wcwidth-1.12.1 has been yanked.
Fast implementations of wcwidth and wcswidth.
See https://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c for further information. This package is based on codegen from https://github.com/golang/text/ and the python implementation at https://github.com/jquast/wcwidth.
The current version contains tables updated for Unicode 12.1.