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Python's “in” set operator
I'm a little confused about the python in operator for sets.
5 Answers
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Convert to binary and keep leading zeros in Python
I'm trying to convert an integer to binary using the bin() function in Python. However, it always removes the leading zeros, which I actually need, such that the result is always 8-bit:
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Traverse a list in reverse order in Python
... This is slightly slower than using reversed, at least under Python 2.7 (tested).
– kgriffs
Jan 2 '14 at 16:49
14
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How can I check if an ip is in a network in Python?
... 192.168.0.1), how do I check if it's in a network (say 192.168.0.0/24) in Python?
27 Answers
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The order of keys in dictionaries
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You could use OrderedDict (requires 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'...
How to print a dictionary's key?
I would like to print a specific Python dictionary key:
20 Answers
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Negation in Python
...xist, but the ! (not) operator doesn't work. I'm not sure how to negate in Python... What's the correct way to do this?
4 A...
retrieve links from web page using python and BeautifulSoup [closed]
...etrieve the links of a webpage and copy the url address of the links using Python?
16 Answers
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python multithreading wait till all threads finished
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In Python3, since Python 3.2 there is a new approach to reach the same result, that I personally prefer to the traditional thread creation/start/join, package concurrent.futures: https://docs.python.org/3/library/concurrent.futu...
Code for Greatest Common Divisor in Python [closed]
...port gcd
>>> gcd(20,8)
4
Source code from the inspect module in Python 2.7:
>>> print inspect.getsource(gcd)
def gcd(a, b):
"""Calculate the Greatest Common Divisor of a and b.
Unless b==0, the result will have the same sign as b (so that when
b is divided by it, th...