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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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Else clause on Python while statement
I've noticed the following code is legal in Python. My question is why? Is there a specific reason?
12 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...
In Python, how do I index a list with another list?
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which also demonstrates the power and flexibility of Python!
– crowie
Jun 27 '18 at 6:06
It's so...
combinations between two lists?
... here from Google and just looking for a way to get a Cartesian product in Python, itertools.product or a simple list comprehension may be what you are looking for - see the other answers.
Suppose len(list1) >= len(list2). Then what you appear to want is to take all permutations of length len(...
What do *args and **kwargs mean? [duplicate]
...s just a convention. It’s the * and ** that do the magic.
The official Python documentation has a more in-depth look.
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Random string generation with upper case letters and digits
...ercase + string.digits) for _ in range(N))
or even shorter starting with Python 3.6 using random.choices():
''.join(random.choices(string.ascii_uppercase + string.digits, k=N))
A cryptographically more secure version; see https://stackoverflow.com/a/23728630/2213647:
''.join(random.SystemRando...
Use of *args and **kwargs [duplicate]
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how would you look this up in the python help/documentation?
– Alex
Mar 28 '14 at 21:57
14
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How to read a file without newlines?
In Python, calling
9 Answers
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