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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_]*$'         #TO DO -- Complete the Code print("text#1: " + text_match("The quick brown fox jumps over the lazy dog.")) print("text#2: " + text_match("Python_Exercises_1")) Expected output: text1: No match found! text2: Found a match!

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_]*$'         #TO DO -- Complete the Code print("text#1: " + text_match("The quick brown fox jumps over the lazy dog.")) print("text#2: " + text_match("Python_Exercises_1")) Expected output: text1: No match found! text2: Found a match!

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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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_]*$'
        #TO DO -- Complete the Code
print("text#1: " + text_match("The quick brown fox jumps over the lazy dog."))
print("text#2: " + text_match("Python_Exercises_1"))

Expected output:

text1: No match found!
text2: Found a match!

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