 | 0 | 1 | 1 | 0 | python,embed,bytecode | 14,756,123 | 2 | false | 0 | 0 | You mention the massive overhead of the interpreter: do you have any evidence that the compilation step is massive overhead? You might be misunderstanding what is in a .pyc file. Python bytecode is not machine code, it is very high-level bytecodes that are executed by the Python interpreter.
In any case, no, there is... | 2 | 0 | 0 | I have files containing compiled Python bytecode. I want to run them through my executable program without the massive overload of the Python interpreter.
Any ideas? | Is there a light version of Python that only runs .pyc files? | 0 | 0 | 0 | 457 |
14,755,065 | 2013-02-07T15:40:00.000 | 3 | 1 | 0 | 0 | python,svn,jenkins,continuous-integration,release | 14,828,819 | 2 | true | 1 | 0 | The question is a bit too big to be answered in a simple post, I will therefore try to give a few hints and references as far as I see from my personal view:
A few quick tips:
I like the idea of separating the developers into branches, but I would do the testing on the feature-branch and only merge to the beta branch ... | 1 | 4 | 0 | I am working on a web project with 7 developers. I setup a beta box (debian) so that we can do testing of new code before passing it to staging.
On the beta box, I setup Jenkins and would like to automate the merge/testing process. We also have a test suite which I would like to tie-in somehow.
How should I test and ru... | How should our devs test python SVN branches with Jenkins? | 1.2 | 0 | 0 | 601 |
14,755,187 | 2013-02-07T15:46:00.000 | 3 | 1 | 0 | 0 | python,architecture,ipc,twisted,zeromq | 14,763,596 | 2 | true | 0 | 0 | All of these approaches are possible. I can only speak abstractly because I don't know the precise contours of your application.
If you already have a working application but it just isn't fast enough to handle the number of messages you throw at it, then identify the bottleneck. The two likely causes of your holdup ar... | 1 | 3 | 0 | I'm using twisted to get messages from internet connected sensors in order to store it to a db. I want to check these messages without interfere these process,because I need compare every message with some base values at db, if some is matched I need trigger an alert for this, and the idea is not block any process...
M... | Architecture approach with IPC, Twisted or ZeroMQ? | 1.2 | 0 | 0 | 1,496 |
14,755,882 | 2013-02-07T16:22:00.000 | 0 | 1 | 1 | 0 | python,regex,compilation | 14,756,210 | 3 | false | 0 | 0 | It sounds to me like the author is simply saying it's more efficient to compile a regex and save that than to count on a previously compiled version of it still being held in the module's limited-size internal cache. This is probably because to the amount of effort it takes to compile them plus the extra cache lookup o... | 1 | 4 | 0 | I'm working through Doug Hellman's "The Python Standard Library by Example" and came across this:
"1.3.2 Compiling Expressions
re includes module-level functions for working with regular expressions as text strings, but it is more efficient to compile the expressions a program uses frequently."
I couldn't follow his ex... | Compiling Regular Expressions in Python | 0 | 0 | 0 | 1,111 |
14,756,286 | 2013-02-07T16:40:00.000 | 5 | 0 | 0 | 0 | java,python,ipod | 14,756,354 | 2 | false | 1 | 0 | I believe the transfer protocol between iTunes and ipod is a closed one..and hence dont think there is a publicly available protocol. | 1 | 1 | 0 | Is there an API to copy music (files on disk) to an iPod?
Any language will do, but preferably Java or python. | API to copy music to iPod | 0.462117 | 0 | 0 | 258 |
14,756,365 | 2013-02-07T16:45:00.000 | 1 | 0 | 0 | 0 | python,xml-rpc,openerp | 14,796,657 | 1 | false | 1 | 0 | One way to connect to an external application is to create a connector module. There are already several connector modules that you can take a look at:
the thunderbird and outlook plugins
the joomla and magento modules
the 'event moodle' module
For example, the joomla connector uses a joomla plugin to handle the comm... | 1 | 1 | 0 | How would one go about connecting to a different database based on which module is being used? Our scenario is as follows:
We have a standalone application with its own database on a certain server and OpenERP running on different server. We want to create a module in OpenERP which can utilise entities on the standalon... | How to connect to a different database in OpenERP? | 0.197375 | 1 | 0 | 1,877 |
14,757,199 | 2013-02-07T17:25:00.000 | 0 | 0 | 0 | 0 | python,rabbitmq | 14,757,404 | 3 | false | 0 | 0 | The q in rabbit mq stands for queue. This means that all messages placed in the queue, in your case the producers random numbers, will remain in the queue until someone comes to get them. | 2 | 0 | 0 | suppose i have a producer on rabbitmq server which will generate a random number and pass it to the consumer. Consumer will receive all the random-numbers from producer. If i will kill my consumer process, what will producer do in this situation? whether it will continuously generate the number and when ever the consum... | Rabbitmq server working | 0 | 0 | 0 | 151 |
14,757,199 | 2013-02-07T17:25:00.000 | 1 | 0 | 0 | 0 | python,rabbitmq | 14,771,469 | 3 | false | 0 | 0 | To fully embrace the functionality you need to understand how the rabbitmq broker works with exchanges. I believe this will solve your problem.
Instead of sending to a single queue you will create an exchange. The producer sends to the exchange. In this state with no queues at this point the messages will be discarded... | 2 | 0 | 0 | suppose i have a producer on rabbitmq server which will generate a random number and pass it to the consumer. Consumer will receive all the random-numbers from producer. If i will kill my consumer process, what will producer do in this situation? whether it will continuously generate the number and when ever the consum... | Rabbitmq server working | 0.066568 | 0 | 0 | 151 |
14,758,024 | 2013-02-07T18:10:00.000 | 1 | 0 | 0 | 0 | python,django,pip,psycopg2,psycopg | 15,337,328 | 2 | true | 1 | 0 | This was solved by performing a clean reinstall of django. There was apparently some dependecies missing that the recursive pip install did not seem to be able to solve. | 1 | 2 | 0 | I have pip installed psycopg2, but when I try to runserver or syncdb in my Django project, it raises an error saying there is "no module named _psycopg".
EDIT: the "syncdb" command now raises:
django.core.exceptions.ImproperlyConfigured: ImportError django.contrib.admin: No module named _psycopg
Thanks for your help | Psycopg missing module in Django | 1.2 | 1 | 0 | 1,586 |
14,760,751 | 2013-02-07T20:50:00.000 | 0 | 1 | 0 | 0 | python,selenium,webdriver,selenium-webdriver | 21,198,235 | 1 | false | 0 | 0 | I've experienced similar problems before with Firefox. The rare times that we managed to catch a machine in the act it was just not closing browser sessions. Hence the BSOD eventually. Obviously this was a bug in either webdriver, firefox, or XP (which we were also using). We solved it by aggressively killing every fir... | 1 | 6 | 0 | We run a bunch of Python test scripts on a group of test stations. The test scripts interface with hardware units on these test stations, so we're stuck running one test script at a time per station (we can't virtualize everything). We built a tool to assign tests to different stations and report test results - this ... | Python selenium webdriver tests causing "serious error" when run in large batches on windows XP | 0 | 0 | 1 | 855 |
14,763,722 | 2013-02-08T00:29:00.000 | 1 | 0 | 1 | 0 | python,modulo | 14,763,823 | 3 | false | 0 | 0 | It has to do with the inexact nature of floating point arithmetic. 3.5 % 0.1 gets me 0.099999999999999811, so Python is thinking that 0.1 divides into 3.5 at most 34 times, with 0.099999999999999811 left over. I'm not sure exactly what algorithm is being used to achieve this result, but that's the gist. | 1 | 48 | 0 | Can anyone explain how the modulo operator works in Python?
I cannot understand why 3.5 % 0.1 = 0.1. | Python modulo on floats | 0.066568 | 0 | 0 | 65,966 |
14,767,077 | 2013-02-08T06:38:00.000 | 0 | 0 | 1 | 0 | python | 14,767,542 | 3 | false | 0 | 0 | Try to reduce your functions as much as possible, and reuse them.
For example you might have a function next_prime which is called repeatedly by n_primes and n_th_prime.
This also makes your code more maintainable, as if you come up with a more efficient way to count primes, all you do is change the code in next_prime.... | 2 | 4 | 0 | I find myself constantly having to change and adapt old code back and forth repeatedly for different purposes, but occasionally to implement the same purpose it had two versions ago.
One example of this is a function which deals with prime numbers. Sometimes what I need from it is a list of n primes. Sometimes what I... | Writing reusable code | 0 | 0 | 0 | 2,359 |
14,767,077 | 2013-02-08T06:38:00.000 | 0 | 0 | 1 | 0 | python | 14,767,171 | 3 | false | 0 | 0 | My guess, create module that contain:
private core function (example: return list of n-th first primes or even something more generall)
several wrapper/util functions that use core one and prepare output different ways. (example: n-th prime number) | 2 | 4 | 0 | I find myself constantly having to change and adapt old code back and forth repeatedly for different purposes, but occasionally to implement the same purpose it had two versions ago.
One example of this is a function which deals with prime numbers. Sometimes what I need from it is a list of n primes. Sometimes what I... | Writing reusable code | 0 | 0 | 0 | 2,359 |
14,770,972 | 2013-02-08T10:55:00.000 | 2 | 0 | 0 | 0 | python,django,apache,caching,memcached | 14,770,990 | 3 | false | 1 | 0 | You have to restart your server (WSGI, UWSGI or whatever your use on production environment) | 1 | 11 | 0 | I changed a .py file and changes reflected on local dev. server for Django after deleting .pyc.
The production server does not even have .pyc for this specific file. Tried touching apache wsgi and restarting apache on prod. server but no luck.
Even deleting this .py file makes application work the same. There is memca... | Django code changes not reflecting on production server | 0.132549 | 0 | 0 | 6,659 |
14,776,751 | 2013-02-08T16:11:00.000 | 2 | 0 | 0 | 0 | python,amazon-web-services,boto,amazon-sqs | 14,778,171 | 2 | false | 0 | 0 | Long polling is more efficient because it allows you to leave the HTTP connection open for a period of time while you wait for more results. However, you can still do your own polling in boto by just setting up a loop and waiting for some period of time between reading the queue. You can still get good overall throug... | 1 | 3 | 0 | I am very new to AWS SQS queues and I am currently playing around with boto. I noticed that when I try to read a queue filled with messages in a while loop, I see that after 10-25 messages are read, the queue does not return any message (even though the queue has more than 1000+ messages). It starts populating another ... | Reading data consecutively in a AWS SQS queue | 0.197375 | 0 | 1 | 1,560 |
14,778,178 | 2013-02-08T17:35:00.000 | 9 | 0 | 1 | 0 | module,python-3.x | 50,516,261 | 10 | false | 0 | 0 | You need to add YourPythonPath\Library\bin to your PATH environment variable. In my case it is C:\Python36-64\Library\bin | 5 | 13 | 0 | I'm new to Python, just installed cvxopt module for my Python3.3 system (64 bit). The installation was successful, but when I typed "import cvxopt" in Python command line, it returned an error:
File "C:\Program Files
(x86)\Python\lib\site-packages\cvxopt__init__.py", line 33, in
import cvxopt.base ImportError: DL... | import cvxopt.base: the specified module could not be found | 1 | 0 | 0 | 18,458 |
14,778,178 | 2013-02-08T17:35:00.000 | 0 | 0 | 1 | 0 | module,python-3.x | 48,837,788 | 10 | false | 0 | 0 | I had the same issue of ImportError while importing cvxopt module. Since cvxopt supports python version 2.7-3.5, I created a conda virtual environment first with python 3.5 using the steps below:
open Anaconda Prompt
conda create -n python=3.5
conda activate
In the activated conda environment install cvxopt package... | 5 | 13 | 0 | I'm new to Python, just installed cvxopt module for my Python3.3 system (64 bit). The installation was successful, but when I typed "import cvxopt" in Python command line, it returned an error:
File "C:\Program Files
(x86)\Python\lib\site-packages\cvxopt__init__.py", line 33, in
import cvxopt.base ImportError: DL... | import cvxopt.base: the specified module could not be found | 0 | 0 | 0 | 18,458 |
14,778,178 | 2013-02-08T17:35:00.000 | 0 | 0 | 1 | 0 | module,python-3.x | 49,500,660 | 10 | false | 0 | 0 | I had the same issue and what fixed it was to move to python 3.5 (by creating a virtual environment). Note that cvxopt does not work unfortunately with python 3.6. | 5 | 13 | 0 | I'm new to Python, just installed cvxopt module for my Python3.3 system (64 bit). The installation was successful, but when I typed "import cvxopt" in Python command line, it returned an error:
File "C:\Program Files
(x86)\Python\lib\site-packages\cvxopt__init__.py", line 33, in
import cvxopt.base ImportError: DL... | import cvxopt.base: the specified module could not be found | 0 | 0 | 0 | 18,458 |
14,778,178 | 2013-02-08T17:35:00.000 | 0 | 0 | 1 | 0 | module,python-3.x | 58,593,980 | 10 | false | 0 | 0 | Open the System Properties window and click on the Advanced tab.
Click the Environment Variables button at the bottom.
In the User variables section, select Path and click Edit.
Add the directory that contains mkl_rt.dll to the path. | 5 | 13 | 0 | I'm new to Python, just installed cvxopt module for my Python3.3 system (64 bit). The installation was successful, but when I typed "import cvxopt" in Python command line, it returned an error:
File "C:\Program Files
(x86)\Python\lib\site-packages\cvxopt__init__.py", line 33, in
import cvxopt.base ImportError: DL... | import cvxopt.base: the specified module could not be found | 0 | 0 | 0 | 18,458 |
14,778,178 | 2013-02-08T17:35:00.000 | 1 | 0 | 1 | 0 | module,python-3.x | 50,691,143 | 10 | false | 0 | 0 | I fixed it. Just add path C:\Python36\Library\bin to PATH environment variable the same as Artashes Khachatryan said.
When I imported cvxopt library, it run base.cp36-win_amd64 file and this file requires dll in bin folder. | 5 | 13 | 0 | I'm new to Python, just installed cvxopt module for my Python3.3 system (64 bit). The installation was successful, but when I typed "import cvxopt" in Python command line, it returned an error:
File "C:\Program Files
(x86)\Python\lib\site-packages\cvxopt__init__.py", line 33, in
import cvxopt.base ImportError: DL... | import cvxopt.base: the specified module could not be found | 0.019997 | 0 | 0 | 18,458 |
14,779,216 | 2013-02-08T18:40:00.000 | 22 | 0 | 0 | 0 | php,python,blowfish,sha-3,keccak | 14,862,876 | 3 | false | 0 | 0 | short answer:
No, and probably never. For password hashing, BCrypt & PBKDF2-HMAC-xxx are better choices than any simple SHA-1/2/3 algorithm. And until SHA-1/2 actual have feasible preimage attacks published, SHA-3 is actually the worst choice, specifically because of it's speed and low cache footprint.
longer answer:
A... | 1 | 3 | 0 | The winner of SHA-3 hashing algorithm contest has been chosen. The winner's algorithm is Keccak.
I use Blowfish and really like it, but Keccak is said to be better. Is it worth to use it for storing user's passwords on my website?
If yes, are there any implementations of Keccak for PHP, Python, Ruby or any other langua... | Password hashing: Keccak or not | 1 | 0 | 0 | 3,026 |
14,780,381 | 2013-02-08T19:58:00.000 | 1 | 0 | 1 | 0 | python,performance,mongodb | 14,780,990 | 2 | true | 0 | 0 | I'll address the three points separately. You should know that it absolutely depends on the situation on what works best. There is no "theoretically correct" answer as it depends on your data store/access patterns.
It is always a fairly complex decision on how you store your data. I think the main rule should be "How ... | 1 | 0 | 0 | TLDR; Are there drawbacks to putting two different types of documents into the same collection to save a round-trip to the database?
So I have documents with children, and a list of keys in the parent referencing the children, and almost whenever we want a parent, we also want the children to come along. The naive way ... | Put different "schemas" into same MongoDB collection | 1.2 | 1 | 0 | 339 |
14,780,533 | 2013-02-08T20:09:00.000 | 3 | 0 | 1 | 0 | python | 14,780,579 | 4 | false | 0 | 0 | You have to escape \n somehow
Either just the sequence
print "\\n"
or mark whole string as raw
print r"\n" | 1 | 0 | 0 | I want to print the actual following string: \n , but everything I tried just reads it in takes it as a new line operator.. how do I just print the following: \n ? | How to print the string "\n" | 0.148885 | 0 | 0 | 213 |
14,786,072 | 2013-02-09T07:49:00.000 | 2 | 1 | 0 | 0 | python,django,settings | 53,798,521 | 7 | false | 1 | 0 | Here's one way to do it that is compatible with deployment on Heroku:
Create a gitignored file named .env containing:
export DJANGO_SECRET_KEY = 'replace-this-with-the-secret-key'
Then edit settings.py to remove the actual SECRET_KEY and add this instead:
SECRET_KEY = os.environ['DJANGO_SECRET_KEY']
Then when you want... | 4 | 29 | 0 | One of the causes of the local_settings.py anti-pattern is that putting SECRET_KEY, AWS
keys, etc.. values into settings files has problem:
Secrets often should be just that: secret! Keeping them in version control means
that everyone with repository access has access to them.
My question is how to keep all keys as s... | Keep Secret Keys Out | 0.057081 | 0 | 0 | 26,432 |
14,786,072 | 2013-02-09T07:49:00.000 | 6 | 1 | 0 | 0 | python,django,settings | 14,786,575 | 7 | false | 1 | 0 | Store your local_settings.py data in a file encrypted with GPG - preferably as strictly key=value lines which you parse and assign to a dict (the other attractive approach would be to have it as executable python, but executable code in config files makes me shiver).
There's a python gpg module so that's not a problem.... | 4 | 29 | 0 | One of the causes of the local_settings.py anti-pattern is that putting SECRET_KEY, AWS
keys, etc.. values into settings files has problem:
Secrets often should be just that: secret! Keeping them in version control means
that everyone with repository access has access to them.
My question is how to keep all keys as s... | Keep Secret Keys Out | 1 | 0 | 0 | 26,432 |
14,786,072 | 2013-02-09T07:49:00.000 | 5 | 1 | 0 | 0 | python,django,settings | 14,786,114 | 7 | false | 1 | 0 | Ideally, local_settings.py should not be checked in for production/deployed server. You can keep backup copy somewhere else, but not in source control.
local_settings.py can be checked in with development configuration just for convenience, so that each developer need to change it.
Does that solve your problem? | 4 | 29 | 0 | One of the causes of the local_settings.py anti-pattern is that putting SECRET_KEY, AWS
keys, etc.. values into settings files has problem:
Secrets often should be just that: secret! Keeping them in version control means
that everyone with repository access has access to them.
My question is how to keep all keys as s... | Keep Secret Keys Out | 0.141893 | 0 | 0 | 26,432 |
14,786,072 | 2013-02-09T07:49:00.000 | 0 | 1 | 0 | 0 | python,django,settings | 46,735,039 | 7 | false | 1 | 0 | You may need to use os.environ.get("SOME_SECRET_KEY") | 4 | 29 | 0 | One of the causes of the local_settings.py anti-pattern is that putting SECRET_KEY, AWS
keys, etc.. values into settings files has problem:
Secrets often should be just that: secret! Keeping them in version control means
that everyone with repository access has access to them.
My question is how to keep all keys as s... | Keep Secret Keys Out | 0 | 0 | 0 | 26,432 |
14,795,546 | 2013-02-10T07:06:00.000 | 1 | 0 | 1 | 0 | python | 14,795,563 | 6 | false | 0 | 0 | Class dict is shared among all the instances (objects) of the class, while each instance (object) has its own separate copy of instance dict. | 1 | 5 | 0 | I was reading the python descriptors and there was one line there
Python first looks for the member in the instance dictionary. If it's
not found, it looks for it in the class dictionary.
I am really confused what is instance dict and what is class dictionary
Can anyone please explain me with code what is that
I wa... | What is the dfifference between instance dict and class dict | 0.033321 | 0 | 0 | 9,723 |
14,795,810 | 2013-02-10T07:53:00.000 | 0 | 0 | 0 | 0 | python,sql,database,text | 14,797,390 | 2 | false | 0 | 0 | What I've done before is create SQLite databases from txt files which were created from database extracts, one SQLite db for each day.
One can query across SQLite db to check the values etc and create additional tables of data.
I added an additional column of data that was the SHA1 of the text line so that I could easi... | 2 | 2 | 0 | My python project involves an externally provided database: A text file of approximately 100K lines.
This file will be updated daily.
Should I load it into an SQL database, and deal with the diff daily? Or is there an effective way to "query" this text file?
ADDITIONAL INFO:
Each "entry", or line, contains three field... | Large text database: Convert to SQL or use as is | 0 | 1 | 0 | 336 |
14,795,810 | 2013-02-10T07:53:00.000 | 1 | 0 | 0 | 0 | python,sql,database,text | 14,795,870 | 2 | false | 0 | 0 | How often will the data be queried? On the one extreme, if once per day, you might use a sequential search more efficiently than maintaining a database or index.
For more queries and a daily update, you could build and maintain your own index for more efficient queries. Most likely, it would be worth a negligible (if a... | 2 | 2 | 0 | My python project involves an externally provided database: A text file of approximately 100K lines.
This file will be updated daily.
Should I load it into an SQL database, and deal with the diff daily? Or is there an effective way to "query" this text file?
ADDITIONAL INFO:
Each "entry", or line, contains three field... | Large text database: Convert to SQL or use as is | 0.099668 | 1 | 0 | 336 |
14,797,375 | 2013-02-10T11:43:00.000 | 4 | 0 | 1 | 0 | python,exception,pep8 | 14,797,389 | 7 | false | 0 | 0 | You will also catch e.g. Control-C with that, so don't do it unless you "throw" it again. However, in that case you should rather use "finally". | 4 | 103 | 0 | When using PyCharm IDE the use of except: without an exception type triggers a reminder from the IDE that this exception clause is Too broad.
Should I be ignoring this advice? Or is it Pythonic to always specific the exception type? | Should I always specify an exception type in `except` statements? | 0.113791 | 0 | 0 | 86,239 |
14,797,375 | 2013-02-10T11:43:00.000 | 4 | 0 | 1 | 0 | python,exception,pep8 | 42,745,424 | 7 | false | 0 | 0 | Here are the places where i use except without type
quick and dirty prototyping
That's the main use in my code for unchecked exceptions
top level main() function, where i log every uncaught exception
I always add this, so that production code does not spill stacktraces
between application layers
I have two ways ... | 4 | 103 | 0 | When using PyCharm IDE the use of except: without an exception type triggers a reminder from the IDE that this exception clause is Too broad.
Should I be ignoring this advice? Or is it Pythonic to always specific the exception type? | Should I always specify an exception type in `except` statements? | 0.113791 | 0 | 0 | 86,239 |
14,797,375 | 2013-02-10T11:43:00.000 | 9 | 0 | 1 | 0 | python,exception,pep8 | 14,797,648 | 7 | false | 0 | 0 | Not specfic to Python this.
The whole point of exceptions is to deal with the problem as close to where it was caused as possible.
So you keep the code that could in exceptional cirumstances could trigger the problem and the resolution "next" to each other.
The thing is you can't know all the exceptions that could be t... | 4 | 103 | 0 | When using PyCharm IDE the use of except: without an exception type triggers a reminder from the IDE that this exception clause is Too broad.
Should I be ignoring this advice? Or is it Pythonic to always specific the exception type? | Should I always specify an exception type in `except` statements? | 1 | 0 | 0 | 86,239 |
14,797,375 | 2013-02-10T11:43:00.000 | 4 | 0 | 1 | 0 | python,exception,pep8 | 14,797,393 | 7 | false | 0 | 0 | Always specify the exception type, there are many types you don't want to catch, like SyntaxError, KeyboardInterrupt, MemoryError etc. | 4 | 103 | 0 | When using PyCharm IDE the use of except: without an exception type triggers a reminder from the IDE that this exception clause is Too broad.
Should I be ignoring this advice? Or is it Pythonic to always specific the exception type? | Should I always specify an exception type in `except` statements? | 0.113791 | 0 | 0 | 86,239 |
14,797,686 | 2013-02-10T12:24:00.000 | 0 | 0 | 1 | 0 | python | 14,797,711 | 4 | false | 0 | 0 | Lambdas are used when they're needed, when they make the code more concise but not less clear, and so on. They're not really in competition with list comprehensions (or any other comprehensions). If you find something less readable in Python, chances are you should change it to something you find more readable. | 1 | 1 | 0 | I'm just starting out as a Python programmer. While doing the Python challenge I learn a lot about the language by looking at other peoples' solutions after I've solved them myself.
I see lambda functions all over the place. They seem easy, but also a bit less readable (at least for me now).
Is there any value in using... | Is there any reason to use a lambda function over e.g a list comprehension? | 0 | 0 | 0 | 154 |
14,799,847 | 2013-02-10T16:27:00.000 | 9 | 1 | 0 | 0 | php,python,passwords,password-protection,password-encryption | 14,799,899 | 2 | true | 0 | 0 | Forget this idea. Hashing the password on the client, sending the hash to the server and then compare it to the stored hash is equivalent to storing plain passwords in the database, because the hash becomes the password.
Or should I just invest in https?
Yes! | 1 | 0 | 0 | I am currently building a web/desktop application. The user can create an account online and login either online or via the desktop client.
The client will be built in Python and exported to exe.
I want to encrypt the password before it is sent online as the site has no https connection.
What is the best way to do thi... | Password protection for Python and PHP | 1.2 | 0 | 0 | 240 |
14,800,708 | 2013-02-10T17:51:00.000 | 0 | 0 | 1 | 0 | python,python-2.7,pyscripter | 14,800,809 | 2 | false | 0 | 0 | python is just kind off a simple language, it does not need variable declaration for example.
But it's better that it automatically asks your input instead that you have to write the code for starting the variable | 1 | 0 | 0 | I am using the PyScripter integrated development environment and taking courses using Python 2.7.
Why does number = input("some input text") immediately display the python input dialog when the program is ran? Wouldn't we have to execute it? Because really, it's just setting a variable to a python input. It never says ... | PyScripter - Why does this work? | 0 | 0 | 0 | 324 |
14,801,979 | 2013-02-10T19:58:00.000 | 3 | 0 | 0 | 1 | python,virtualenv,zeromq | 14,801,987 | 1 | false | 0 | 0 | Once you make your virtualenv and activate it, use pip to install Python packages. They will install into your virtualenv.
Alternately, when you create your virtualenv, enable system-wide packages (with the --system-site-packages switch) within it so that system-installed packages will be visible in the virtualenv. | 1 | 3 | 0 | I was able to install 0MQ in Ubuntu 12.04 by doing the followinng:
$ sudo apt-get install libzmq-dev
$ sudo apt-get install python-zmq
but when I went to use it in a virtualenv it could not find the module. What do I have to do in my virtualenv to see it | 0MQ in virtualenv | 0.53705 | 0 | 0 | 247 |
14,802,057 | 2013-02-10T20:06:00.000 | 10 | 0 | 1 | 0 | python,multithreading,python-2.7 | 14,802,065 | 2 | true | 0 | 0 | You can call the same function from both threads. The issue to be aware of is modifying shared data from two threads at once. If the function attempts to modify the same data from both threads, you will end up with an unpredictable program.
So the answer to your question is, "it depends what the function does."
It ce... | 1 | 3 | 0 | Basic using threads question here.
I'm modifying a program with 2 thread classes and I'd like to use a function defined in one class in both classes now.
As a thread newbie (only been playing with them for a few months) is it OK to move the function out of the thread class into the main program and just call it from bo... | Two threads using same function | 1.2 | 0 | 0 | 3,910 |
14,802,197 | 2013-02-10T20:21:00.000 | 7 | 1 | 0 | 0 | python,pyramid | 14,802,581 | 1 | true | 1 | 0 | No, that is not possible to determine with server-side code only. Browsers do not share that information when making HTTP requests to the server.
You'll have to do this with JavaScript. | 1 | 1 | 0 | Is it possible to get the user's browser width and height in Pyramid? I've searched through the response object and Googled.
If it's not available in Pyramid, I'll just grab it in javascript | Can I get the browser width and height in Pyramid? | 1.2 | 0 | 0 | 118 |
14,804,291 | 2013-02-11T00:27:00.000 | 0 | 0 | 1 | 0 | c#,python,.net,sorting,hash | 14,804,387 | 2 | false | 0 | 0 | Hash codes aren't meant to be unique for unequal objects - there typically will be some collisions. They definitely can't be used to test for equality.
Hash codes are used to place objects (hopefully) evenly across a data structure. If you want to test for equality, test whether the coordinates are equal. | 1 | 0 | 0 | I have some points in space where each point has an id. I also have a subset of these points in another group that have different id values.
How can I create a new type of id for both groups of points so that the points that have the same coordinates end up using the same id values?
I assume I need to generate hash cod... | How to match arbitrary data using hash codes? | 0 | 0 | 0 | 124 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.