I have an application with an interstitial page to hold the user while an intensive operation runs in the background (takes anywhere from 30 secs to 1 minute). Once the operation is done, the user is redirected to the results page. Once on the result page, typical user behavior is to hit the 'back' button to perform the operation on a d...
Does anyone know how you can turn off autocompletion on a textfield in Django? For example, a form that I generate from my model has an input field for a credit card number. It is bad practice to leave autocompletion on. When making the form by hand, I'd add a autocomplete="off" statement, but how do you do it in Django and still retai...
If there are several methods in the test class, I found that the order to execute is alphabetical. But I want to customize the order of execution. How to define the execution order? For example: testTestA will be loaded first than testTestB. class Test(TestCase): def setUp(self): ... def testTestB(self): #test ...
I have two Python functions, both of which take variable arguments in their function definitions. To give a simple example: def func1(*args): for arg in args: print arg def func2(*args): return [2 * arg for arg in args] I'd like to compose them -- as in func1(func2(3, 4, 5)) -- but I don't want args in func1 to be ([6...
Hello what am i doing wrong? class MyModel(models.Model): name = models.CharField(max_length=100, verbose_name=_("Name"), blank=False, null=False) rating = models.DecimalField(max_digits=2, decimal_places=2, default=0) id i do something like that: average = count/len(votes) mymodel.rating = average mymodel.save() count is the...
I am trying to set up multiple virtual hosts on the same server with Nginx and Apache and have run into a curious configuration issue. I have nginx is configured with a generic upstream to apache. upstream backend { server 1.1.1.1:8080; } I'm trying to set up multiple subdomains in nginx that hit different mountpoints in apache. E...
I want to display a gtk.Image with a high level of zoom, but scale the image to a new pixbuf with the gtk.gdk.Pixbuf methods waste a lot of memory and processor. Are there some simply way to display a zoomed image? ...
I know what Cythons purpose is. It's to write compilable C extensions in a Python-like language in order to produce speedups in your code. What I would like to know (and can't seem to find using my google-fu) is if Cython can somehow compile into an executable format since it already seems to break python code down into C. I already u...
Hi, I'm currently launching a programme using subprocess.Popen(cmd, shell=TRUE) I'm fairly new to Python, but it 'feels' like there ought to be some api that lets me do something similar to: subprocess.Popen(cmd, shell=TRUE, postexec_fn=function_to_call_on_exit) I am doing this so that function_to_call_on_exit can do something base...
I have a Python C API extension module which occassionally falls over with an uninformative "MemoryError". It's clearly not an error that's catered for by the module's exception handlers. How do I get a more informative error traceback so I can figure out what's gone wrong in the extension module? Perhaps the question should be, given ...
I understand the gist of the code, that it forms permutations; however, I was wondering if someone could explain exactly what is going on in the return statement. def perm(l): sz = len(l) print (l) if sz <= 1: print ('sz <= 1') return [l] return [p[:i]+[l[0]]+p[i:] for i in range(sz) for p in perm(l[1:])]...
Hey I have to search through a list and replace all occurrences of one element with another. I know I have to first find the index of all the elements, and then replace them, but my attempts in code are getting me nowhere. Any suggestions? ...
I have two separately made python scripts one that makes a sine wave sound based off time, and another that produces a sine wave graph that is based off the same time factors. I need help combining them into one running file. Here's the first: from struct import pack from math import sin, pi import time def au_file(name, freq, freq1,...
I have a program that monitors a folder with word documents for any modifications made on the files. The error -Windows Error[2] The system cannot find the file specified- comes when I run the program, open a .doc within the folder make some changes and save it. Any suggestions on how to fix this? Edit1: the actual error code is like th...
I am attempting to have mechanize select a form from a page, but the form in question has no "name" attribute in the html. What should I do? when I try to use br.select_form(name = "") I get errors that no form is declared with that name, and the function requires a name input. There is only one form on the page, is there some other w...
I'm getting the following error when attempting to upload a file to S3: S3StorageError: <?xml version="1.0" encoding="UTF-8"?> <Error><Code>AccessDenied</Code><Message>AWS authentication requires a valid Date or x-amz-date header</Message><RequestId>7910FF83F3FE17E2</RequestId><HostId>EjycXTgSwUkx19YNkpAoY2UDDur/0d5SMvGJUicpN6qCZFa2Ouqc...
I just want to import my facebook status and photos to my personal django website but all the examples and documentation i can find are for developing facebook applications. A simple rss feed would be enough but it doesnt seem to exist in facebook. Do i really have to create a full facebook app to do this? ...
I'm having a weird problem with the following piece of code. from math import sqrt def Permute(array): result1 = [] result2 = [] if len(array) <= 1: return array for subarray in Permute(array[1:]): for i in range(len(array)): temp1 = subarray[:i]+array[0]+subarray[i:] temp2 = [0] ...
What is the usual/clearest way to write this in Python? value, _ = func_returning_a_tuple() or: value = func_returning_a_tuple()[0] ...
I'm making a program where you're firing a 'blaster', and I have 5 ammo. I'm blasting an alien who has 5 health. At the end I instantiate the player and make him blast 6 times to check that the program works correctly. But the way I've done it makes it so that the amount won't decrease. Is there an easy fix to this, or do I just have to ...