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Statistics: combinations in Python
I need to compute combinatorials (nCr) in Python but cannot find the function to do that in math , numpy or stat libraries. Something like a function of the type:
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Modular multiplicative inverse function in Python
Does some standard Python module contain a function to compute modular multiplicative inverse of a number, i.e. a number y = invmod(x, p) such that x*y == 1 (mod p) ? Google doesn't seem to give any good hints on this.
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How to disable visual “dots” in Visual Studio Editor
...wered Apr 30 '10 at 11:42
John KällénJohn Källén
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Pairs from single list
...nd the need to process a list by pairs. I was wondering which would be the pythonic and efficient way to do it, and found this on Google:
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How does one unit test routes with Express?
...ered Nov 17 '15 at 8:30
Marcus RådellMarcus Rådell
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How can I validate a string to only allow alphanumeric characters in it?
...typically is A-Z, a-z and 0-9). This answer allows local characters like åäö.
Update 2018-01-29
The syntax above only works when you use a single method that has a single argument of the correct type (in this case char).
To use multiple conditions, you need to write like this:
if (yourText.Al...
Proxies with Python 'Requests' module
Just a short, simple one about the excellent Requests module for Python.
10 Answers
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How to update SQLAlchemy row entry?
...ttribute to an SQL expression, the latter performs an in-place addition in Python and again introduces the race.
– Ilja Everilä
Sep 28 '18 at 4:28
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What is an alternative to execfile in Python 3?
It seems they canceled in Python 3 all the easy way to quickly load a script by removing execfile()
12 Answers
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_csv.Error: field larger than field limit (131072)
... sys
import csv
csv.field_size_limit(sys.maxsize)
sys.maxsize works for Python 2.x and 3.x. sys.maxint would only work with Python 2.x (SO: what-is-sys-maxint-in-python-3)
Update
As Geoff pointed out, the code above might result in the following error: OverflowError: Python int too large to con...