I have a list of instances of the class 'Chromosome'. The list is sorted on the Chromosome attribute 'equation' I now want to remove instances where the attribute 'equation' is the same, leaving only one. I don't know how to pass the key, ie the ?, so that it groups on 'equation'. b = [a for a,b in groupby(list, ?)] ...
I'm pretty sure the following error is related to the fact that I'm sharing code via SVN with a colleague that is using a Windows system. Myself, I use Python on Mac, editing with TextMate. #!/usr/bin/python import os from google.appengine.api import users from google.appengine.ext import webapp ... When running that code, I get a...
What I need to do is run a process that might take hours to complete from a Django view. I don't need to the state or communicate with it but I need that view to redirect away right after starting the process. I've tried using subprocess.Popen, using it within a new threading.Thread, multiprocessing.Process - parent process keeps hangin...
I'm trying to use some python-2.1 code to control another program (ArcGIS). The version of python I am using is 2.5. I am getting the following error message when I run the code. <type'exceptions.ImportError'>: No module named win32api Failed to execute (polyline2geonetwork2). I tried installing pywin32-214.win32-py2.5.exe but I still...
hello, I'm new to python. I want to extract some text from the CNN website. I want to use python win32com module. EDIT: on [why win32com] Because of javascript in website... I thought of using win32com; I have looked for other solution but without success in regard to my requirement. In fact, I wanted to use mechanize or a similiar solut...
I recently encountered a scenario in which if a set only contained a single element, I wanted to do something with that element. To get the element, I settled on this approach: element = list(myset)[0] But this isn't very satisfying, as it creates an unnecessary list. It could also be done with iteration, but iteration seems unnatur...
I have an web address: http://www.example.com/org/companyA I want to be able to pass CompanyA to a view using regular expressions. This is what I have: (r'^org/?P<company_name>\w+/$',"orgman.views.orgman") and it doesn't match. Ideally all URL's that look like example.com/org/X would pass x to the view. Thanks in advance! ...
I am trying to use PyQt's Resource System but it appears I have no clue what I am doing! I already have to application created, along with its GUI I am just trying to import some images to use with the program. I used the QtDesigner to create the resource file and I compiled it using pyrcc4.exe. But when I attempt to import the resource...
I am writing a function to extract decimals from a number. Ignore the exception and its syntax, I am working on 2.5.2 (default Leopard version). My function does not yet handle 0's. My issue is, the function produces random errors with certain numbers, and I don't understand the reason. I will post an error readout after the code. Func...
I have a list of columns that I will be analyzing. Instead of referring back to the specific index such as data[1][2], I'd like to assign a name to a column and then loop through the rows of the columns for different tasks. How do I assign a name to a column and then is this the correct format to refer back to it? for x in range (len(...
I have a C++ app that uses Python to load some scripts. It calls some functions in the scripts, and everything works fine until the app exits and calls Py_Finalize. Then it displays the following: (GetName is a function in one of the scripts) Exception AttributeError: "'module' object has no attribute 'GetName'" in 'garbage collection' ...
I've tried endlessly to get pycairo to work on Windows, but version 1.8.8 won't install. Is there something comparable out there that actually works on Windows? ...
I don't want to restart the memcached server! ...
background: url({{ MEDIA_URL }}/bg.jpg); That does not work, because this Django template function only works in .html! ...
Is there a Python library for generating Sankey diagrams? I've seen this list of Sankey diagram software, but no Python. ...
I use a negative index in replacement fields to output a formatted list,but it raises a TypeError.The codes are as follows: >>> a=[1,2,3] >>> a[2] 3 >>> a[-1] 3 >>> 'The last:{0[2]}'.format(a) 'The last:3' >>> 'The last:{0[-1]}'.format(a) Traceback (most recent call last): File "", line 1, in TypeError: list indices must be integers...
I know that NLTK has it. But any else? ...
Two libraries for Mysql. I've always used _mysql because it's simpler. Can anyone tell me the difference, and why I should use which one in certain occasions? ...
Hi I want to install satchmo in my virtual hosting, but they dont provide ssh access for it. I want to know if it is possible. As i can see, adding some Satchmo requirements(http://www.satchmoproject.com/docs/svn/requirements.html) to pythonpath in my .fcgi file seems to be working, but some requirements like pycrypto and trml2pdf look ...
I had an idea that would require me be able to send and receive messages via the standard messenger protocols such as msn, icq, aim, skype, etc... I am currently only familiar with PHP and Python and would thus enjoy a library which I can access from said languages. I have found phurple (http://sourceforge.net/projects/phurple/) for php...