How to extract integers from a string separated by spaces in Python 2.7?

Question

I want to extract integers from a string in which integers are separated by blank spaces i.e \' \'. How could I do that ??

Input

I=\'1 15 163 132\'
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Answer 1

You could simply do like this,

>>> import re
>>> I='bar 1 15 foo 163 132 foo bar'
>>> [int(i) for i in I.split() if re.match(r'^\d+$', i)]
[1, 15, 163, 132]

Without regex:

>>> I='bar 1 15 foo 163 132 foo bar'
>>> [int(i) for i in I.split() if i.isdigit()]
[1, 15, 163, 132]

i.isdigit() returns true only for the strings which contain only digits.