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“ImportError: No module named” when trying to run Python script
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edited May 23 '17 at 11:33
Community♦
111 silver badge
answered Mar 25 '13 at 18:24
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How to get cumulative sum
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230
select t1.id, t1.SomeNumt, SUM(t2.SomeNumt) as sum
from @t t1
inner join @t t2 on t1.id >= t...
Version number comparison in Python
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37
Remove the uninteresting part of the string (trailing zeroes and dots), and then compare the li...
Split list into smaller lists (split in half)
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238
A = [1,2,3,4,5,6]
B = A[:len(A)//2]
C = A[len(A)//2:]
If you want a function:
def split_list...
How to check if hex color is “too black”?
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AlnitakAlnitak
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Is there a zip-like function that pads to longest length in Python?
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In Python 3 you can use itertools.zip_longest
>>> list(itertools.zip_longest(a, b, c))
[('a1', 'b1', 'c1'), (None, 'b2', 'c2'), (None, 'b3', None)]
You can pad with a different value than None by using the fillvalue paramet...
Python element-wise tuple operations like sum
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138
import operator
tuple(map(operator.add, a, b))
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Pandas - How to flatten a hierarchical index in columns
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edited Jan 17 '14 at 19:36
answered Jan 24 '13 at 18:37
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Fastest hash for non-cryptographic uses?
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