PyPro #74 Match three-of-a-kind characters from a string

Match three-of-a-kind characters from a string in Python

Match three-of-a-kind characters from a string in Python

Write a Regular Expression in Python to match three-of-a-kind characters from a string containing characters other than a newline e.g. 'abc123abc123abc'.

Match three-of-a-kind characters from a string

import re

sourceString = 'abc123abc123abc'

matchObject = re.search(r'.*?(.).*?\1.*?\1', sourceString)
print( matchObject.groups() )			# ('a',)

For clarity, try it out on Regex101. To learn more about Regular Expressions in Python, click here.

See also:

• Python 101
• Object Oriented Python
• Design Patterns in Python
• 50+ Handy Standard Library Modules
• 60+ Handy Third Library Modules
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