Python College

Is the itertools C module included somehow in the main Python binary in 3.x? Assuming that the C m… Read more In Python 3.x, Why Is There Not An Itertools Shared-object On Disk?

I spent some time investigating the collections.namedtuple module a few weeks ago. The module uses … Read more Why Doesn't The Namedtuple Module Use A Metaclass To Create Nt Class Objects?

I'm reading each line of a file into both a list and a dict, with open('../data/title/prune… Read more Why Isn't My Dict Lookup Faster Than My List Lookup In Python?

There is puzzling (at least for me) behavior of Python's set in combination with NaNs (here liv… Read more Causes For Inconsistent Behavior When Adding Nans To A Set

When I try to use print without parentheses on a simple name in Python 3.4 I get: >>> prin… Read more Printing Without Parentheses Varying Error Message Using Python 3

I've heard that __slots__ makes objects faster by avoiding a dictionary lookup. My confusion co… Read more How Does __slots__ Avoid A Dictionary Lookup?

Our code takes 10 minutes to siphon thru 68,000 records when we use: new_file = new_file + line + s… Read more Why Is 'new_file += Line + String' So Much Faster Than 'new_file = New_file + Line + String'?

I'm using map_async to create a pool of 4 workers. And giving it a list of image files to proce… Read more Multiprocessing - Cancel Remaining Jobs In A Pool Without Destroying The Pool