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How do I initialize the base (super) class?
In Python, consider I have the following code:
4 Answers
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Python: Find in list
...exactly equivalent to
matches = filter(fulfills_some_condition, lst)
in Python 2. Here you can see higher-order functions at work. In Python 3, filter doesn't return a list, but a generator-like object.
Finding the first occurrence
If you only want the first thing that matches a condition (but ...
Python loop that also accesses previous and next values
... accessing the previous, current, and next items? Like this C/C++ code, in Python?
14 Answers
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Printing tuple with string formatting in Python
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In Python 3 print is a function, not a statement, so you have to write print(....).
– J.G.
May 16 at 17:09
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How to get UTC time in Python?
...t dates. The results of such substraction is a timedelta object.
From the python docs:
class datetime.timedelta([days[, seconds[, microseconds[, milliseconds[, minutes[, hours[, weeks]]]]]]])
And this means that by default you can get any of the fields mentioned in it's definition -
days, secon...
How to send cookies in a post request with the Python Requests library?
...n: This question and the code in the answer is about setting a cookie in a Python request. The request does something similar to a browser request, but no browsers are involved.
– DDay
Jan 20 at 23:03
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Get exception description and stack trace which caused an exception, all as a string
I've seen a lot of posts about stack trace and exceptions in Python. But haven't found what I need.
11 Answers
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How can you set class attributes from variable arguments (kwargs) in python
...he keys beforehand (use iteritems instead of items if you’re still using Python 2.x).
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Version number comparison in Python
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Note cmp() has been removed in Python 3: docs.python.org/3.0/whatsnew/3.0.html#ordering-comparisons
– Dominic Cleal
May 12 '14 at 12:59
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Any reason not to use '+' to concatenate two strings?
A common antipattern in Python is to concatenate a sequence of strings using + in a loop. This is bad because the Python interpreter has to create a new string object for each iteration, and it ends up taking quadratic time. (Recent versions of CPython can apparently optimize this in some cases, b...