CODEWITHSUNDEEP
pythonregexstring
MarcusBrodie
MarcusBrodie

Reputation: 105

Python extract numbers from string of alphanumeric characters

How do I print the numbers in a string in Python? In the example below, I am able to print the 6. How do I print the 6 and 5 together? Giving me 65.

man = 'The man is 65 or older'
print(man[11])

Upvotes: 0

Views: 1989

Answers (2)

cs95
cs95

Reputation: 402483

I can think of two ways that don't involve hardcoding your index.

str.split with str.isdigit

numbers = [x for x in string.split() if x.isdigit()]
print(numbers)
['65']

re.findall

import re

numbers = re.findall(r'\b\d+\b', string)
print(numbers)
['65']

Regex Details

\b      # word boundary
\d+     # match 1 or more digits
\b      # word boundary

Note that the \b word boundary should be used if you want to return only those numbers that are not part of a bigger word (for example, 3D will not be counted here).

Upvotes: 6

Ho0ony
Ho0ony

Reputation: 158

How about this short code?

man = 'The man is 65 or older'
numbers = list(filter(str.isdigit, man.split(' ')))
print(numbers[0])

Upvotes: 2

Related Questions