polars.Series.str.count_match#

Series.str.count_match(pattern: str) → Series[source]#

Count all successive non-overlapping regex matches.

Parameters:

pattern: A valid regular expression pattern, compatible with the regex crate.

Returns:

Series: Series of data type UInt32. Contains null values if the original value is null or if the regex captures nothing.

Examples

>>> s = pl.Series("foo", ["123 bla 45 asd", "xyz 678 910t"])
>>> # count digits
>>> s.str.count_match(r"\d")
shape: (2,)
Series: 'foo' [u32]
[
    5
    6
]