Typing-validation is a small library to perform runtime validation of Python objects using PEP 484 type hints.
This is a temporary fork of the original project to be used until the original project incorporates a bug fix to work with newer versions of the ‘typing_extensions’ dependency.
Bug: https://github.com/hashberg-io/typing-validation/issues/1
Install
You can install the latest release from PyPI as follows:
pip install --upgrade typing-validationUsage
The core functionality of this library is provided by the validate function:
>>> from typing_validation import validate
The validate function is invoked with a value and a type as its arguments and it returns nothing when the given value is valid for the given type:
>>> validate(12, int) # nothing is returned => 12 is a valid int
If the value is invalid for the given type, the validate function raises a TypeError:
>>> validate(12, str) TypeError: For type <class 'str'>, invalid value: 12
For nested types (e.g. parametric collection/mapping types), the full chain of validation failures is shown by the type error:
>>> validate([0, 1, "hi"], list[int]) TypeError: For type list[int], invalid value: [0, 1, 'hi'] For type <class 'int'>, invalid value: 'hi'
API
For the full API documentation, see https://typing-validation.readthedocs.io/
Contributing
Please see CONTRIBUTING.md.
License
1 maintainer
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