Solve "ValueError invalid literal for int() with base 10" - Python

Normally “ValueError: invalid literal for int() with base 10” error occurs when we try to convert an invalid object into an integer.

The cases are,

1. Passing a string containing anything that is not a number, like letters and special characters.
2. Passing a string-type object that looks like a float type.

Example

int_var = int("...")

The solution is to ensure that we do not pass any letters or special characters to int() function.

Solution 1

import re
myInput= "123a"
matched=re.search("[^\d]",myInput)
if matched==None:
    myInt=int(myInput)
    print("Output Integer is:")
    print(myInt)
else:
    print("Input Cannot be converted into Integer.")

Solution 2

myInput= "123a"
if myInput.isdigit():
    print("Output Integer is:")
    myInt=int(myInput)
    print(myInt)
else:
    print("Input cannot be converted into integer.")

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This article was published on June 7, 2022

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