Question

Example:

import re
rx = re.compile("{0-9}")
Var1 =bla bla bla 54467
Var2= rx.findall(Var1)
number = ''.join(Var2)

My question is how to convert the number variable to int, i try to do so with int() but i get an error.
Or is there a way to create such a variable as int with another method?

Answer 1

Don’t use regular expressions for this. filter() is uch easier and quicker:

>>> s = "bla bla bla 54467 bla"
>>> int(filter(str.isdigit, s))
54467

The above code will merge all numbers in the string into a single string. If you don’t want this, use

>>> s = "bla 1223 bla 54467 bla"
>>> map(int, filter(str.isdigit, s.split()))
[1223, 54467]

The same recipes adapted for Python 3.x are:

>>> s = "bla bla bla 54467 bla"
>>> int("".join(filter(str.isdigit, s)))
54467
>>> s = "bla 1223 bla 54467 bla"
>>> list(map(int, filter(str.isdigit, s.split())))
[1223, 54467]