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Suppress/ print without b' prefix for bytes in Python 3
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edited Jun 19 '19 at 9:23
Smart Manoj
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How do I check the operating system in Python?
...2":
# linux
elif platform == "darwin":
# OS X
elif platform == "win32":
# Windows...
sys.platform has finer granularity than sys.name.
For the valid values, consult the documentation.
See also the answer to “What OS am I running on?”
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C-like structures in Python
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352
Use a named tuple, which was added to the collections module in the standard library in Python...
Getting the array length of a 2D array in Java
...tring[] args) {
int[][] foo = new int[][] {
new int[] { 1, 2, 3 },
new int[] { 1, 2, 3, 4},
};
System.out.println(foo.length); //2
System.out.println(foo[0].length); //3
System.out.println(foo[1].length); //4
}
Column lengths differ per row. If you're backing...
The order of keys in dictionaries
...es Python 2.7) or higher.
Also, note that OrderedDict({'a': 1, 'b':2, 'c':3}) won't work since the dict you create with {...} has already forgotten the order of the elements. Instead, you want to use OrderedDict([('a', 1), ('b', 2), ('c', 3)]).
As mentioned in the documentation, for versions lower...
Why would anyone use set instead of unordered_set?
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3
It's ordered using std::less by default; you can override this and supply your own comparison operator. cplusplus.com/reference/set/set
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Pairwise crossproduct in Python [duplicate]
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3 Answers
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Python - Count elements in list [duplicate]
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399
len()
>>> someList=[]
>>> print len(someList)
0
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Convert all strings in a list to int
...the map function (in Python 2.x):
results = map(int, results)
In Python 3, you will need to convert the result from map to a list:
results = list(map(int, results))
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How do I exit the results of 'git diff' in Git Bash on windows? [duplicate]
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