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 |
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13,134,353 | 2012-10-30T07:19:00.000 | 4 | 0 | 0 | 0 | python,encoding,openerp | 13,135,341 | 1 | false | 1 | 0 | The comment # -*- coding: utf-8 -*- tells the python parser the encoding of the source file. It affects how the bytecode compiler converts unicode literals in the source code. It has no effect on the runtime environment.
You should explicitly define the encoding when converting strings to unicode. If you are getting U... | 1 | 0 | 0 | Do you guys know how to change the default encoding of an openerp file?
I've tried adding # -*- coding: utf-8 -*- but it doesn't work (is there a setup that ignore this command? just a wild guess). When I try to execute sys.getdefaultencoding() still its in ASCII.
Regards | Setting default encoding Openerp/Python | 0.664037 | 0 | 0 | 803 |
13,136,828 | 2012-10-30T10:15:00.000 | 0 | 0 | 1 | 0 | python,3d,geometry | 13,242,515 | 2 | false | 0 | 0 | I'll assume the "geometry library for python" already answered in the comments on the question. So once you have a transformation that takes 'a' parallel to 'b', you'll just apply it to 'c'
The vectors 'a' and 'b' uniquely define a plane. Each vector has a canonical representation as a point difference from the origin,... | 1 | 1 | 1 | I have three vectors in 3D a,b,c. Now I want to calculate a rotation r that when applied to a yields a result parallel to b. Then the rotation r needs to be applied to c.
How do I do this in python? Is it possible to do this with numpy/scipy? | Rotations in 3D | 0 | 0 | 0 | 1,659 |
13,136,885 | 2012-10-30T10:18:00.000 | 1 | 0 | 0 | 1 | python,ssh,cloud-foundry | 13,139,010 | 1 | false | 1 | 0 | I assume you mean get the result from outside of CloudFoundry (i.e. not one app launching another app and getting result, stdout and stderr).
You can only access CloudFoundry apps over http(s), so you would have to find a way to wrap your invocation into something that exposes everything you need as http. | 1 | 2 | 0 | We need to run arbitrary commands on cloudfoundry. (The deployed apps are Python/Django, but the language for this solution does not matter). Ideally over ssh, but the protocol does not matter.
We need a reliable way to get the exit code of the command that was run, as well as its stderr and stdout. If possible, the co... | How to run a command on an app and get the exit code on cloudfoundry | 0.197375 | 0 | 0 | 127 |
13,137,341 | 2012-10-30T10:46:00.000 | 2 | 1 | 0 | 0 | android,python,sl4a,android-scripting | 13,215,655 | 1 | true | 0 | 1 | No, because the SL4A package provides the facade to make device API calls, acting as a middleman. Without it you might be able to import it, but you could not be able to make any API calls. | 1 | 2 | 0 | Is there a way to use android.py module without installing SL4A?
I mean I have Python running on android successfully from Terminal Emulator.
Can I use that module without installing that layer (or if I can't install it anymore)? | Using Python android.py module without SL4A | 1.2 | 0 | 0 | 1,256 |
13,138,077 | 2012-10-30T11:30:00.000 | 7 | 0 | 1 | 1 | python,pip,package-managers | 13,138,198 | 1 | true | 0 | 0 | There are two main reasons that Pythonistas generally recommend pip. The first is that it is the one package manager that is pretty much guaranteed to come with a Python installation, and therefore, independent of the OS on which you are using it. This makes it easier to provide instructions that work on Windows and OS... | 1 | 5 | 0 | When reading tutorials and readmes I often see people advertising to install python packages with pip, even when they are using an operating system, which has a nice package manager like apt. Yet in real life I only met people who would only install things with their OS's package manager, reasoning that this package ma... | Why do pythonics prefer pip over their OS's package managers? | 1.2 | 0 | 0 | 207 |
13,139,192 | 2012-10-30T12:40:00.000 | 0 | 0 | 0 | 0 | python,django,templates,view | 13,139,288 | 2 | false | 1 | 0 | Map an url to that view. Redirect to that url from template. | 1 | 1 | 0 | I want to call a Django view from a Django template. Is there a tag to do that ?
For example, I want to create a view which manage my login form. So basically, this view will be used just to send the Django form to the html template.
Thank you for your help. | Call Django view from a template | 0 | 0 | 0 | 1,663 |
13,139,949 | 2012-10-30T13:22:00.000 | 1 | 1 | 0 | 0 | python,xlrd | 13,562,703 | 2 | true | 0 | 0 | Apart from the username (last person to save the worksheet) the Book instance as returned by open_workbook does not seem to have any properties.
I recursively dumped the Book ( dumping its dict if a xlrd.BaseObject) and could not find anything in that way. The test files for sure had
an author, company and some custom... | 1 | 4 | 0 | Is there a way to read the excel file properties using xlrd?
I refer not to cell presentation properties, but general workbook properties.
Thanks a lot in advance. | Read workbook properties using python and xlrd | 1.2 | 0 | 0 | 1,896 |
13,140,185 | 2012-10-30T13:34:00.000 | 0 | 0 | 1 | 0 | python,lxml | 13,355,413 | 2 | true | 0 | 0 | iterparse() is strictly forward-only, I'm afraid. If you want to read a tree in reverse, you'll have to read it forward, while writing it to some intermediate store (be it in memory or on disc) in some form that's easier for you to parse backwards, and then read that. I'm not aware of any stream parsers that allow XML... | 1 | 1 | 0 | I am parsing a large file (>9GB) and am using iterparse of lxml in Python to parse the file while clearing as I go forward. I was wondering, is there a way to parse backwards while clearing? I could see I how would implement this independently of lxml, but it would be nice to use this package.
Thank you in advance! | lxml, parsing in reverse | 1.2 | 0 | 1 | 1,552 |
13,140,539 | 2012-10-30T13:54:00.000 | 1 | 0 | 1 | 0 | python,mercurial,centos | 13,142,315 | 1 | false | 0 | 0 | You should not have messed with your system Python --
it is incrdible you can still login at all. Python 2.4 is ancient, but it is what is used in a lot of CentOS versions in the wild - what is installed by it's package management. Maybe you had installed a ",meta package" taht upgrades the system Python to 2.6, along... | 1 | 0 | 0 | I try to install mercurial on a centos vps-server with "yum install mercurial" but it says it needs python2.4 in order to install it. I have python2.6 installed. Is there a way to get past this? | Mercurial and python 2.6 | 0.197375 | 0 | 0 | 591 |
13,141,796 | 2012-10-30T15:01:00.000 | 0 | 0 | 1 | 0 | python,app-store,semantics,feedback,google-prediction | 13,392,517 | 1 | false | 0 | 0 | You can use the Google Prediction API to characterize your comments as important or unimportant. What you'd want to do is manually classify a subset of your comments. Then you upload the manually classified model to Google Cloud Storage and, using the Prediction API, train your model. This step is asynchronous and can ... | 1 | 1 | 0 | I have received tens of thousands of user reviews on the app.
I know the meaning of many of the comments are the same.
I can not read all these comments.
Therefore, I would like to use a python program to analyze all comments,
Identify the most frequently the most important feedback information.
I would like to ask, ho... | How to automatic classification of app user reviews? | 0 | 0 | 0 | 235 |
13,142,676 | 2012-10-30T15:44:00.000 | 7 | 0 | 1 | 0 | python,ipython | 13,144,541 | 1 | true | 0 | 0 | I believe the flag you're looking for is --notebook-dir=/home/foo/wherever. I found this by running ipython notebook --help.
Navigating directories while the server is running is still 'coming', unfortunately. It's one of those things that will need to be done the right way, and the people who can do it (which doesn't ... | 1 | 4 | 0 | A previous question, "Multiple directories and/or subdirectories in IPython Notebook session," asked about directory traversal. The answer given was that the feature is coming. I have also seen a command line flag that starts the server in a specific directory. I can no longer find this post. The flag is not mentioned ... | IPython notebook directory traversal | 1.2 | 0 | 0 | 1,657 |
13,144,158 | 2012-10-30T17:05:00.000 | 2 | 0 | 0 | 0 | python,gis,geospatial,shapely | 63,239,049 | 6 | false | 0 | 1 | I tried the method of @jozef but failed even I imported the folder to the path.
A straightforward solution: add geos_c.dll, geos.dll to the library folder of your python environment. Then it works. | 2 | 23 | 0 | When trying to install Shapely on my Windows 64bit computer, I cannot get the GEOS library to work.
So far, I have run the OSGeo4W installer from which I installed GDAL (I believe the geos library is included in that package). After that, I checked and I have geos_c.dll on my C:\OSGeo4W\bin directory, but either I hav... | Python, GEOS and Shapely on Windows 64 | 0.066568 | 0 | 0 | 49,925 |
13,144,158 | 2012-10-30T17:05:00.000 | 1 | 0 | 0 | 0 | python,gis,geospatial,shapely | 59,217,091 | 6 | false | 0 | 1 | I used the command below and it did work;
pip install Shapely==1.3.0 | 2 | 23 | 0 | When trying to install Shapely on my Windows 64bit computer, I cannot get the GEOS library to work.
So far, I have run the OSGeo4W installer from which I installed GDAL (I believe the geos library is included in that package). After that, I checked and I have geos_c.dll on my C:\OSGeo4W\bin directory, but either I hav... | Python, GEOS and Shapely on Windows 64 | 0.033321 | 0 | 0 | 49,925 |
13,145,282 | 2012-10-30T18:18:00.000 | 2 | 0 | 0 | 0 | python,django | 13,145,394 | 1 | true | 1 | 0 | Short answer: no.
The longer version is that it really depends on how your application is deployed. In Java for example, it's not Spring (the equivalent of Django in this analogy) that gives you an onStart hook, it's Tomcat or Jetty.
The usual interface for deploying Django, WSGI, doesn't define such hooks. A WSGI proc... | 1 | 0 | 0 | I am trying to understand if there are standard means to handle the specific django application start (and reload). Currenly I would like to use it to start a parallel thread, but the question for me is more general: is this allowed or not allowed for some reason.
For example, such handlers are a part of the applicatio... | Django app life cycle: standart hooks to handle start and reload? | 1.2 | 0 | 0 | 925 |
13,148,512 | 2012-10-30T22:29:00.000 | 3 | 0 | 0 | 1 | python,google-app-engine | 13,638,216 | 2 | false | 1 | 0 | A similiar issue happens with appcfg.py in SDK 1.73, where it skips uploading some files sometimes. It looks like this only happens if appcfg.py is run under python 2.7.
The workaround is to simply run appcfg.py under python 2.5. Then the upload works reliably.
The code uploaded can still be 2.7 specific - it is only ... | 1 | 3 | 0 | I just updated to SDK 1.7.3 running on Linux. At the same time I switched to the SQLite datastore stub, suggested by the depreciation message.
After this, edits to source files are not always detected, and I have to stop and restart the SDK after updating, probably one time in ten. Is anyone else seeing this? Any ideas... | Appengine SDK 1.7.3 not detecting updated files | 0.291313 | 0 | 0 | 294 |
13,149,663 | 2012-10-31T00:41:00.000 | 2 | 0 | 0 | 1 | python,google-app-engine | 13,151,123 | 2 | false | 1 | 0 | If comments are threaded, storing them as separate entities might make sense.
If comments can be the target of voting, storing them as separate entities makes sense.
If comments can be edited, storing them as separate entities reduces contention, and avoids having to either do pessimistic locking on all comments, or ri... | 1 | 2 | 0 | With Google App Engine, an entity is limited to 1 MB in size. Say I have a blog system, and expect thousands of comments on each article, some paragraphs in lengths. Typically, without a limit, you'd just store all the comments in the same entity as the blog post. But here, there would be concerns about reaching the 1 ... | Efficient way to store comments in Google App Engine? | 0.197375 | 0 | 0 | 171 |
13,150,020 | 2012-10-31T01:28:00.000 | 2 | 0 | 0 | 0 | python,numpy | 13,150,059 | 2 | false | 0 | 0 | Add columns to ndarray(or matrix) need full copy of the content, so you should use other method such as list or the array module, or create a large matrix first, and fill data in it. | 1 | 1 | 1 | My objective is to start with an "empty" matrix and repeatedly add columns to it until I have a large matrix. | Is it possible to create a numpy matrix with 10 rows and 0 columns? | 0.197375 | 0 | 0 | 255 |
13,150,497 | 2012-10-31T02:39:00.000 | 0 | 0 | 0 | 0 | python,user-interface,mouseevent,pyqt4,global | 13,151,661 | 2 | true | 0 | 1 | I've assumed this isn't possible and am instead using pyHook,
letting Qt pump the messages. | 1 | 0 | 0 | A part of a small project I am working on involves 'calibrating' the coordinates of the screen of which to take a screen capture of.
By the 'screen', I refer to the entire desktop, not my GUI window.
The coordinates are calibrated when a QDialog window appears (which I've subclassed).
The user is prompted to click seve... | PyQt4 - detect global mouse click | 1.2 | 0 | 0 | 2,065 |
13,150,638 | 2012-10-31T02:56:00.000 | 3 | 0 | 1 | 0 | python,list | 13,150,648 | 2 | false | 0 | 0 | You could try x[-1:] which returns a list containing either the last element, or an empty list if x is the empty list. Of course, if you want to use that element for something, you'll still have to check to see whether it is present or not. | 1 | 0 | 0 | Say I have the list x = []. I need to keep track of the last element in that list. I could do this with the variable last = x[-1], but of course this gives an index error if x is empty. How can I account for this so that I don't get an error when x is empty? | In Python, how can I store the last element of a list? | 0.291313 | 0 | 0 | 122 |
13,151,428 | 2012-10-31T04:47:00.000 | 2 | 0 | 0 | 0 | python,image-processing,opencv,image-segmentation | 13,162,109 | 2 | true | 0 | 0 | Are you willing to write your own image processing logic?
Your best option will likely be to optimize the segmentation/feature extraction for your problem, instead of using previous implementations like opencv meant for more general use-cases.
An option that I've found to work well in noisy/low-contrast environments i... | 1 | 5 | 1 | I have a set of butterfly images for training my system to segment a butterfly from a given input image. For this purpose, I want to extract the features such as edges, corners, region boundaries, local maximum/minimum intensity etc.
I found many feature extraction methods like Harris corner detection, SIFT but they di... | Feature extraction for butterfly images | 1.2 | 0 | 0 | 2,622 |
13,151,907 | 2012-10-31T05:45:00.000 | 0 | 0 | 0 | 0 | python,graph,matplotlib,tkinter,wxwidgets | 13,156,356 | 2 | false | 0 | 0 | You can do what you want with Tkinter, though there's no specific widget that does what you ask. There is a general purpose canvas widget that allows you to draw objects (rectangles, circles, images, buttons, etc), and it's pretty easy to add the ability to drag those items around. | 1 | 1 | 1 | I am looking for a GUI python module that is best suited for the following job:
I am trying to plot a graph with many columns (perhaps hundreds), each column representing an individual. The user should be able to drag the columns around and drop them onto different columns to switch the two. Also, there are going to be... | Looking for a specific python gui module to perform the following task | 0 | 0 | 0 | 244 |
13,155,509 | 2012-10-31T10:07:00.000 | -1 | 0 | 1 | 0 | windows,pdf,python-sphinx | 52,086,907 | 3 | false | 0 | 0 | As you have figured out: use Sphinx to generate LaTeX source, and then run it through a LaTex compiler to produce your PDF.
Instead of troubling yourself with installing LaTeX (which can be daunting) and getting an editor set up, I suggest that you use one of the on-line LaTeX services. You then only have to create a p... | 1 | 16 | 0 | I am using Sphinx to create documentation for my Python project in Windows. I need to generate PDF documentation. I found many explanation how to do this in Linux, but no good explanation how to do this in Windows. As far as i understand I need to create Latex format with Sphinx, and than use Texworks to convert Latex ... | How to create PDF documentation with Sphinx in Windows | -0.066568 | 0 | 0 | 8,815 |
13,156,730 | 2012-10-31T11:21:00.000 | 0 | 0 | 0 | 0 | python,excel,xlrd,xlwt | 13,998,563 | 2 | false | 0 | 0 | Work on 2 cells among tens of thousands...quite meager.
Normally,one should present an iteration over rows x columns. | 1 | 1 | 0 | I am using the modules xlwd, xlwt and xlutil to do some Excel manipulations in Python. I am not able to figure out how to copy the value of cell (X,Y) to cell (A,B) in the same sheet of an Excel file in Python. Could someone let me know how to do that? | Copying value of cell (X,Y) to cell (A,B) in same sheet of an Excel file using Python | 0 | 1 | 0 | 472 |
13,156,981 | 2012-10-31T11:35:00.000 | 2 | 0 | 1 | 0 | python,naming-conventions | 13,157,156 | 2 | false | 0 | 0 | If you want to package your application to allow a ZIP file containing it or its directory to be passed as an argument to the python interpreter to run the application, name your main script __main__.py. If you don't care about being able to do this (and most python applications do not), name it whatever you want. | 1 | 0 | 0 | I started a new Python project and I want to have a good structure from the beginning. I'm reading some convention Python guides but I don't find any info about how the main script must be named. Is there any rules for this? Is there any other kind of convention for folders or text files inside the project (like readme... | Python init file name convention | 0.197375 | 0 | 0 | 664 |
13,159,051 | 2012-10-31T13:25:00.000 | 0 | 0 | 0 | 1 | python,google-app-engine,asynchronous,google-cloud-datastore | 13,181,950 | 1 | false | 1 | 0 | You cannot start an async API call in one request and get its result in another. The HTTP serving infrastructure will wait for all API calls started in a request to complete before the HTTP response is sent back; the data structure representing the async API call will be useless in the second request (even if it hits ... | 1 | 0 | 0 | I'm trying to optimize my GAE webapp for latency.
The app has two requests which usually come one after another.
Is it safe to start an async db/memcache request during the first request and then use its results inside the following request?
(I'm aware that the second request might hit another instance. It would be han... | async db access between requests on GAE/Python | 0 | 0 | 0 | 82 |
13,160,217 | 2012-10-31T14:28:00.000 | 2 | 1 | 0 | 0 | python,django,emacs,ide | 13,160,450 | 3 | false | 1 | 0 | I also switched from Eclipse to Emacs and I must say that after adjusting to more text-focused ways of exploring code, I don't miss this feature at all.
In Emacs, you can just open a shell prompt (M-x shell). Then run IPython from within the Emacs shell and you're all set. I typically split my screen in half horizontal... | 1 | 5 | 0 | I'm looking into emacs as an alternative to Eclipse. One of my favorite features in Eclipse is being able to mouse over almost any python object and get a listing of its source, then clicking on it to go directly to its code in another file.
I know this must be possible in emacs, I'm just wondering if it's already impl... | Link to python modules in emacs | 0.132549 | 0 | 0 | 314 |
13,161,659 | 2012-10-31T15:41:00.000 | 4 | 0 | 0 | 1 | python,windows-7,command-line,copy,robocopy | 26,222,233 | 5 | false | 0 | 0 | Like halfs13 said use subprocess but you might need to format it like so
from subprocess import call
call(["robocopy",'fromdir', 'todir',"/S"])
Or else it may read the source as everything | 1 | 1 | 0 | I am trying to move multiple large folders (> 10 Gb , > 100 sub folders, > 2000 files ) between network drives. I have tried using shutil.copytree command in python which works fine except that it fails to copy a small percentage (< 1 % of files ) for different reasons.
I believe robocopy is the best option for me as ... | How can i call robocopy within a python script to bulk copy multiple folders? | 0.158649 | 0 | 0 | 16,661 |
13,162,409 | 2012-10-31T16:21:00.000 | 1 | 1 | 1 | 0 | python,nlp,classification,tagging,folksonomy | 13,162,597 | 4 | false | 0 | 0 | I am not an expert but it seems like you really need to define a notion of "key term", "relevance", etc, and then put a ranking algorithm on top of that. This sounds like doing NLP, and as far as I know there is a python package called NLTK that might be useful in this field. Hope it helps! | 1 | 2 | 0 | Not sure how to phrase this question properly, but this is what I intend to achieve using the hypothetical scenario outlined below -
A user's email to me has just the SUBJECT and BODY, the subject being the topic of email, and the body being a description of the topic in just one paragraph of max 1000 words. Now I wou... | picking the most relevant words from a paragraph | 0.049958 | 0 | 0 | 1,918 |
13,163,990 | 2012-10-31T17:59:00.000 | 2 | 0 | 0 | 1 | python,web,webserver,flask,tornado | 13,219,183 | 4 | false | 1 | 0 | instead of using Apache as your server, you'll use Tornado (of course as blocking server due to the synchronous nature of WSGI). | 1 | 43 | 0 | As far as I can tell Tornado is a server and a framework in one. It seems to me that using Flask and Tornado together is like adding another abstraction layer (more overhead). Why do people use Flask and Tornado together, what are the advantages? | Why use Tornado and Flask together? | 0.099668 | 0 | 0 | 46,076 |
13,168,523 | 2012-10-31T22:45:00.000 | 6 | 0 | 0 | 0 | python,django,scalability | 13,168,612 | 1 | true | 1 | 0 | count is fast and admin pagination for objects is limited to 100 records per page. Sorting on 2 million records could take some time though, but with 2 million users you can afford some ram to put some indexes on these fields ;)
to be serious: this is no problem at all as long as your database can handle it. | 1 | 1 | 0 | I am wondering if Django admin can handle a huge amount of records.
Say I have a 2 million users, how the pagination will be handled for example? Will it be dead slow because every time all the records will be counted to be provided to the offset?
Note: I plan to use PostgreSQL.
Thanks. | Can Django admin handle millions of records? | 1.2 | 0 | 0 | 943 |
13,171,860 | 2012-11-01T06:11:00.000 | 2 | 0 | 0 | 0 | python,django,apache,concurrency,mod-wsgi | 13,172,015 | 1 | true | 1 | 0 | This partly depends on your mod_wsgi configuration. If you configure it to use only one thread per process, then global variables are safe--although I wouldn't recommend using them, for a variety of reasons. In a multi-thread configuration, there is nothing guaranteeing that requests won't get mixed up if you use globa... | 1 | 7 | 0 | I have a django instance hosted via apache/mod_wsgi. I use pre_save and post_save signals to store the values before and after save for later comparisons. For that I use global variables to store the pre_save values which can be accessed in the post_save signal handler.
My question is, if two requests A and B come toge... | How django handles simultaneous requests with concurrency over global variables? | 1.2 | 0 | 0 | 4,217 |
13,172,331 | 2012-11-01T06:54:00.000 | 3 | 0 | 0 | 0 | python,django | 13,172,382 | 1 | false | 1 | 0 | You need to use the database's table and field names in the raw query--the string you provide will be passed to the database, not interpreted by the Django ORM. | 1 | 0 | 0 | I have few things to ask for custom queries in Django
DO i need to use the DB table name in the query or just the Model name
if i need to join the various tables in raw sql. do i need to use db field name or model field name like
Person.objects.raw('SELECT id, first_name, last_name, birth_date FROM Person A
inner joi... | Using raw sql in django python | 0.53705 | 1 | 0 | 408 |
13,173,029 | 2012-11-01T07:52:00.000 | 0 | 0 | 0 | 0 | python,c,wxpython,pyqt | 13,175,997 | 3 | false | 0 | 1 | If you have an option between C or C#(Sharp) then go with C# and use visual studio, you can build the GUI by dragging and dropping components easy. If you want to do something in python look up wxPython. Java has a built in GUI builder known as swing. You'll need some tutorials, but unless this program doesn't need to ... | 1 | 6 | 0 | My friend has an application written in C that comes with a GUI made using GTK under Linux. Now we want to rewrite the GUI in python (wxpython or PyQT).
I don't have experience with Python and don't know how to make Python communicate with C. I'd like to know if this is possible and if yes, how should I go about implem... | Can C programs have Python GUI? | 0 | 0 | 0 | 4,672 |
13,176,027 | 2012-11-01T11:24:00.000 | 2 | 0 | 1 | 0 | python,client-server,code-organization,project-organization | 13,176,078 | 1 | true | 0 | 0 | Yes, your project will be a package.
A module is a collection of related code. Most non-trivial projects will be a collection of modules in a package (potentially with sub-packages). | 1 | 2 | 0 | Yesterday I started an important Python project and since then I've been searching for documentation on how to organize the code to have a "high-quality" project. There is a lot of articles and official documentation about how to organize packages and modules but, as I'm very new to this language, I think that is not m... | Python project organization | 1.2 | 0 | 0 | 415 |
13,176,173 | 2012-11-01T11:34:00.000 | 19 | 0 | 0 | 0 | python,django,google-app-engine,logging,django-nonrel | 37,881,645 | 5 | false | 1 | 0 | If the use case is that you have a python program that should flush its logs when exiting, use logging.shutdown().
From the python documentation:
logging.shutdown()
Informs the logging system to perform an orderly
shutdown by flushing and closing all handlers. This should be called
at application exit and no further u... | 1 | 41 | 0 | I'm working with Django-nonrel on Google App Engine, which forces me to use logging.debug() instead of print().
The "logging" module is provided by Django, but I'm having a rough time using it instead of print().
For example, if I need to verify the content held in the variable x, I will put
logging.debug('x is: %s' % ... | Python- How to flush the log? (django) | 1 | 0 | 0 | 53,163 |
13,177,087 | 2012-11-01T12:28:00.000 | 0 | 0 | 0 | 0 | python,django,django-views,subprocess | 13,177,553 | 2 | false | 1 | 0 | Easiest I think will be use ajax to start he simulator. Response for start request can be updated on the same page.
However, you will still have to think about how to pause,resume and stop the simulator started by earlier requests. i.e how to manage and manipulate state of the simulator.
May be you want to update that ... | 1 | 1 | 0 | I have a HTML page which has four buttons Start, Stop, Pause and Resume in it. The functionality of the buttons are:
Start Button: Starts the backend Simulator. (The Simulator takes around 3 minutes for execution.)
Stop Button: Stops the Simulator.
Pause Button: Pauses the Simulator.
Resume Button: Resumes the Simulat... | Getting Responsive Django View | 0 | 0 | 0 | 457 |
13,178,116 | 2012-11-01T13:29:00.000 | 2 | 1 | 0 | 0 | c++,python,eclipse,cmake,swig | 13,178,922 | 1 | false | 0 | 0 | some more fancy features such as the ability to step through the code and set breakpoints, for example using Eclipse
how are those features "fancy"? You can already do those in pdb for Python, or gdb for C++.
I'd suggest running the python code with pdb (or using pdb.set_trace() to interrupt execution at an interestin... | 1 | 6 | 0 | I have a C++ project with a SWIG-generated Python front-end, which I build using CMake. I am now trying to find a convenient way to debug my mixed Python/C++ code. I am able to get a stack-trace of errors using gdb, but I would like to have some more fancy features such as the ability to step through the code and set b... | Debugging mixed Python/C++ code in Eclipse | 0.379949 | 0 | 0 | 3,277 |
13,179,515 | 2012-11-01T14:46:00.000 | 2 | 0 | 1 | 1 | python,windows,batch-file | 13,179,540 | 4 | false | 0 | 0 | No, I don't think you can reasonably expect to do this.
Batch files are executed by the Windows command interpreter, which is way way more primitive.
Python is a full-blown programming language with a rich and powerful library of standard modules for all sorts of tasks. All the Windows command interpreter can do is ac... | 1 | 5 | 0 | I would like a user on Windows to be able to run my Python program, so I want to convert it to a .bat file. Is there a way to convert it? I've tried searching, but didn't find anything. | Python to .bat conversion | 0.099668 | 0 | 0 | 19,619 |
13,183,980 | 2012-11-01T19:16:00.000 | 1 | 1 | 0 | 0 | python,filter,zeromq,pyzmq | 13,200,669 | 1 | false | 0 | 0 | A zmq publisher doesn't do any queueing... it drops messages when there isn't a SUB available to receive those messages.
The better way in your situation would be to create a generic sub who only will subscribe to certain messages of interest. That way you can spin up all of the different SUBs (even within one thread ... | 1 | 2 | 0 | I have a python messaging application that uses ZMQ. Each object has a PUB and a SUB queue, and they connect to each other. In some particular cases I want to wait for a particular message in the SUB queue, leaving the ones that I am not interested for later processing.
Right now, I am getting all messages and queuing... | Get a particular message from ZMQ Sub Queue | 0.197375 | 0 | 0 | 249 |
13,186,494 | 2012-11-01T22:29:00.000 | 1 | 0 | 0 | 0 | google-app-engine,python-2.7,google-cloud-datastore,blobstore | 13,187,373 | 4 | false | 1 | 0 | You can create an entity that links blobs to users. When a user uploads a blob, you immediately create a new record with the blob id, user id (or post id), and time created. When a user submits a post, you add a flag to this entity, indicating that a blob is used.
Now your cron job needs to fetch all entities of this ... | 3 | 2 | 0 | What is the most efficient way to delete orphan blobs from a Blobstore?
App functionality & scope:
A (logged-in) user wants to create a post containing some normal
datastore fields (e.g. name, surname, comments) and blobs (images).
In addition, the blobs are uploaded asynchronously before the resto
of the data is sent... | Deleting Blobstore orphans | 0.049958 | 1 | 0 | 1,014 |
13,186,494 | 2012-11-01T22:29:00.000 | 3 | 0 | 0 | 0 | google-app-engine,python-2.7,google-cloud-datastore,blobstore | 13,247,039 | 4 | true | 1 | 0 | Thank for the comments. However, I understood those solutions well, I find them too inefficient. Querying thousands of entries for those that are flagged as "unused" is not ideal.
I believe I have come up with a better way and would like to hear your thoughts on it:
When a blob is saved, immediately a deferred task is ... | 3 | 2 | 0 | What is the most efficient way to delete orphan blobs from a Blobstore?
App functionality & scope:
A (logged-in) user wants to create a post containing some normal
datastore fields (e.g. name, surname, comments) and blobs (images).
In addition, the blobs are uploaded asynchronously before the resto
of the data is sent... | Deleting Blobstore orphans | 1.2 | 1 | 0 | 1,014 |
13,186,494 | 2012-11-01T22:29:00.000 | 0 | 0 | 0 | 0 | google-app-engine,python-2.7,google-cloud-datastore,blobstore | 16,378,785 | 4 | false | 1 | 0 | Use Drafts! Save as draft after each upload. Then dont do the cleaning! Let the user for himself chose to wipe out.
If you're planning on posts in a Facebook style use drafts either or make it private. Why bother deleting users' data? | 3 | 2 | 0 | What is the most efficient way to delete orphan blobs from a Blobstore?
App functionality & scope:
A (logged-in) user wants to create a post containing some normal
datastore fields (e.g. name, surname, comments) and blobs (images).
In addition, the blobs are uploaded asynchronously before the resto
of the data is sent... | Deleting Blobstore orphans | 0 | 1 | 0 | 1,014 |
13,187,697 | 2012-11-02T00:45:00.000 | 5 | 0 | 1 | 0 | python,immutability | 13,187,701 | 3 | true | 0 | 0 | List, Dictionary: Mutable
Tuple: Immutable | 2 | 1 | 0 | Are the following containers mutable or immutable in Python?
List
Tuple
Dictionary | Python mutable/immutable containers | 1.2 | 0 | 0 | 1,696 |
13,187,697 | 2012-11-02T00:45:00.000 | 6 | 0 | 1 | 0 | python,immutability | 33,158,642 | 3 | false | 0 | 0 | Mutable means value of a variable can be changed in the same memory block itself where the variable is stored or referenced.
Immutable means, when you try to change the value of a variable, it creates a new memory block and stores the new value over there.
Immutable -- Strings, Tuples, Numbers etc
Mutable -- Lists, Dic... | 2 | 1 | 0 | Are the following containers mutable or immutable in Python?
List
Tuple
Dictionary | Python mutable/immutable containers | 1 | 0 | 0 | 1,696 |
13,188,791 | 2012-11-02T03:14:00.000 | 1 | 0 | 1 | 0 | python-3.x | 13,191,512 | 1 | true | 0 | 0 | Either you create a class with these attributes as attributes, or you just use a dictionary. It's a matter of taste, both works. Having a class gives you the possibility to also make methods like "is_old" or "is_modified" etc.
The same goes for the structure to hold all the data. It's basically a giant dictionary, but ... | 1 | 0 | 0 | i want to cache my object in the memory for performance,but also need to recycle them if it's too long not accessed.
every 30 minutes a function would be called , check every cache object , like a file's attributes in windows operation system, each object should have two attributes:last modified time stamp(or a flag) ... | find a data type suitable for my cache | 1.2 | 0 | 0 | 42 |
13,190,187 | 2012-11-02T06:08:00.000 | 0 | 0 | 0 | 0 | python,matplotlib-basemap,chaco | 16,198,408 | 1 | false | 0 | 0 | Chaco and matplotlib are completely different tools. Basemap has been built on top of matplotlib so it is not possible to add a Basemap map on a Chaco plot.
I'm afraid I couldn't find any mapping layer to go with Chaco. Is there a reason you cannot use matplotlib for you plot? | 1 | 1 | 1 | I had developed scatter and lasso selection plots with Chaco. Now, I need to embed a BaseMap [with few markers on a map] onto the plot area side by side.
I created a BaseMap and tried to add to the traits_view; but it is failing with errors.
Please give me some pointers to achieve the same. | How to use BaseMap with chaco plots | 0 | 0 | 0 | 156 |
13,190,253 | 2012-11-02T06:13:00.000 | 0 | 1 | 0 | 0 | python,redis | 13,205,548 | 1 | false | 0 | 0 | I've figure it out.
I'm using win7. Redis server doesn't load the config file each time it runs. I need to load it manually or change save frequency in redis-cli using 'save 60 50000'. | 1 | 1 | 0 | I'm using redis for python to store and process about 4 million keys and their values. Then I found Redis writes to disk too often. It really cost time. So I change "save 60 10000" in redis config file to "save 60 50000". But it still write to disk every 10000 key changes. I've reboot Redis server.
PS: I want to use di... | Redis save time config. It operates hardisk too often | 0 | 0 | 0 | 310 |
13,195,697 | 2012-11-02T12:58:00.000 | 0 | 0 | 1 | 0 | python,scons | 13,196,445 | 1 | true | 0 | 0 | I have done exactly what you are explaining. If your SConstruct and/or SConscript scripts simply import your common Python code, then there is nothing special you have to do, except import the appropriate SCons modules in your Python code.
If, on the other hand, you have a Python script, from which you want to invoke S... | 1 | 0 | 0 | I want to make "common" script which I will use in all my sconscripts
This script must use some scons functions like Object() or SharedObject()
Is there any scons file that i can import or maybe another useful hack.
Im new to python and scons. | How to make python script for scons that use scons functions and variables | 1.2 | 0 | 0 | 228 |
13,197,097 | 2012-11-02T14:22:00.000 | 5 | 0 | 0 | 0 | python,time-series,forecasting | 13,198,574 | 1 | true | 0 | 0 | Yes, you could use the [no longer developed or extended, but maintained] package RPy, or you could use the newer package RPy2 which is actively developed.
There are other options too, as eg headless network connections to Rserve. | 1 | 1 | 1 | I found forecast package from R the best solution for time series analysis and forecasting.
I want to use it in Python. Could I use rpy and after take the forecast package in Python? | Forecast Package from R in Python | 1.2 | 0 | 0 | 1,673 |
13,198,198 | 2012-11-02T15:22:00.000 | 1 | 0 | 0 | 0 | python,django,templates,gis | 13,198,418 | 3 | false | 1 | 0 | Perhaps you could put it in the view which renders the search page.
asuuming you have a view function like search you could:
get users radius request.user.get_radius
search for places based on that radius relevant_places = Places.get_all_places_in_radius
Render those places to a user | 2 | 0 | 0 | I apologize in advance is this question is too broad, but I need some help conceptualizing.
The end result is that I want to enable radius-based searching. I am using Django. To do this, I have two classes: Users and Places. Inside the Users class is a function that defines the radius in which people want to search. In... | Search Between Two Models in Django | 0.066568 | 0 | 0 | 88 |
13,198,198 | 2012-11-02T15:22:00.000 | 0 | 0 | 0 | 0 | python,django,templates,gis | 13,202,154 | 3 | false | 1 | 0 | I just decided to add the function to the view so that the information can be input directly into the model after a user enters it. Thanks for the help. I'll probably wind up looking into geodjango. | 2 | 0 | 0 | I apologize in advance is this question is too broad, but I need some help conceptualizing.
The end result is that I want to enable radius-based searching. I am using Django. To do this, I have two classes: Users and Places. Inside the Users class is a function that defines the radius in which people want to search. In... | Search Between Two Models in Django | 0 | 0 | 0 | 88 |
13,200,900 | 2012-11-02T18:17:00.000 | 2 | 0 | 1 | 1 | python,windows,cmd | 13,200,981 | 3 | false | 0 | 0 | The reason why it works from the Menu Item but not from the command prompt is that the menu item specifies the "Start in" directory where the Python executable can be found.
Chances are the Win 7 -> Win 8 upgrade failed to preserve the PATH environmental variable, where the path the Python was previously specified, all... | 2 | 0 | 0 | I can run the command line version of Python but I cannot seem to run it from the command prompt. I have recently upgraded from Windows 7 to Windows 8 and it worked fine with Windows 7. Now Windows 8 will not recognize Python. Thanks, William | Python not running from cmd in Windows 8 after upgrade | 0.132549 | 0 | 0 | 3,542 |
13,200,900 | 2012-11-02T18:17:00.000 | 0 | 0 | 1 | 1 | python,windows,cmd | 15,230,805 | 3 | false | 0 | 0 | Go to C:\python33 or wherever you installed it.
Right click on "pythonw" and pin to taskbar,
Run from taskbar. | 2 | 0 | 0 | I can run the command line version of Python but I cannot seem to run it from the command prompt. I have recently upgraded from Windows 7 to Windows 8 and it worked fine with Windows 7. Now Windows 8 will not recognize Python. Thanks, William | Python not running from cmd in Windows 8 after upgrade | 0 | 0 | 0 | 3,542 |
13,202,944 | 2012-11-02T20:57:00.000 | 4 | 0 | 1 | 0 | python,linux,ms-word,rtf | 13,202,972 | 2 | true | 0 | 0 | Not without rendering the actual page.
The number of pages will depend on many things, such as the size of the fonts being used, the margins in all four directions on the page, and the insertion of any other sized artifacts such as images.
So what you would have to do is render the document in an RTF library of some... | 1 | 4 | 0 | I would like to count the number of pages in a RTF or MS Word document, using python. Is this possible? | Number of pages in a doc, docx or rtf file using python | 1.2 | 0 | 0 | 1,633 |
13,203,601 | 2012-11-02T21:59:00.000 | 10 | 0 | 1 | 0 | python,list,big-o | 13,203,622 | 3 | false | 0 | 0 | For a list of size N, and a slice of size M, the iteration is actually only O(M), not O(N). Since M is often << N, this makes a big difference.
In fact, if you think about your explanation, you can see why. You're only iterating from i_1 to i_2, not from 0 to i_1, then I_1 to i_2. | 1 | 61 | 1 | Say I have some Python list, my_list which contains N elements. Single elements may be indexed by using my_list[i_1], where i_1 is the index of the desired element. However, Python lists may also be indexed my_list[i_1:i_2] where a "slice" of the list from i_1 to i_2 is desired. What is the Big-O (worst-case) notation ... | Big-O of list slicing | 1 | 0 | 0 | 47,961 |
13,203,745 | 2012-11-02T22:13:00.000 | 1 | 1 | 0 | 0 | python,crontab,boto | 13,203,938 | 1 | false | 1 | 0 | First, I would try updating boto; a commit to the development branch mentions logging when a multipart upload fails. Note that doing so will require using s3put instead, as s3multiput is being folded into s3put. | 1 | 3 | 0 | I'm trying to automate a process that collects data on one (or more) AWS instance(s), uploads the data to S3 hourly, to be retrieved by a decoupled process for parsing and further action. As a first step, I whipped up some crontab-initiated shell script (running in Ubuntu 12.04 LTS) that calls the boto utility s3multip... | Silent failure of s3multiput (boto) upload to s3 from EC2 instance | 0.197375 | 0 | 1 | 515 |
13,204,907 | 2012-11-03T00:42:00.000 | 1 | 0 | 0 | 0 | python,html,pyramid | 13,205,833 | 1 | true | 1 | 0 | You can serve static html from Pyramid by using views that return pre-fabricated responses. You'll have a more fun time doing it though by just having your web server serve static html if it finds it, otherwise proxying the request to your Pyramid app. | 1 | 1 | 0 | I have a Pyramid app using Mako templates and am wondering if it is possible to serve static HTML pages within the app?
For the project I'm working on, we want to have relatively static pages for the public "front-facing" bits, and then the application will dynamically serve the meat of the site. We would like one of o... | Can you serve static HTML pages from Pyramid? | 1.2 | 0 | 0 | 1,016 |
13,205,215 | 2012-11-03T01:48:00.000 | 12 | 0 | 1 | 0 | python | 13,205,230 | 1 | true | 0 | 0 | False. O(1) means constant time. This means that no matter what the size of the input is, the function will run in more or less the same amount of time - the runtime does not scale with the input.
This means that two O(1) functions will each run in constant time, though their constants may be different. So if you have ... | 1 | 3 | 0 | "All O(1) functions take exactly the same amount of time to run." True or false? Can anybody explain the answer to me? | All O(1) functions take exactly the same amount of time to run. True or False? | 1.2 | 0 | 0 | 3,107 |
13,205,245 | 2012-11-03T01:54:00.000 | -1 | 0 | 0 | 0 | python,azure,webapp2 | 13,206,994 | 1 | false | 1 | 0 | To my knowledge, Windows Azure Web Sites don't support Python. | 1 | 2 | 0 | I would like to try to develop website using python, upload to azure website. I saw there is a tutorial using django. Is there a tutorial using webapp2? | python in azure website using webapp2 | -0.197375 | 0 | 0 | 231 |
13,206,304 | 2012-11-03T05:31:00.000 | 0 | 0 | 1 | 0 | python,image,imagemagick | 13,206,430 | 1 | false | 0 | 0 | You mentioned that you were having problems installing PIL on a Mac. Have you considered using Macports? | 1 | 0 | 0 | I have a group of .png files where most of the image is transparent (alpha channel), but there is image in the middle (non-transparent pixels) that I need to extract.
What I need to do is crop the image down to just the non-transparent pixels, but I need to know how many pixels were cropped off the left and bottom so w... | Cropping away transparent pixels but preserving the offset | 0 | 0 | 0 | 247 |
13,206,438 | 2012-11-03T05:53:00.000 | 1 | 0 | 0 | 1 | python,google-app-engine | 13,236,236 | 2 | true | 1 | 0 | After 3 days of endless searching, I have figured out the problem, if you are facing this issue, first thing you have to check is your system time, mine was incorrect due to daylight saving changes.
Thanks | 1 | 0 | 0 | I am working on an application (python based), which is deployed on GAE, it was working fine till last day, but I can't seem to update any code on app engine since this morning, it is complaining about some sort of issue with password, I have double checked and email id and password are correct.
here is the stack trace... | Google App Engine Update Issue | 1.2 | 0 | 0 | 937 |
13,206,698 | 2012-11-03T06:36:00.000 | 0 | 0 | 1 | 0 | python | 13,206,777 | 5 | false | 0 | 0 | In Python2, a leading 0 on a numeric literal signifies that it is an octal number. This is why 0100 == 64. This also means that 0800 and 0900 are syntax errors
It's a funny thing that's caught out many people at one time or another.
In Python3, 0100 is a syntax error, you must use the 0o prefix if you need to write a o... | 2 | 0 | 0 | I meet a problem about converting number to string.
I want to get a string "0100" from str(0100), but what I got is "64". Does any way I can do to get a string "0100" from 0100.
UPDATE
Thanks for many people's pointing out that the leading "0" is a indicator for octal. I know it, what I want is to convert 0100 to "0100... | convert number to string in python | 0 | 0 | 0 | 8,919 |
13,206,698 | 2012-11-03T06:36:00.000 | 1 | 0 | 1 | 0 | python | 13,206,733 | 5 | false | 0 | 0 | Your first issue is that the literal "0100", because it begins with a digit 0, is interpreted in octal instead of decimal. By contrast, str(100) returns "100" as expected.
Secondly, it sounds like you want to zero-fill your numbers to a fixed width, which you can do with the zfill method on strings. For example, str(10... | 2 | 0 | 0 | I meet a problem about converting number to string.
I want to get a string "0100" from str(0100), but what I got is "64". Does any way I can do to get a string "0100" from 0100.
UPDATE
Thanks for many people's pointing out that the leading "0" is a indicator for octal. I know it, what I want is to convert 0100 to "0100... | convert number to string in python | 0.039979 | 0 | 0 | 8,919 |
13,207,710 | 2012-11-03T09:11:00.000 | 0 | 0 | 0 | 0 | python,django,django-templates | 13,207,944 | 2 | true | 1 | 0 | Easiest/quickest would be update django's url tag to fail silently.
You can update function definition on def url(parser, token): in <your_django_path>/templatetags/future.py to have all code in try ... except and do not raise exception when there is any.
However, this is quickest hack that I could think of, I'm not s... | 1 | 4 | 0 | Is there any way to disable throwing NoReverseMatch exceptions from url tags in Django templates (just make it silently fail, return an empty string or smth... temporarily, for development, of course)?
(I'm working on a Django project that is kind of a mess as far as things are organized (bunch of remote-workers, contr... | How can I "ignore" NoReverseMatch in Django template? | 1.2 | 0 | 0 | 1,152 |
13,208,657 | 2012-11-03T11:19:00.000 | 1 | 0 | 0 | 0 | python,sockets,smalltalk | 13,605,902 | 5 | false | 0 | 1 | I remember a ruby->dotNet bridge which was ported to some smalltalk as far as I remember.
(Ruby/.Net Bridge / 2004 Benjamin Schroeder and John R. Pierce). It covered passing of exceptions, callbacks etc. May make a good starting point for your work. Don't know where and how to get it, though. | 2 | 3 | 0 | I am making a project in pharo that will extend it and make it more visual for also further extending the 3d application Blender. Blender uses mainly python for extensions called "Addons" , to be precise python 3.2. So what I want is to make a bridge between pharo (smalltalk) and blender (python).
For now I have focus... | Making a bridge for communication between python and smalltalk | 0.039979 | 0 | 0 | 415 |
13,208,657 | 2012-11-03T11:19:00.000 | 2 | 0 | 0 | 0 | python,sockets,smalltalk | 13,210,746 | 5 | true | 0 | 1 | WebSockets sending JSON messages between Smalltalk and Python could be the bleeding edge yet long-term quite a promising way to go. Smalltalk has quite good WebSockets support, I suppose Python as well. | 2 | 3 | 0 | I am making a project in pharo that will extend it and make it more visual for also further extending the 3d application Blender. Blender uses mainly python for extensions called "Addons" , to be precise python 3.2. So what I want is to make a bridge between pharo (smalltalk) and blender (python).
For now I have focus... | Making a bridge for communication between python and smalltalk | 1.2 | 0 | 0 | 415 |
13,208,743 | 2012-11-03T11:32:00.000 | 1 | 0 | 0 | 0 | python,3d,isometric | 13,214,374 | 2 | false | 0 | 1 | I found this code:
www.pygame.org/wiki/OBJFileLoader
It let me load and display an .obj file of a cube from Blender with ease. It runs PyOpenGL so it should let me do everything OpenGL can. Never knew OpenGL was so low-level, didn't realize I'd have to write my own loaders and everything.
Anyway, I'm pretty sure I can ... | 1 | 0 | 0 | I want to write a tool in Python that will help me create isometric tiles from 3D-models. You see, I'm not a very proficient artist and free 3D-models are plentisome, and creating something like a table or chair is much easer in 3D than in painting.
This script will load a 3D model in orthographic projection and take p... | Render 3D model orthographically in Python | 0.099668 | 0 | 0 | 1,835 |
13,212,673 | 2012-11-03T19:28:00.000 | 1 | 1 | 0 | 0 | python,computer-forensics | 13,214,640 | 1 | false | 0 | 0 | Your problem can be formulated as "how do I search in a very long file with no line structure." It's no different from what you'd do if you were reading line-oriented text one line at a time: Imagine you're reading a text file block by block, but have a line-oriented regexp to search with; you'd search up to the last c... | 1 | 1 | 0 | I'm looking to write a script in Python 2.x that will scan physical drive (physical and not logical) for specific strings of text that will range in size (chat artifacts). I have my headers and footers for the strings and so I am just wondering how is best to scan through the drive? My concern is that if I split it int... | Extracting strings from a physical drive | 0.197375 | 0 | 0 | 197 |
13,213,496 | 2012-11-03T21:07:00.000 | -1 | 0 | 1 | 0 | python,random,floating-point,rounding | 13,213,686 | 2 | false | 0 | 0 | rounding is: if i round 3.45 upwards, i will get 4. but if i round it downwards, i will get 3. so in this case, the values of ranges coming from [ or ] will change depending on round | 1 | 7 | 0 | About random.uniform, docstring says:
Get a random number in the range [a, b) or [a, b] depending on rounding.
But I do not know what does 'depending on rounding' exactly mean. | What does 'depending on rounding' exactly mean? | -0.099668 | 0 | 0 | 322 |
13,214,349 | 2012-11-03T22:58:00.000 | 1 | 0 | 0 | 1 | python,open-source,driver,libraries | 13,214,376 | 3 | true | 0 | 0 | The smaller the better.
A 10 line function to convert HSV to RGB or find the closest point to a triangle or something like a CAN/GPIB driver is far more likely to be read and used than a massive complicated poorly documented framework | 3 | 2 | 0 | I have a fair number of smaller projects / libraries that I have been using over the past 2 years. I am thinking about moving them to Google Code to make it easier to share with co-workers and easier to import them into new projects on my own environments. The are things like a simple FSMs, CAN (Controller Area Netwo... | How small is *too small* for an opensource project? | 1.2 | 0 | 0 | 119 |
13,214,349 | 2012-11-03T22:58:00.000 | 0 | 0 | 0 | 1 | python,open-source,driver,libraries | 13,214,378 | 3 | false | 0 | 0 | 500 lines? That's a lot in my opinion.
Sounds just fine to publish them as a project. I mean how many blog posts have you read with just some code that saved you hours?
Now imagine that but 500 lines of code and a permanent host designed for the purpose | 3 | 2 | 0 | I have a fair number of smaller projects / libraries that I have been using over the past 2 years. I am thinking about moving them to Google Code to make it easier to share with co-workers and easier to import them into new projects on my own environments. The are things like a simple FSMs, CAN (Controller Area Netwo... | How small is *too small* for an opensource project? | 0 | 0 | 0 | 119 |
13,214,349 | 2012-11-03T22:58:00.000 | 1 | 0 | 0 | 1 | python,open-source,driver,libraries | 13,214,412 | 3 | false | 0 | 0 | Do not think about number of lines of code, think about utility of your code. If your code is useful for somebody, upload your code to a repository or repositories, write wiki, examples, etc. I saw a useful Python library that was less than 100 lines. | 3 | 2 | 0 | I have a fair number of smaller projects / libraries that I have been using over the past 2 years. I am thinking about moving them to Google Code to make it easier to share with co-workers and easier to import them into new projects on my own environments. The are things like a simple FSMs, CAN (Controller Area Netwo... | How small is *too small* for an opensource project? | 0.066568 | 0 | 0 | 119 |
13,215,104 | 2012-11-04T01:04:00.000 | -2 | 0 | 1 | 0 | python | 13,215,122 | 6 | true | 0 | 0 | You can use rstrip. Check the python docs. | 1 | 2 | 0 | I have a variable text whose value is like below,I need strip of trailing digits,is there a python built-in function to do it..if not,please suggest how can this be done in python
e.g. -text=A8980BQDFZDD1701209.3 => -A8980BQDFZDD | How to strip trailing digits from a string | 1.2 | 0 | 0 | 10,613 |
13,215,873 | 2012-11-04T03:43:00.000 | 3 | 0 | 1 | 0 | python,python-3.x,python-3.3 | 13,215,904 | 1 | true | 0 | 0 | You've been seeing things that somewhat conflict based on Python 2 vs 3. In Python 3, isinstance(foo, str) is almost certainly what you want. bytes is for raw binary data, which you probably can't include in an argument string like that.
The python 2 str type stored raw binary data, usually a string in some specific en... | 1 | 0 | 0 | I'm trying to determine whether a function argument is a string, or some other iterable. Specifically, this is used in building URL parameters, in an attempt to emulate PHP's ¶m[]=val syntax for arrays - so duck typing doesn't really help here, I can iterate through a string and produce things like ¶m[]=v¶m... | Separate strings from other iterables in python 3 | 1.2 | 0 | 0 | 97 |
13,219,237 | 2012-11-04T14:06:00.000 | 1 | 0 | 0 | 0 | python,python-3.x,pygame,portable-executable | 13,242,922 | 3 | true | 0 | 1 | Install Pygame, then take your entire Python folder and put it where you want it to go.
If you mean you want to be able to use python (filename).py on the terminal, then you will have to change the PATH variable in the terminal, or add the shebang line #!usr\bin\python onto your programs. | 1 | 0 | 0 | I am looking for version (custom/beta?) of portable python that is python 3.x and includes pygame. I know pygame hasn't been fully converted to 3.x yet, but for what I need it for it works perfectly. | portable python 3.x and pygame | 1.2 | 0 | 0 | 2,264 |
13,219,380 | 2012-11-04T14:25:00.000 | 1 | 0 | 1 | 0 | python,pygame,py2exe | 13,646,270 | 2 | false | 0 | 1 | have you tried compiling with cx_freeze? | 1 | 4 | 0 | I have created a program that takes pictures with your webcam.
I used Pygame and VideoCapture. It all works fine as .pyw file, but after it is compiled with py2exe it is just doesn't work.
From my research, the error is coming from trying to compile the VideoCapture module.
PLEEASSEE HELP ME!!!
(The Same error occurs ... | py2exe not compiling VideoCapture correctly | 0.099668 | 0 | 0 | 165 |
13,220,619 | 2012-11-04T16:47:00.000 | 2 | 0 | 0 | 0 | python,django,windows,pinax | 13,221,181 | 3 | false | 1 | 0 | Django allows you to do this super easily without any apps. I'd highly recommend you read up on its basic form processing features. | 1 | 0 | 0 | In my application I want to process some form data and show it later on a different page.
My question is: Can you recommend any django apps to quickly set up such a system?
I appreciate your answer!!! | What are the best reusable django apps for form processing? | 0.132549 | 0 | 0 | 154 |
13,222,351 | 2012-11-04T20:03:00.000 | 2 | 0 | 1 | 0 | regex,python-2.7 | 13,222,389 | 2 | true | 0 | 0 | Actually \b is not just for beginning of the word, but also for the end of the word.
In regex, \b means word boundary. So \b\w+\b is a pattern for a single word. | 1 | 1 | 0 | I cannot find in the python's RE module special symbol for the end of the word...
There is \b - beginning of a word, and \B - opposite of \b, which is match for the any symbol of the word except first... But why there is no just end of the word?
Am i missed something? | Regexp's end of a word | 1.2 | 0 | 0 | 294 |
13,222,607 | 2012-11-04T20:33:00.000 | 0 | 0 | 1 | 0 | python,user-interface,window | 13,222,646 | 3 | false | 0 | 1 | You can do this, the library is called tkinter. | 2 | 0 | 0 | Hello fellow python users, I bring forth a question that I have been wondering for a while. I love python, and have made many programs with it. Now what I want to do is (or know how to do) make a python program, but run it in a window with buttons that you click on instead of typing in numbers to elect things. I woul... | Can you run python as a windowed program? | 0 | 0 | 0 | 336 |
13,222,607 | 2012-11-04T20:33:00.000 | 0 | 0 | 1 | 0 | python,user-interface,window | 13,222,783 | 3 | false | 0 | 1 | There are many GUI libraries to choose from, but I like Tkinter because it's easy and there's nothing to install (it comes with Python).
But some people prefer wxPython or others, such as PyQT. You'll have to decide which you like, or just go with Tkinter if you don't want to go through the trouble of installing librar... | 2 | 0 | 0 | Hello fellow python users, I bring forth a question that I have been wondering for a while. I love python, and have made many programs with it. Now what I want to do is (or know how to do) make a python program, but run it in a window with buttons that you click on instead of typing in numbers to elect things. I woul... | Can you run python as a windowed program? | 0 | 0 | 0 | 336 |
13,223,839 | 2012-11-04T22:57:00.000 | 1 | 0 | 0 | 0 | python,turbogears,repoze.who | 13,551,567 | 1 | true | 1 | 0 | Storing a timestamp of the last time password got changed inside request.identity['userdata'] should make possible to check it whenever the user gets back and log him out if it's different from the last time the password got changed for real. | 1 | 0 | 0 | I'm interested in improving security of my TurboGears 2.2 application so that when user changes his password, it logs him out from all sessions and he must login again. The goal is when user changes password on browser 1, he must relogin on browser 2, too. Experiments show that this is not the case, especially if brows... | Remove all user's cookies/sessions when password is reset | 1.2 | 0 | 0 | 282 |
13,225,540 | 2012-11-05T03:25:00.000 | 0 | 0 | 0 | 1 | python,google-app-engine | 13,228,117 | 2 | false | 1 | 0 | XG transactions are limited to a few entity groups for performance reasons. Running an XG transaction across hundreds of entity groups would be incredibly slow.
Can you break your function up into many sub-functions, one for each entity group? If so, you should have no trouble running them individually, or on the task ... | 1 | 1 | 0 | I'm developing on google app engine. The focus of this question is a python function that modifies hundreds of entity groups. The function takes one string argument. I want to execute this function as a transaction because there are instances right now when the same function with the same string argument are simulta... | Is there a way to atomically run a function as a transaction within google app engine when the function modifies more than five entity groups? | 0 | 0 | 0 | 66 |
13,225,890 | 2012-11-05T04:23:00.000 | 66 | 0 | 0 | 0 | python,django,django-timezone | 13,226,368 | 2 | true | 1 | 0 | Just ran into this last week for a field that had default=date.today(). If you remove the parentheses (in this case, try default=timezone.now) then you're passing a callable to the model and it will be called each time a new instance is saved. With the parentheses, it's only being called once when models.py loads. | 1 | 28 | 0 | This issue has been occurring on and off for a few weeks now, and it's unlike any that has come up with my project.
Two of the models that are used have a timestamp field, which is by default set to timezone.now().
This is the sequence that raises error flags:
Model one is created at time 7:30 PM
Model two is creat... | Django default=timezone.now() saves records using "old" time | 1.2 | 1 | 0 | 23,029 |
13,227,115 | 2012-11-05T06:38:00.000 | 0 | 0 | 1 | 0 | python-2.7,scipy | 13,229,534 | 3 | false | 0 | 0 | You can make a change of variables s = t_0 - t, and integrate the differential equation with respect to s. odeint doesn't do this for you. | 1 | 2 | 1 | Is it possible to integrate any Ordinary Differential Equation backward in time
using scipy.integrate.odeint ?
If it is possible, could someone tell me what should be the arguement 'time' in 'odeint. | Backward integration in time using scipy odeint | 0 | 0 | 0 | 4,017 |
13,228,677 | 2012-11-05T08:50:00.000 | 2 | 1 | 0 | 1 | python,cruisecontrol.net,nant | 13,293,387 | 1 | true | 0 | 0 | I don't think there is a built in python task, but you should be able to execute it by crafting an exec task. | 1 | 0 | 0 | Is is posible to run a python script from Cruisecontrol.Net ? Is there a CCNEt task or a nant task that can be used? | Run python script from CruiseControl.NET | 1.2 | 0 | 0 | 386 |
13,228,847 | 2012-11-05T09:02:00.000 | 1 | 0 | 0 | 0 | python,django,facebook-graph-api | 13,228,977 | 3 | false | 1 | 0 | Make a Graph API call like this and you get the real URL:
https://graph.facebook.com/[fbid]?fields=picture
Btw, you don´t need an access token for this. | 1 | 0 | 0 | I'm developing an application that displays a users/friends photos. For the most part I can pull photos from the album, however for user/album cover photos, all that is given is the object ID for which the following URL provides the image:
https://graph.facebook.com/1015146931380136/picture?access_token=ABCDEFG&type=pi... | Resolve FB GraphAPI picture call to the final URL | 0.066568 | 0 | 1 | 872 |
13,230,195 | 2012-11-05T10:29:00.000 | 0 | 0 | 0 | 0 | python,python-2.7,openerp,accounting | 13,824,676 | 4 | false | 1 | 0 | IMO its very difficult we are currently migrating some data and its proving to be difficult.
I would advice you to pick a date in the future and tell everyone to just use another db with the correct chart of accounts.
Your finance dept will be the one to suggest what date is perfect. How about when a period starts. | 4 | 8 | 0 | I have installed chart of accounts A for company1. This chart was used couple months for accounting. How can I convert into chart of accounts B and keep old data for accounts (debit, credit, etc.)? In other words, is possible migrate data from one chart of accounts to another? Solution could be programmatically or trou... | How to convert in OpenERP from one chart of account to another? | 0 | 0 | 0 | 963 |
13,230,195 | 2012-11-05T10:29:00.000 | 0 | 0 | 0 | 0 | python,python-2.7,openerp,accounting | 13,369,353 | 4 | false | 1 | 0 | I don't know of any way to install another chart of accounts after you've run the initial configuration wizard on a new database. However, if all you want to do is change the account numbers, names, and parents to match a different chart of accounts, then you should be able to do that with a bunch of database updates. ... | 4 | 8 | 0 | I have installed chart of accounts A for company1. This chart was used couple months for accounting. How can I convert into chart of accounts B and keep old data for accounts (debit, credit, etc.)? In other words, is possible migrate data from one chart of accounts to another? Solution could be programmatically or trou... | How to convert in OpenERP from one chart of account to another? | 0 | 0 | 0 | 963 |
13,230,195 | 2012-11-05T10:29:00.000 | 0 | 0 | 0 | 0 | python,python-2.7,openerp,accounting | 15,182,814 | 4 | false | 1 | 0 | I needed to do similar. It is possible to massage the chart from one form to another but I found in the end that creating a New Database, bringing in modules, assigning the new Chart and then importing all critical elements was the best and safest path.
If you have a lot of transactions that will be more difficult to ... | 4 | 8 | 0 | I have installed chart of accounts A for company1. This chart was used couple months for accounting. How can I convert into chart of accounts B and keep old data for accounts (debit, credit, etc.)? In other words, is possible migrate data from one chart of accounts to another? Solution could be programmatically or trou... | How to convert in OpenERP from one chart of account to another? | 0 | 0 | 0 | 963 |
13,230,195 | 2012-11-05T10:29:00.000 | 0 | 0 | 0 | 0 | python,python-2.7,openerp,accounting | 41,658,981 | 4 | false | 1 | 0 | The fastest way to do so is using a ETL like Talend or Pentaho (provided there is a logic as to which account will map to which other during the process). If not you will have to do so by hand.
In case there is a logic, you would export it to a format you can transform and re import. Uninstall your account chart and in... | 4 | 8 | 0 | I have installed chart of accounts A for company1. This chart was used couple months for accounting. How can I convert into chart of accounts B and keep old data for accounts (debit, credit, etc.)? In other words, is possible migrate data from one chart of accounts to another? Solution could be programmatically or trou... | How to convert in OpenERP from one chart of account to another? | 0 | 0 | 0 | 963 |
13,233,107 | 2012-11-05T13:27:00.000 | 5 | 0 | 0 | 0 | python,flask,neo4j,py2neo | 13,234,558 | 2 | true | 1 | 0 | None of the REST API clients will be able to explicitly support (proper) transactions since that functionality is not available through the Neo4j REST API interface. There are a few alternatives such as Cypher queries and batched execution which all operate within a single atomic transaction on the server side; however... | 1 | 2 | 0 | I'm currently building a web service using python / flask and would like to build my data layer on top of neo4j, since my core data structure is inherently a graph.
I'm a bit confused by the different technologies offered by neo4j for that case. Especially :
i originally planned on using the REST Api through py2neo ,... | using neo4J (server) from python with transaction | 1.2 | 1 | 0 | 1,075 |
13,234,094 | 2012-11-05T14:26:00.000 | 1 | 0 | 0 | 1 | python,google-app-engine,memcached | 13,389,191 | 1 | false | 1 | 0 | memcache.get should not increase the item count in memcache statistic, and I'm not able to reproduce that behavior in production.
The memcache statistic page is global, so if you happen to have other requests (live, or through task queue) going to your application at the same time you're using the remote api, that coul... | 1 | 4 | 0 | I'm looking at the Memcache Viewer in my admin console on my deployed Google App Engine NDB app. For testing, I'm using the remote api. I'm doing something very simple: memcache.get('somekey'). For some reason, everytime I call this line and hit refresh on my statistics, the item count goes up by 2. This happens whethe... | Why does calling get() on memcache increase item count in Google App Engine? | 0.197375 | 0 | 0 | 195 |
13,234,196 | 2012-11-05T14:32:00.000 | 1 | 0 | 0 | 0 | python,oracle,cx-oracle | 58,120,873 | 6 | false | 0 | 0 | Tip for Ubuntu users
After configuring .bashrc environment variables, like it was explained in other answers, don't forget to reload your terminal window, typing $SHELL. | 3 | 12 | 0 | Newbie here trying to use python to do some database analysis. I keep getting the error:
"error: cannot locate an Oracle software installation" When installing CX_oracle (via easy_install).
The problem is I do not have oracle on my local machine, I'm trying to use python to connect to the main oracle server. I have h... | "error: cannot locate an Oracle software installation" When trying to install cx_Oracle | 0.033321 | 1 | 0 | 25,818 |
13,234,196 | 2012-11-05T14:32:00.000 | 2 | 0 | 0 | 0 | python,oracle,cx-oracle | 28,741,244 | 6 | false | 0 | 0 | I got this message when I was trying to install the 32 bit version while having the 64bit Oracle client installed.
What worked for me: reinstalled python with 64 bit (had 32 for some reason), installed cx_Oracle (64bit version) with the Windows installer and it worked perfectly. | 3 | 12 | 0 | Newbie here trying to use python to do some database analysis. I keep getting the error:
"error: cannot locate an Oracle software installation" When installing CX_oracle (via easy_install).
The problem is I do not have oracle on my local machine, I'm trying to use python to connect to the main oracle server. I have h... | "error: cannot locate an Oracle software installation" When trying to install cx_Oracle | 0.066568 | 1 | 0 | 25,818 |
13,234,196 | 2012-11-05T14:32:00.000 | 2 | 0 | 0 | 0 | python,oracle,cx-oracle | 13,234,377 | 6 | false | 0 | 0 | I installed cx_Oracle, but I also had to install an Oracle client to use it (the cx_Oracle module is just a common and pythonic way to interface with the Oracle client in Python).
So you have to set the variable ORACLE_HOME to your Oracle client folder (on Unix: via a shell, for instance; on Windows: create a new varia... | 3 | 12 | 0 | Newbie here trying to use python to do some database analysis. I keep getting the error:
"error: cannot locate an Oracle software installation" When installing CX_oracle (via easy_install).
The problem is I do not have oracle on my local machine, I'm trying to use python to connect to the main oracle server. I have h... | "error: cannot locate an Oracle software installation" When trying to install cx_Oracle | 0.066568 | 1 | 0 | 25,818 |
13,236,098 | 2012-11-05T16:20:00.000 | 2 | 0 | 0 | 0 | python,pandas,csv | 13,236,277 | 2 | true | 0 | 0 | There's no default way to do this right now. I would suggest chunking the file and iterating over it and discarding the columns you don't want.
So something like pd.concat([x.ix[:, cols_to_keep] for x in pd.read_csv(..., chunksize=200)]) | 1 | 9 | 1 | Suppose I have a csv file with 400 columns. I cannot load the entire file into a DataFrame (won't fit in memory). However, I only really want 50 columns, and this will fit in memory. I don't see any built in Pandas way to do this. What do you suggest? I'm open to using the PyTables interface, or pandas.io.sql.
T... | How to load only specific columns from csv file into a DataFrame | 1.2 | 0 | 0 | 7,641 |
13,236,405 | 2012-11-05T16:38:00.000 | 1 | 0 | 1 | 0 | python,py2exe | 13,237,078 | 2 | true | 0 | 0 | There is a feature in the configuration of py2exe that allows you to bundle all the Python files in a single library.zip file. That would considerably reduce the amount of files in the root directory, but there will still remain some files, regardless of all that.
These files are generally DLL files, at least from what... | 1 | 1 | 0 | Hi!I made a chess engine in python which i then compiled to .exe using py2exe. The problem is that it doesn't look very neat when i have all the strange files gathered together in the same folder (dist). I'd like to make a new folder inside the dist folder that contains all the helper files, so all my dist folder conta... | How to put files in folders using py2exe. | 1.2 | 0 | 0 | 1,098 |
13,237,955 | 2012-11-05T18:16:00.000 | -1 | 0 | 1 | 1 | python,python-3.x,argparse | 13,238,122 | 2 | false | 0 | 0 | try looking into using sys.argv[] | 1 | 0 | 0 | So, what i am trying to do is LS Mimic in Python code.
I have completed most of the commands, but i have one thing that i cant find the solution
So, if the ls command gets this command line,
ls test1
It should find the test1 directory and then do the ls in that directory.
However, since I can only find ways of creating... | Python Argparse without command keyword | -0.099668 | 0 | 0 | 813 |
13,239,004 | 2012-11-05T19:30:00.000 | 0 | 0 | 0 | 0 | python,sql,postgresql,pgadmin | 52,581,750 | 3 | false | 0 | 0 | Although this is quite an old question, it doesn't seem to have a satisfying answer and I was struggling with the exact samen issue. With the arrival of SQL Server Management Studio 2018 edition - and probably somewhat before that - a pretty good solution was offered by Microsoft.
In SSMS on a database node in the obj... | 2 | 11 | 0 | I've looked a a number of questions on this site and cannot find an answer to the question: How to create multiple NEW tables in a database (in my case I am using PostgreSQL) from multiple CSV source files, where the new database table columns accurately reflect the data within the CSV columns?
I can write the CREATE T... | Create SQL table with correct column types from CSV | 0 | 1 | 0 | 7,124 |
13,239,004 | 2012-11-05T19:30:00.000 | 7 | 0 | 0 | 0 | python,sql,postgresql,pgadmin | 21,917,162 | 3 | false | 0 | 0 | I have been dealing with something similar, and ended up writing my own module to sniff datatypes by inspecting the source file. There is some wisdom among all the naysayers, but there can also be reasons this is worth doing, particularly when we don't have any control of the input data format (e.g. working with gover... | 2 | 11 | 0 | I've looked a a number of questions on this site and cannot find an answer to the question: How to create multiple NEW tables in a database (in my case I am using PostgreSQL) from multiple CSV source files, where the new database table columns accurately reflect the data within the CSV columns?
I can write the CREATE T... | Create SQL table with correct column types from CSV | 1 | 1 | 0 | 7,124 |
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