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# Python String | isnumeric method

schedule Aug 12, 2023
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Python
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Python's `str.isnumeric()` method returns a `boolean` indicating whether all characters in a string are numeric.

NOTE

A numeric character includes digit characters, and all characters having Unicode numeric value property (property value `Numeric_Type = Digit`, `Numeric_Type = Decimal` or `Numeric_Type = Numeric`). This includes subscripts, superscripts, fractions, roman numerals and currency numerators.

No parameters.

# Return value

A single `boolean` indicating whether or not all the characters in a string are numeric.

# Examples

## Numeric

To check whether all the characters in `'123'` are numeric:

``` a = '123'a.isnumeric() True ```

To check whether all characters in `'\u00B2123'` are numeric:

``` b = '\u00B2123'b.isnumeric()True True ```

Note that `'\u00B2123'` is Unicode for `'²123'` hence we return `True`.

To check whether all characters in `'\u00BD'` are numeric:

``` c = '\u00BD'c.isnumeric()True True ```

Note that `'\u00BD'` is Unicode for `'½'` hence we return `True`.

## Non-numeric

To check whether all characters in `'123A'` are numeric:

``` d = '123A'd.isnumeric()False False ```

As `'A'` is not a numeric character `False` is returned.

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