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Python: Select subset from list based on index set
...he first option is equivalent to itertools.compress available since Python 2.7/3.1. See @Gary Kerr's answer.
property_asel = list(itertools.compress(property_a, good_objects))
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Python: print a generator expression?
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Basically all the other comprehensions available in Python 3 and Python 2.7 is just syntactic sugar around a generator expression. Set comprehensions:
>>> {x*x for x in range(10)}
{0, 1, 4, 81, 64, 9, 16, 49, 25, 36}
>>> set(x*x for x in range(10))
{0, 1, 4, 81, 64, 9, 16, 49,...
What is the difference between `sorted(list)` vs `list.sort()`?
...can see here, we've disproven an older list creation expense myth:
Python 2.7
>>> timeit.repeat("next(shuffled_iter).sort()", setup=setup, number = 1000)
[3.75168503401801, 3.7473005310166627, 3.753129180986434]
>>> timeit.repeat("sorted(next(shuffled_iter))", setup=setup, number...
How do you create nested dict in Python?
...913 25.3754 13.913C26.5612 13.913 27.4607 13.4902 28.1109 12.6616C28.1109 12.7229 28.1161 12.7799 28.121 12.8346C28.1256 12.8854 28.1301 12.9342 28.1301 12.983C28.1301 14.4373 27.2502 15.2321 25.777 15.2321C24.8349 15.2321 24.1352 14.9821 23.5661 14.7787C23.176 14.6393 22.8472 14.5218 22.5437 14.521...
Importing from builtin library when module with same name exists
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This is the solution. I checked for Python 2.7.6 and this is required, it's still not the default.
– Havok
Jul 14 '14 at 20:33
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How can I use if/else in a dictionary comprehension?
Does there exist a way in Python 2.7+ to make something like the following?
4 Answers
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How should I read a file line-by-line in Python?
...913 25.3754 13.913C26.5612 13.913 27.4607 13.4902 28.1109 12.6616C28.1109 12.7229 28.1161 12.7799 28.121 12.8346C28.1256 12.8854 28.1301 12.9342 28.1301 12.983C28.1301 14.4373 27.2502 15.2321 25.777 15.2321C24.8349 15.2321 24.1352 14.9821 23.5661 14.7787C23.176 14.6393 22.8472 14.5218 22.5437 14.521...
How to automatically generate N “distinct” colors?
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Looks great, but gets stuck when I try to run it on 2.7
– Elad Weiss
Mar 5 '18 at 10:25
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Is it worth using Python's re.compile?
... or more. The compiled version is faster for 1-100 loops. (On both pythons 2.7 and 3.4).
– Zitrax
Nov 23 '15 at 12:34
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How do I run a Python program in the Command Prompt in Windows 7?
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Assuming you have Python2.7 installed
Goto the Start Menu
Right Click "Computer"
Select "Properties"
A dialog should pop up with a link on the left called "Advanced system settings". Click it.
In the System Properties dialog, click the button cal...