https://github.com/uriyyo/typed-undefined

🐒 smth like JS undefined but in Python
https://github.com/uriyyo/typed-undefined

python python-typing python-utilities typing

Last synced: 17 days ago
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🐒 smth like JS undefined but in Python

• Host: GitHub
• URL: https://github.com/uriyyo/typed-undefined
• Owner: uriyyo
• License: mit
• Created: 2021-02-11T13:19:15.000Z (almost 4 years ago)
• Default Branch: master
• Last Pushed: 2022-04-10T08:42:32.000Z (over 2 years ago)
• Last Synced: 2024-10-10T19:08:16.638Z (about 1 month ago)
• Topics: python, python-typing, python-utilities, typing
• Language: Python
• Homepage:
• Size: 85 KB
• Stars: 3
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Typed Undefined

When `None` is not valid default value you can always use `undefined`.

```python

from undefined import Undefined, undefined, resolve

def foo(bar: Undefined[int] = undefined) -> int:

    return resolve(undefined, 10)

foo(1)  # ok

foo(1.0)  # error

a: Undefined[int] = 1  # ok

b: Undefined[int] = 0.5  # error

```

## mypy integration

You should add `undefined_mypy` to list of mypy plugins:

```buildoutcfg

[mypy]

plugins = undefined.mypy

```