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What will happen if I modify a Python script while it's running?
Imagine a python script that will take a long time to run, what will happen if I modify it while it's running? Will the result be different?
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How to save a dictionary to a file?
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Python has the pickle module just for this kind of thing.
These functions are all that you need for saving and loading almost any object:
def save_obj(obj, name ):
with open('obj/'+ name + '.pkl', 'wb') as f:
pi...
python date of the previous month
I am trying to get the date of the previous month with python.
Here is what i've tried:
12 Answers
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Is there a simple, elegant way to define singletons? [duplicate]
There seem to be many ways to define singletons in Python. Is there a consensus opinion on Stack Overflow?
21 Answers
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Reading/parsing Excel (xls) files with Python
What is the best way to read Excel (XLS) files with Python (not CSV files).
12 Answers
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How to source virtualenv activate in a Bash script
How do you create a Bash script to activate a Python virtualenv?
9 Answers
9
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How do lexical closures work?
...had with lexical closures in Javascript code, I came along this problem in Python:
9 Answers
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Append values to a set in Python
...> my_set |= {2}
>>> my_set
{1, 2}
Note: In versions prior to Python 2.7, use set([...]) instead of {...}.
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How do I remove leading whitespace in Python?
...world with 2 spaces and a tab!'
Related question:
Trimming a string in Python
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How to sort objects by multiple keys in Python?
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In case you like your code terse.
Later 2016-01-17
This works with python3 (which eliminated the cmp argument to sort):
from operator import itemgetter as i
from functools import cmp_to_key
def cmp(x, y):
"""
Replacement for built-in function cmp that was removed in Python 3
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