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How to efficiently compare two unordered lists (not sets) in Python?
...e efficient method and clearly I drew a blank. After extensive testing in python 3 with the timeit module, sorted consistently comes out faster on lists of integers. On lists of, 1k items, about 1.5% slower and on short lists, 10 items, 7.5% slower. Thoughts?
– arctelix
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append new row to old csv file python
...new row to my old csv file. Basically, it gets updated each time I run the Python script.
7 Answers
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Python JSON serialize a Decimal object
...ow that I tried Michał Marczyk's answer on my web server that was running Python 2.6.5 and it worked fine. However, I upgraded to Python 2.7 and it stopped working. I tried to think of some sort of way to encode Decimal objects and this is what I came up with:
import decimal
class DecimalEncoder(...
How to use filter, map, and reduce in Python 3
filter , map , and reduce work perfectly in Python 2. Here is an example:
7 Answers
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What's the bad magic number error?
What's the "Bad magic number" ImportError in python, and how do I fix it?
15 Answers
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Convert decimal to binary in python [duplicate]
Is there any module or function in python I can use to convert a decimal number to its binary equivalent?
I am able to convert binary to decimal using int('[binary_value]',2), so any way to do the reverse without writing the code to do it myself?
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Sibling package imports
...h, if only other languages would make the same process as easy as it is in Python. I see why everyone loves this language. Btw, documentation is also excellent. I love extracting return types from unstructured text, it's a nice change from Javadoc and phpdoc. ffs....
– matt
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In Python, how do I indicate I'm overriding a method?
...ace" implementing class while renaming a method in the "interface"..
Well Python ain't Java but Python has power -- and explicit is better than implicit -- and there are real concrete cases in the real world where this thing would have helped me.
So here is a sketch of overrides decorator. This wi...
Multiprocessing vs Threading Python [duplicate]
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The GIL in cPython does not protect your program state. It protects the interpreter's state.
– Jeremy Brown
Jun 15 '10 at 14:19
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How can I check for NaN values?
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@charlie-parker : In Python3, math.isnan is still a part of the math module. docs.python.org/3/library/math.html#math.isnan . Use numpy.isnan if you wish, this answer is just a suggestion.
– gimel
Sep 8 '16 ...