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Revert the `--no-site-packages` option with virtualenv
...tual environment.
Where venv is the name of your virtual environment, and python3.4 corresponds to whichever version of python involved, for example:
$ rm venv/lib/python3.4/no-global-site-packages.txt
And if you change your mind and want to put it back:
$ touch venv/lib/python3.4/no-global-sit...
Quick easy way to migrate SQLite3 to MySQL? [closed]
...c database differences away for you. e.g. you get these in PHP (RedBean), Python (Django's ORM layer, Storm, SqlAlchemy), Ruby on Rails (ActiveRecord), Cocoa (CoreData)
i.e. you could do this:
Load data from source database using the ORM class.
Store data in memory or serialize to disk.
Store da...
Measuring elapsed time with the Time module
With the Time module in python is it possible to measure elapsed time? If so, how do I do that?
10 Answers
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Rolling or sliding window iterator?
...(aka sliding window) iterable over a sequence/iterator/generator. Default Python iteration can be considered a special case, where the window length is 1. I'm currently using the following code. Does anyone have a more Pythonic, less verbose, or more efficient method for doing this?
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Python - Passing a function into another function
I am solving a puzzle using python and depending on which puzzle I am solving I will have to use a special set of rules. How can I pass a function into another function in Python?
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How can I check if a key exists in a dictionary? [duplicate]
...in array:
# do something
Associative arrays are called dictionaries in Python and you can learn more about them in the stdtypes documentation.
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How do I get PyLint to recognize numpy members?
I am running PyLint on a Python project. PyLint makes many complaints about being unable to find numpy members. How can I avoid this while avoiding skipping membership checks.
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Position of least significant bit that is set
...he corresponding assembly command when available.
– Jérémie
May 20 '12 at 21:20
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How to merge dictionaries of dictionaries?
...tate the first argument; that makes the "reduce" easier to explain]
ps in python 3, you will also need from functools import reduce
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Rotating a two-dimensional array in Python
...
That's a clever bit.
First, as noted in a comment, in Python 3 zip() returns an iterator, so you need to enclose the whole thing in list() to get an actual list back out, so as of 2020 it's actually:
list(zip(*original[::-1]))
Here's the breakdown:
[::-1] - makes a shallow co...