Python Reference
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Quick Reference

The Python string isnumeric() method returns True if all the characters are numeric (0-9), or False if any are not.

Note

Exponents, like ² and ¾ are also considered to be numeric values.

“-1” and “3.14” are NOT considered numeric values, because all the characters in the string must be numeric.

txt = "12345"
x = txt.isnumeric()

print(x)

Note

Python string methods return new values, and DO NOT change the original string.

Output

True

Syntax

string.isnumeric()

Python Notes:

  • The most recent major version of Python is Python 3; however, Python 2 is still in use and quite popular, although not being updated with anything other than security updates
  • Python uses new lines to complete a command, as opposed to other programming languages which often use semicolons or parentheses
  • Python relies on indentation, using whitespace to define scope, such as the scope of loops, functions, and classes; other programming languages often use curly-brackets for this purpose
  • Python string methods return new values, and DO NOT change the original string
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