ak.str.is_alpha#

ak.str.is_alpha(array, *, highlevel=True, behavior=None, attrs=None)#

Parameters:

array – Array-like data (anything ak.to_layout recognizes).
highlevel (bool) – If True, return an ak.Array; otherwise, return a low-level ak.contents.Content subclass.
behavior (None or dict) – Custom ak.behavior for the output array, if high-level.
attrs (None or dict) – Custom attributes for the output array, if high-level.

Replaces any string-valued data with True if the string is non-empty and consists only of alphabetic Unicode characters, False otherwise.

Replaces any bytestring-valued data with True if the string is non-empty and consists only of alphabetic ASCII characters, False otherwise.

Note: this function does not raise an error if the array does not contain any string or bytestring data.

Requires the pyarrow library and calls pyarrow.compute.utf8_is_alpha or pyarrow.compute.ascii_is_alpha on strings and bytestrings, respectively.