python

access django session from a decorator

I have a decorator that I use for my views @valid_session from django.http import Http404 def valid_session(the_func): """ function to check if the user has a valid session """ def _decorated(*args, **kwargs): if ## check if username is in the request.session: raise Http404('not logged in.') else: return...

Problem with Classes in Python..

Ok guys, I'm really new at python (and programming itself) so sorry for my ignorance, but I really needed to ask this. So im doing a wxPython project where I added several tabs for a notebook (each tab of the notebook = a class) and there is one tab where I added a checkbox (in a tab, lets call it for example Tab1), and what I want is t...

How to enter decimal/binary numbers when creating byte objects in python?

I'm using python 3.1.1. I know that I can create byte objects using the byte literal in the form of b'...'. In these byte objects, each byte can be represented as a character(in ascii code if I'm not wrong) or as a hexadecimal/octal number. Hexadecimal and octal numbers can be entered using an escape of \x for hexadecimal numbers and ju...

Python (windows) will open files from command line, but not from a script launched from eclipse

I'm pretty new to writing python for windows (linux is no problem), and am having problems getting python to recognize files when running scripts, though it behaves fine in the command line What am I doing wrong here? def verifyFile(x): # return os.path.isfile(x) This will return true (with a valid file, of course) when called ...

Trace/BPT trap when running feedparser inside a Thread object

Hello, I am trying to run a Thread to parse a list of links using the universal feed parser, but when I start the thread I get a Trace/BPT trap. Here's the code I am using: class parseRssFiles(Thread): def __init__ (self,rssLinks): Thread.__init__(self) self.rssLinks = rssLinks def run(self): self.rssContents =...

Matching First Alphanumeric Character skipping (The |An? )

I have a list of artists, albums and tracks that I want to sort using the first letter of their respective name. The issue arrives when I want to ignore "The ", "A ", "An " and other various non-alphanumeric characters (Talking to you "Weird Al" Yankovic and [dialog]). Django has a nice start '^(An?|The) +' but I want to ignore those a...

Getting weird python error when I run a simple django script in Eclipse, not happening in console

I am running a basic script that sets up the django environment by itself, to enable me to test the ORM features of django without having to implement web pages. The script then imports one of the types defined in my models. This error doesn't happen when I run this script from iPython, only from eclipse. Simply doing this import causes ...

Copy string - Python

Ok guys I imagine this is easy but I can't seem to find how to copy a string. Simply COPY to the system like CTRL+C on a text. Basically I want to copy a string so I can for example, lets say, paste(ctrl+v). Sorry for such a trivial question, haha. ...

Sqlite / SQLAlchemy: how to enforce Foreign Keys?

The new version of SQLite has the ability to enforce Foreign Key constraints, but for the sake of backwards-compatibility, you have to turn it on for each database connection separately! sqlite> PRAGMA foreign_keys = ON; I am using SQLAlchemy -- how can I make sure this always gets turned on? What I have tried is this: engine = sqlal...

How do I use Logging in the Django Debug Toolbar?

I would like to output debug messages in my django app at different points in a view function. The docs for the django-debug-toolbar say it uses the build in python logging but I can't find any more information then that. I don't really want to log to a file but to the info pane on the toolbar. How does this work? ...

[appengine] how to transfer a python object between two requests?

i want to process a python dict object in batches between two requests. i was wondering what's the best way to do it. i want to do that because my dict is big and i couldn't do the whole processing in 30s. thanks ...

Python NameError when attempting to use a user-defined class

I'm getting a weird instance of a NameError when attempting to use a class I wrote. In a directory, I have the following file structure: dir/ ReutersParser.py test.py reut-xxx.sgm Where my custom class is defined in ReutersParser.py and I have a test script defined in test.py. The ReutersParser looks something like this: from sg...

Simple pygtk and threads example please.

Hello, Can someone give me a simple example involving threads in this manner, please. Problem with my code is that when I click button One, GUI freezes until its finished. I want buttons to stay responsive when def is being executed. How can i fix that? class fun: wTree = None def __init__( self ): ...

Profiling python C extensions

I have developed a python C-extension that receives data from python and compute some cpu intensive calculations. It's possible to profile the C-extension? The problem here is that writing a sample test in C to be profiled would be challenging because the code rely on particular inputs and data structures (generated by python control co...

Python: eliminating stack traces into library code?

When I get a runtime exception from the standard library, it's almost always a problem in my code and not in the library code. Is there a way to truncate the exception stack trace so that it doesn't show the guts of the library package? For example, I would like to get this: Traceback (most recent call last): File "./lmd3-mkhead.py"...

(Python) Why do I always have to type absolute paths in file functions?

For instance, if I have: C:\42\main.py and C:\42\info.txt and I want to read info.txt from main.py, I have to input "C:\42\info.txt" instad of just "info.txt". Is it supposed to be like that? If not, how can I fix it? ...

Why can't I download a whole image file with urllib2.urlopen()

When I run the following code, it only seems to be downloading the first little bit of the file and then exiting. Occassionally, I will get a 10054 error, but usually it just exits without getting the whole file. My internet connection is crappy wireless, and I often get broken downloads on larger files in firefox, but my browser has no ...

Help calling def from class.

Hello, Noob question... class msgbox: def __init__(self, lbl_msg = '', dlg_title = ''): self.wTree = gtk.glade.XML('msgbox.glade') self.wTree.get_widget('dialog1').set_title(dlg_title) self.wTree.get_widget('label1').set_text(lbl_msg) self.wTree.signal_autoconnect( {'on_okbutto...

Real-time data on webpage with jQuery

I would like a webpage that constantly updates a graph with new data as it arrives. Regularly, all the data you have is passed to the page at the beginning of the request. However, I need the page to be able to update itself with fresh information every few seconds to redraw the graph. Background The webpage will be similar to this htt...

Storing URLs while Spidering

I created a little web spider in python which I'm using to collect URLs. I'm not interested in the content. Right now I'm keeping all the visited URLs in a set in memory, because I don't want my spider to visit URLs twice. Of course that's a very limited way of accomplishing this. So what's the best way to keep track of my visited URLs?...