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What are some (concrete) use-cases for metaclasses?
...ling to actually change these values. Maybe David Beazley can.
Anyway, in Python 3, metaclasses also have the __prepare__ method, which lets you evaluate the class body into a mapping other than a dict, thus supporting ordered attributes, overloaded attributes, and other wicked cool stuff:
import ...
Append integer to beginning of list in Python [duplicate]
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It would be nice for python to add a list.push_front(item) function. This will be obvious and less error-prone.
– Kemin Zhou
Sep 18 '16 at 3:21
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Most Pythonic way to provide global configuration variables in config.py? [closed]
...ndless quest in over-complicating simple stuff, I am researching the most 'Pythonic' way to provide global configuration variables inside the typical ' config.py ' found in Python egg packages.
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Peak-finding algorithm for Python/SciPy
... that only works on those particular images. I adapted a MATLAB script to Python and it works decently.
– endolith
Dec 17 '09 at 18:30
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Split a string by a delimiter in python
...stackoverflow.com%2fquestions%2f3475251%2fsplit-a-string-by-a-delimiter-in-python%23new-answer', 'question_page');
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Python - abs vs fabs
I noticed that in python there are two similar looking methods for finding the absolute value of a number:
4 Answers
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Convert sqlalchemy row object to python dict
...e function is too long and not suited for some tastes here is a one liner (python 2.7+)
row2dict = lambda r: {c.name: str(getattr(r, c.name)) for c in r.__table__.columns}
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How do I remove a substring from the end of a string in Python?
...ou're probably better of looking into the urlparse library that comes with python.
If you on the other hand you simply want to remove everything after the final '.' in a string then
url.rsplit('.',1)[0]
will work. Or if you want just want everything up to the first '.' then try
url.split...
How to make a class JSON serializable
How to make a Python class serializable?
33 Answers
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It is more efficient to use if-return-return or if-else-return?
...code has to perform a jump if the if condition is false anyway.
Note that Python supports a syntax that allows you to use only one return statement in your case:
return A+1 if A > B else A-1
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