I'm having trouble to understand how a classmethod object works in Python, especially in the context of metaclasses and in __new__. In my special case I would like to get the name of a classmethod member, when I iterate through the members that were given to __new__. For normal methods the name is simply stored in a __name__ attribute, ...
Can we control where matplotlib places figures on the screen? I want to generate four figures (in four separate windows) that do not overlap. Thanks. ...
I need to digitally sign some text in python using a private key stored in a .pem file. It seems like M2Crypto is the preferred way to do that these days, so that's what I'm using. I think I get most of it, but I'm confused about how to configure padding. To be specific, I need to verify the signature in an iPhone app, using a padding ...
I want to convert an int64 numpy array to a uint64 numpy array, adding 2**63 to the values in the process so that they are still within the valid range allowed by the arrays. So for example if I start from a = np.array([-2**63,2**63-1], dtype=np.int64) I want to end up with np.array([0.,2**64], dtype=np.uint64) Sounds simple at fir...
I am trying to build python2.6 with support for the sqlite3 module. I have successfully built and installed the sqlite-amalgamation to a non standard path: ./configure --prefix=/my/non/standard/install/path/sqlite/3.6.20/ make make install I would like the python2.6 build to use this path & build the sqlite3 module. I checked './config...
Basically, I have a list like: [START, 'foo', 'bar', 'spam', eggs', END] and the START/END identifiers are necessary for later so I can compare later on. Right now, I have it set up like this: START = object() END = object() This works fine, but it suffers from the problem of not working with pickling. I tried doing it the following w...
When creating decorators for use on class methods, I'm having trouble when the decorator mechanism is a class rather than a function/closure. When the class form is used, my decorator doesn't get treated as a bound method. Generally I prefer to use the function form for decorators but in this case I have to use an existing class to imp...
I have a small Python web application using the Cherrypy framework. I am by no means an expert in web servers. I got Cherrypy working with Apache using mod_python on our Ubuntu server. This time, however, I have to use Windows 2003 and IIS 6.0 to host my site. The site runs perfectly as a stand alone server - I am just so lost when it...
Hi, My test uses Selenium to loop through a CSV list of URLs via an HTTP proxy (working script below). As I watch the script run I can see about 10% of the calls produce "Proxy error: 502" ("Bad_Gateway"); however, the errors are not captured by my catch-all "except Exception" clause -- ie: instead of writing 'error' in the appropriate r...
How can you convert the following code to PHP? summat = [sum(arra[i:i+4]) for i in range(0,len(arra),4)] My attempt $summat = array() foreach ( range(0, $arra.length, 4) as $i) { $summat = array ( array_sum( array_slice( $array, $i, $i+5) ) ) // don't know how to append the sums the array ...
Hi, My Django application uses memcached via cmemcache. An issue sprung up when I was trying to monitor its usage: I tried to access stats memcached provides through both Django and cmemcache: django: from django.core.cache import cache cache._cache.get_stats() [[email protected]] mcm_server_stats():3027: unknown stat variable: ...
I'm using Komodo Edit for Python development, and I want to get the best out of the auto complete. If I do this: a = A() a. I can see a list of members of A. But if I do this: a = [A()] b = a[0] b. It does not work. I want to be able to do this: a = [A()] b = a[0] """b Type: A """ b. So how can I tell the auto complete that ...
How can I plot an 2D array as an image with Matplotlib having the y scale relative to the power of two of the y value? For instance the first row of my array will have a height in the image of 1, the second row will have a height of 4, etc. (units are irrelevant) It's not simple to explain with words so look at this image please (that's...
I'm trying to convert a Python dictionary into a Python list, in order to perform some calculations. #My dictionary dict = {} dict['Capital']="London" dict['Food']="Fish&Chips" dict['2012']="Olympics" #lists temp = [] dictList = [] #My attempt: for key, value in dict.iteritems(): aKey = key aValue = value temp.append(aKey)...
Hi, I have made some changes in a python module in my checked out copy of a repository, and need to test them. However, when I try to run a script that uses the module, it keeps importing the module from the trunk of the repository, which is of no use to me. I tried setting PYTHONPATH, which did nothing at all. After some searching a...
My application prints a PDF to a temporary file. How can I open that file with the default application in Python? I need a solution for Windows Linux (Ubuntu with Xfce if there's nothing more general.) Related Open document with default application in Python ...
I considered using tmpnam to set the output file name of a QPrinter. But the Python documentation recommends against using it. os.tmpnam() Return a unique path name that is reasonable for creating a temporary file. ... Applications are responsible for properly creating and managing files created using paths returned by t...
This is a very specific inforgraphic challange altough the fundemental question is how do you build archs between words using matplotlib, cario or an other python libary. Given a the following data structure. me, you, 7 | me, apple, 9 | apple, you, 1 | bike, me, 5 Names would be displayed horizontally the names with the most relation...
How can I reverse a word in Vim? Preferably with a regex or normal-mode commands, but other methods are welcome too: word => drow Thanks for your help! PS: I'm in windows XP Python is built in supported in my vim, but not Perl. ...
Hi, so I've read the Bittorrent specification and done a number of searches, trying to find out how I can get the seeds/peers/downloaded data from a torrent tracker (using Python). I can calculate the info hash from a Torrent no problem, which matches up with the info hash given by various working torrent applications. However, when I t...