Apparently xrange is faster but I have no idea why it’s faster (and no proof besides the anecdotal so far that it is faster) or what besides that is different about for i in range(0, 20): for i in xrange(0, 20): 28 s 28 In Python 2.x: range creates a list, so if you do … Read more
__future__ frequently appears in Python modules. I do not understand what __future__ is for and how/when to use it even after reading the Python’s __future__ doc. Can anyone explain with examples? A few answers regarding the basic usage of __future__ I’ve received seemed correct. However, I need to understand one more thing regarding how __future__ … Read more
In Python, what are the differences between the urllib, urllib2, urllib3 and requests modules? Why are there three? They seem to do the same thing… 1Best Answer 11 I know it’s been said already, but I’d highly recommend the requests Python package. If you’ve used languages other than python, you’re probably thinking urllib and urllib2 … Read more
In Python 2.7, I could get dictionary keys, values, or items as a list: >>> newdict = {1:0, 2:0, 3:0} >>> newdict.keys() [1, 2, 3] Now, in Python >= 3.3, I get something like this: >>> newdict.keys() dict_keys([1, 2, 3]) So, I have to do this to get a list: newlist = list() for i … Read more
I’m having problems dealing with unicode characters from text fetched from different web pages (on different sites). I am using BeautifulSoup. The problem is that the error is not always reproducible; it sometimes works with some pages, and sometimes, it barfs by throwing a UnicodeEncodeError. I have tried just about everything I can think of, … Read more
