opytional makes working with values that might be None safer and easier
Project description
opytional
opytional makes working with values that might be None safer and easier
Free software: MIT license
Documentation: https://opytional.readthedocs.io.
Inspired by C++’s std::optional
.
import opytional as opyt
# opyt.or_value
# provides a fallback value when value is None
opyt.or_value(None, 'fallback') # returns 'fallback'
opyt.or_value('value', 'fallback') # returns 'value'
# opyt.or_else
# provides a fallback callable when value is None
opyt.or_else(None, lambda: 'fallback') # returns 'fallback'
opyt.or_else('value', lambda: 'fallback') # returns 'value'
# opyt.apply_if
# applies an operator to value when value is not None
opyt.apply_if(None, lambda x: x + ' world') # returns None
opyt.apply_if('hello', lambda x: x + ' world') # returns 'hello world'
# opyt.apply_if_or_value
# applies an operator to value when value is not None
# with a fallback value for when value is None
opyt.apply_if_or_value(None, lambda x: x + ' world', 'fallback')
# returns 'fallback'
opyt.apply_if_or_value('hello', lambda x: x + ' world', 'fallback')
# returns 'hello world'
opyt.apply_if_or_value('hello', lambda x: None, 'fallback') # returns None
# opyt.apply_if_or_else
# applies an operator to value when value is not None
# with a fallback callable for when value is None
opyt.apply_if_or_else(None, lambda x: x + ' world', lambda: 'fallback')
# returns 'fallback'
opyt.apply_if_or_value('hello', lambda x: x + ' world', lambda: 'fallback')
# returns 'hello world'
opyt.apply_if_or_value('hello', lambda x: None, lambda: 'fallback')
# returns None
Credits
This package was created with Cookiecutter and the audreyr/cookiecutter-pypackage project template.
History
0.1.0 (2022-02-22)
First release on PyPI.
Project details
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
opytional-0.1.0.tar.gz
(11.1 kB
view hashes)
Built Distribution
Close
Hashes for opytional-0.1.0-py2.py3-none-any.whl
Algorithm | Hash digest | |
---|---|---|
SHA256 | 5504d36d3fa9b466d171336e92a11bde4dae52bf6878f26d539f8b688503f8e4 |
|
MD5 | b1017884b362884caa4b7d9d7b315786 |
|
BLAKE2b-256 | 28f1d282b5fdecd6b579b7fcc09ea2cb8a69837dd197acfe4a8d0806f5f3f931 |