I am developing a GPL-licensed application in Python and need to know if the GPL allows my program to use proprietary plug-ins. This is what the FSF has to say on the issue: If a program released under the GPL uses plug-ins, what are the requirements for the licenses of a plug-in? It depends on how the program invokes its plug-i...
There seem to be many ways to define Singletons in python. I was wondering if there is a consensus opinion on StackOverflow. ...
I have a tree structure in memory that I would like to render in HTML using a Django template. class Node(): name = "node name" children = [] There will be some object root that is a Node, and children is a list of Nodes. root will be passed in the content of the template. I have found this one discussion of how this might be ac...
This is something that I think would be very useful. Basically, I'd like there to be a way to edit python source programmatically without requiring human intervention. There are a couple of things I would like to do with this: 1) Edit the configuration of python apps that use source modules for configuration. 2) Set up a "template"...
I am sketching the architecture for a set of programs that share various interrelated objects stored in a database. I want one of the programs to act as a service which provides a higher level interface for operations on these objects, and the other programs to access the objects through that service. I am currently aiming for Python an...
I have some kind of test data and want to create an unit test for each item. My first idea was to do it like this: import unittest l = [["foo", "a", "a",], ["bar", "a", "b"], ["lee", "b", "b"]] class TestSequence(unittest.TestCase): def testsample(self): for name, a,b in l: print "test", name self.a...
I need to launch a server on the remote machine and retrieve the port number that the server process is lsitening on. When invoked, the server will listen on a random port and output the port number on stderr. I want to automate the process of logging on to the remote machine, launching the process, and retrieving the port number. I wr...
I'm trying to extend some "base" classes in Python: class xlist (list): def len(self): return len(self) def add(self, *args): self.extend(args) return None class xint (int): def add(self, value): self += value return self x = xlist([1,2,3]) print x.len() ## >>> 3 ok print x ...
I noticed that many people here use TextMate for coding on OS X. I've recently started using it, and although I like its minimalistic interface, it makes it harder to stumble upon cool features if you don't know what you're looking for. So, what feature have you found most helpful for coding (mainly in Python)? Are there any third-party...
How would you go about finding out how much memory is being used by an object in python? I know it is possible to find out how much is used by a block of code, but not by an instantiated object anytime in its life, which is what I want. EDIT: decided to go with the stats that task manager gives me. Based on the strong evidence that wha...
A reliable coder friend told me that Python's current multi-threading implementation is seriously buggy - enough to avoid using altogether. What can said about this rumor? ...
What's the best way to specify a proxy with username and password for an http connection in python? ...
In the transition to newforms admin I'm having difficulty figuring out how specify core=False for ImageFields. I get the following error: TypeError: __init__() got an unexpected keyword argument 'core' [Edit] However, by just removing the core argument I get a "This field is required." error in the admin interface on attempted submis...
Is there something like the Python descriptor protocol implemented in other languages? It seems like a nice way to increase modularity/encapsulation without bloating your containing class' implementation, but I've never heard of a similar thing in any other languages. Is it likely absent from other languages because of the lookup overhea...
In another question I posted yesterday, I got very good advice on how a Python script could be run as a service in Windows. What I'm left wondering is: How is Windows aware of the services that can be managed in the native tools ("services" window in "administrative tools"). I. e. what is the Windows equivalent of putting a start/stop sc...
Given a python object of any kind, is there an easy way to get a list of all methods that this object has? Or, if this is not possible, at least an easy way to check if it has a particular method other than simply checking if an error occurs when the method is called. ...
I am taking a class that requires Python. We will review the language in class next week, and I am a quick study on new languages, but I was wondering if there are any really great Python books I can grab while I am struggling through the basics of setting up my IDE, server environment and all those other "gotchas" that come with a new p...
What's the best toolkit for doing 2d game programming with Python? I've heard of pygame but is there anything I should add to it or is there another group of modules that surpasses it? ...
Is there anything similar to rails' scaffolding fo pylons? I've been poking around google, but fofund only this thing caled dbsprockets, which is fine, although probably way to much for my needs. What i really need is a basic CRUD thas is based on the SQLAlchemy model. ...
I am starting to use Python (specifically because of Django) and I would like to remove the burden for exhaustive testing by performing some static analysis. What tools/parameters/etc. exist to detect issues at compile time that would otherwise show up during runtime? (type errors are probably the most obvious case of this, but undefine...