polars.Series.cat.is_local

Series.cat.is_local() → bool

Return whether or not the column is a local categorical.

Examples

Categoricals constructed without a string cache are considered local.

>>> s = pl.Series(["a", "b", "a"], dtype=pl.Categorical)
>>> s.cat.is_local()
True

Categoricals constructed with a string cache are considered global.

>>> with pl.StringCache():
...     s = pl.Series(["a", "b", "a"], dtype=pl.Categorical)
...
>>> s.cat.is_local()
False