I recently came across a syntax I never seen before when I learned python nor in most tutorials, the .. notation, it looks something like this: f = 1..__truediv__ # or 1..__div__ for python 2 print(f(8)) # prints 0.125 I figured it was exactly the same as (except it’s longer, of course): f = lambda … Read more
My local machine is running Python 2.5 and Nginx on Ubuntu 8.10, with Django builded from latest development trunk. For every URL I request, it throws: TemplateDoesNotExist at /appname/path appname/template_name.html Django tried loading these templates, in this order: * Using loader django.template.loaders.filesystem.function: * Using loader django.template.loaders.app_directories.function: TEMPLATE_DIRS (‘/usr/lib/python2.5/site-packages/projectname/templates’,) Is it looking for /usr/lib/python2.5/site-packages/projectname/templates/appname/template_name.html in this … Read more
I had two versions of Python installed on my machine (versions 2.6 and 2.5). I want to run 2.6 for one project and 2.5 for another. How can I specify which I want to use? I am working on Windows XP SP2. 20 Answers 20
this is my code: print str(float(1/3))+’%’ and it shows: 0.0% but I want to get 33% What can I do? 7 Answers 7
This question already has answers here: How to print without a newline or space (25 answers) Closed 5 years ago. In python, if I say print ‘h’ I get the letter h and a newline. If I say print ‘h’, I get the letter h and no newline. If I say print ‘h’, print ‘m’, … Read more
What are the libraries that support XPath? Is there a full implementation? How is the library used? Where is its website? 11 Answers 11
I’m pulling data out of a Google doc, processing it, and writing it to a file (that eventually I will paste into a WordPress page). It has some non-ASCII symbols. How can I convert these safely to symbols that can be used in HTML source? Currently I’m converting everything to Unicode on the way in, … Read more
I’m trying to develop a simple web scraper. I want to extract text without the HTML code. It works on plain HTML, but not in some pages where JavaScript code adds text. For example, if some JavaScript code adds some text, I can’t see it, because when I call: response = urllib2.urlopen(request) I get the … Read more
Python’s math module contain handy functions like floor & ceil. These functions take a floating point number and return the nearest integer below or above it. However these functions return the answer as a floating point number. For example: import math f=math.floor(2.3) Now f returns: 2.0 What is the safest way to get an integer … Read more
I have a generator function like the following: def myfunct(): … yield result The usual way to call this function would be: for r in myfunct(): dostuff(r) My question, is there a way to get just one element from the generator whenever I like? For example, I’d like to do something like: while True: … … Read more
