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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]
...
how would you look this up in the python help/documentation?
– Alex
Mar 28 '14 at 21:57
14
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Loading and parsing a JSON file with multiple JSON objects
I am trying to load and parse a JSON file in Python . But I'm stuck trying to load the file:
3 Answers
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How to read a file without newlines?
In Python, calling
9 Answers
9
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How to unzip a list of tuples into individual lists? [duplicate]
...into two independent lists. I'm looking for some standardized operation in Python.
2 Answers
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Python/postgres/psycopg2: getting ID of row just inserted
I'm using Python and psycopg2 to interface to postgres.
3 Answers
3
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What does pylint's “Too few public methods” message mean
...able/
import attr
@attr.s
class MyClass(object): # or just MyClass: for Python 3
foo = attr.ib()
bar = attr.ib()
What you get extra: not writing constructors, default values, validation, __repr__, read-only objects (to replace namedtuples, even in Python 2) and more.
b) Use dataclasses...
How to mock an import
...lso.
b_mock.func.return_value = 'spam'
A.a() # returns 'spam'
Note for Python 3:
As stated in the changelog for 3.0, __builtin__ is now named builtins:
Renamed module __builtin__ to builtins (removing the underscores, adding an ‘s’).
The code in this answer works fine if you replace __...