Python bindings for wc(s)width

cwcwidth provides Python bindings for wcwidth and wcswidth functions defined in POSIX.1-2001 and POSIX.1-2008 based on Cython . These functions compute the printable length of a unicode character/string on a terminal. The module provides the same functions as wcwidth and its behavior is compatible.

On systems not conforming to POSIX.1-2001 and POSIX.1-2008, Markus Kuhn's implementation is used to provide the functionality.

Dependencies

Cython >= 0.28 (only for building)

Quick installation guide

cwcwidth can be installed via pip:

pip install cwcwidth

or by running:

python3 setup.py install

Usage

import cwcwidth
cwcwidth.wcwidth("a") # 1
cwcwidth.wcswidth("コ") # 2
cwcwidth.wcswidth("コンニチハ, セカイ!") # 19

Comparison with `wcwidth`

>>> import wcwidth, cwcwidth, timeit
>>> timeit.timeit(lambda: wcwidth.wcswidth("コンニチハ, セカイ!"))
19.14463168097427
>>> timeit.timeit(lambda: cwcwidth.wcswidth("コンニチハ, セカイ!"))
0.16294104099506512

License

The code is licensed under the MIT license.

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