I have the string
var = '7 msecs'
#var = int(var)
#var = float(var)
And I want to convert that to an integer (7), or float (7.0). This conversion works in javascript, as it seems to take the first value before the following, non-numerical values.
How can I do this in Python?
I want a good way to do this, without having to do
var = int(var.split(' ')[0])
It should also work for:
'10mm' or '10.55€'
Considered duplicate (Python: Extract numbers from a string)
This question is different, as I'm trying to replicate the ability of parseInt/parseFloat in javascript which only returns the numbers at the beginning of a string. This other question is looking for all numbers in a string.
#What I want:
'123mm' -> 123
'123mm1' -> 123
If you have white space, use split:
>>> s = "123 msecs2"
>>> int(s.split()[0])
123
If you want to take the numbers from the start of a string only without white space (or using regex), try this:
>>> s = "123msecs2"
>>> int("".join(list(next(iter(())) if not x.isdigit() else x for x in s)))
123
Note, it takes inspiration from the discussion here about breaking out of list comprehensions.