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What's the simplest way to subtract a month from a date in Python?
...=d,month=m, year=y)
Info on monthrange from Get Last Day of the Month in Python
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Retrieving the output of subprocess.call() [duplicate]
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this page docs.python.org/library/subprocess.html#module-subprocess discourages using subprocess.PIPE, any idea how to overcome this?
– Vladimir Keleshev
Dec 13 '11 at 20:55
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Is there a way to pass optional parameters to a function?
Is there a way in Python to pass optional parameters to a function while calling it and in the function definition have some code based on "only if the optional parameter is passed"
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How to sort a list of strings numerically?
...at this sounds trivial but I did not realize that the sort() function of Python was weird. I have a list of "numbers" that are actually in string form, so I first convert them to ints, then attempt a sort.
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Should I use multiplication or division?
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Python:
time python -c 'for i in xrange(int(1e8)): t=12341234234.234 / 2.0'
real 0m26.676s
user 0m25.154s
sys 0m0.076s
time python -c 'for i in xrange(int(1e8)): t=12341234234.234 * 0.5'
real 0m17.932s
user ...
Round a Floating Point Number Down to the Nearest Integer?
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This seems like the most Pythonic approach.
– Gyan Veda
Jun 16 '14 at 19:40
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Remove duplicate dict in list in Python
...you can remove duplicates using set (using a set comprehension here, older python alternative would be set(tuple(d.items()) for d in l)) and, after that, re-create the dictionaries from tuples with dict.
where:
l is the original list
d is one of the dictionaries in the list
t is one of the tuples...
Python list subtraction operation
...is a "set subtraction" operation. Use the set data structure for that.
In Python 2.7:
x = {1,2,3,4,5,6,7,8,9,0}
y = {1,3,5,7,9}
print x - y
Output:
>>> print x - y
set([0, 8, 2, 4, 6])
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Removing multiple keys from a dictionary safely
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This. This is the clever Pythonista's choice. dict.pop() eliminates the need for key existence testing. Excellent.
– Cecil Curry
Mar 11 '16 at 1:51
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Why use def main()? [duplicate]
...on that is called when the program is executed. Using this if, we can make Python behave like them, which feels more familiar for many people.
Code will be cleaner, easier to read, and better organized. (yeah, I know this is subjective)
It will be possible to import that python code as a module wi...