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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:
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Python read-only property
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Generally, Python programs should be written with the assumption that all users are consenting adults, and thus are responsible for using things correctly themselves. However, in the rare instance where it just does not make sense for ...
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 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...
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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Python: finding an element in a list [duplicate]
What is a good way to find the index of an element in a list in Python?
Note that the list may not be sorted.
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Duplicate log output when using Python logging module
I am using python logger. The following is my code:
14 Answers
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