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Can Python test the membership of multiple values in a list?
...ssion 'a','b' in ['b', 'a', 'foo', 'bar'] doesn't work as expected because Python interprets it as a tuple:
>>> 'a', 'b'
('a', 'b')
>>> 'a', 5 + 2
('a', 7)
>>> 'a', 'x' in 'xerxes'
('a', True)
Other Options
There are other ways to execute this test, but they won't work...
Why is Magento so slow? [closed]
...t 2011) is:
http://www.sessiondigital.com/assets/Uploads/Mag-Perf-WP-final.pdf
(Thanks due to Alan Storm on this one.)
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What does the caret operator (^) in Python do?
I ran across the caret operator in python today and trying it out, I got the following output:
5 Answers
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Should __init__() call the parent class's __init__()?
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In Python, calling the super-class' __init__ is optional. If you call it, it is then also optional whether to use the super identifier, or whether to explicitly name the super class:
object.__init__(self)
In case of object, c...
A Regex that will never be matched by anything
...r regarding timing, as I found the exact opposite measured with timeit and python3.
– nivk
Nov 4 '17 at 20:59
It's not...
How to calculate a logistic sigmoid function in Python?
...intended as a straight one-to-one translation of the given expression into Python code. It is not tested or known to be a numerically sound implementation. If you know you need a very robust implementation, I'm sure there are others where people have actually given this problem some thought.
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What is the difference between 'E', 'T', and '?' for Java generics?
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It looks like the link to the PDF is broken. I've found what appears to be a copy here, but I can't be 100% certain since I don't know what the original looked like.
– John
May 30 '17 at 16:54
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How to round to 2 decimals with Python?
... Not sure why, but '{:0.2f}'.format(0.5357706) gives me '0.54' (python 3.6)
– Noam Peled
Apr 2 '18 at 2:00
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Index all *except* one item in python
...; l[:2] + l[3:]
[1, 2, 4, 5, 6, 7, 8, 9]
>>>
See also
Explain Python's slice notation
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Check if a number is int or float
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For Python 2, there is also the direct double check: isinstance(x, (int, long)).
– Eric O Lebigot
Apr 28 '13 at 13:05
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