unicodedata

This module provides east_asian_width(character), returning the Unicode East Asian width classification of one character.

Result	Meaning
`F`	Fullwidth
`H`	Halfwidth
`N`	Neutral
`Na`	Narrow
`W`	Wide
`A`	Ambiguous

from unicodedata import east_asian_width

assert east_asian_width('A') == 'Na'
assert east_asian_width('中') == 'W'

The argument must be a string containing exactly one Unicode character. A longer string, including a multi-character grapheme, raises TypeError.

A width classification is not a complete terminal-layout algorithm: combining characters, emoji sequences, and ambiguous-width characters need additional handling. This module does not implement Unicode normalization, names, or the rest of CPython's unicodedata API.