Python: Match a string that contains only upper and lowercase letters, numbers, and underscores
Python Regular Expression: Exercise-14 with Solution
Write a Python program to match a string that contains only upper and lowercase letters, numbers, and underscores.
import re def text_match(text): patterns = '^[a-zA-Z0-9_]*$' if re.search(patterns, text): return 'Found a match!' else: return('Not matched!') print(text_match("The quick brown fox jumps over the lazy dog.")) print(text_match("Python_Exercises_1"))
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Not matched! Found a match!
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