find digit group from text using re

regex-with-position.py

import re

"""
find digit group from text
"""

def print_match(m):
    print('\t',{
        'start':m.start(),
        'group': m.group(),
        'span': m.span(),
    })

include_digit_text = 'sr_pg_1_11a3222'
print(f'find digit from "{include_digit_text}"')
for m in re.finditer(r'[\d]+', include_digit_text):
    print_match(m)

not_include_digit_text = 'sr_pg_'
print(f'find digit from "{not_include_digit_text}"')
for m in re.finditer(r'[\d]+', not_include_digit_text):
    print_match(m)

print('finished.')

Result

find digit from "sr_pg_1_11a3222"
	 {'start': 6, 'group': '1', 'span': (6, 7)}
	 {'start': 8, 'group': '11', 'span': (8, 10)}
	 {'start': 11, 'group': '3222', 'span': (11, 15)}
find digit from "sr_pg_"
finished.