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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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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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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 to scale an Image in ImageView to keep the aspect ratio
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That's the same thing, just done in code rather than XML. setImageBitmap is the same as android:src="..." and setBackground... is android:background="..."
– Steve Haley
Mar 31 '10 at 10:55
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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
C...
How do I convert this list of dictionaries to a csv file?
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Note that a more pythonic way of opening (and closing) files is with open('people.csv', 'wb') as f: ...
– gozzilli
Nov 20 '13 at 14:53
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How to read a single character from the user?
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@Evan, that's because python is in line buffered mode by default
– John La Rooy
Oct 13 '09 at 11:09
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How do I sort a dictionary by value?
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Python 3.6+
>>> x = {1: 2, 3: 4, 4: 3, 2: 1, 0: 0}
>>> {k: v for k, v in sorted(x.items(), key=lambda item: item[1])}
{0: 0, 2: 1, 1: 2, 4: 3, 3: 4}
Older Python
It is not possible to sort a dictionary, on...