Python Practice › Loop Programs › Program 58

Does a string contain a digit?

EasyLoop Programs · 58 of 90

Write a Python program to check whether a string contains a digit.

Input

"Python123", "Python"

Output

Python123 True
Python False

Approach

Loop until a digit is found; use for ... else for the “not found” case.

Solution

Python

for text in ["Python123", "Python"]:    for ch in text:        if ch.isdigit():            print(text, True)            break    else:        print(text, False)

Output

Python123 True
Python False

Line by line

Line 5

break stops at the first digit.

Lines 6-7

The else runs only when the loop ended without finding one.

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Loops: for & while lesson →

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