mirror of
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Levi Naden
61c8ca2f30
* Re-enable nested model init calls while still allowing self This commit enables nested model `__init__` statements to be executed while still allowing `self` as an argument. Effectively reverses the changes from #632 while still enabling the feature it implemented. In theory, there will still be a collision if someone ever tried to use `pydantic_base_model/settings_init` as an arg, but I don't know how to engineer a case where a collision would *never* happen, I'm not sure there is one. This commit also added a test for both BaseModel` and `BaseSettings` for both the `self`-as-a-parameter and the nested `__init__` features since `BaseSettings` now has the same issue as `BaseModel` since it invoked an `__init__` with self. I have added a comment under the `__init__` for both `BaseModel` and `BaseSetting` since not having `self` as the first arg is such a rarity within Python that it will likely confuse future developers who encounter it. The actual name of the variable referencing the class itself can be up for debate. * Please Lint * Please Black * Update from comments
pydantic
========
|BuildStatus| |Coverage| |pypi| |CondaForge| |downloads| |versions| |license|
Data validation and settings management using Python type hinting.
Fast and extensible, *pydantic* plays nicely with your linters/IDE/brain.
Define how data should be in pure, canonical Python 3.6+; validate it with *pydantic*.
Help
----
See `documentation`_ for more details.
Installation
------------
Install using ``pip install -U pydantic`` or ``conda install pydantic -c conda-forge``.
For more installation options to make *pydantic* even faster, see `Install`_ section in the documentation.
A Simple Example
----------------
.. code-block:: python
from datetime import datetime
from typing import List
from pydantic import BaseModel
class User(BaseModel):
id: int
name = 'John Doe'
signup_ts: datetime = None
friends: List[int] = []
external_data = {'id': '123', 'signup_ts': '2017-06-01 12:22', 'friends': [1, '2', b'3']}
user = User(**external_data)
print(user)
# > User id=123 name='John Doe' signup_ts=datetime.datetime(2017, 6, 1, 12, 22) friends=[1, 2, 3]
print(user.id)
# > 123
Contributing
------------
For guidance on setting up a development environment and how to make a
contribution to *pydantic*, see the `Contributing to Pydantic`_.
.. |BuildStatus| image:: https://travis-ci.org/samuelcolvin/pydantic.svg?branch=master
:target: https://travis-ci.org/samuelcolvin/pydantic
.. |Coverage| image:: https://codecov.io/gh/samuelcolvin/pydantic/branch/master/graph/badge.svg
:target: https://codecov.io/gh/samuelcolvin/pydantic
.. |pypi| image:: https://img.shields.io/pypi/v/pydantic.svg
:target: https://pypi.python.org/pypi/pydantic
.. |CondaForge| image:: https://img.shields.io/conda/v/conda-forge/pydantic.svg
:target: https://anaconda.org/conda-forge/pydantic
.. |downloads| image:: https://img.shields.io/pypi/dm/pydantic.svg
:target: https://pypistats.org/packages/pydantic
.. |versions| image:: https://img.shields.io/pypi/pyversions/pydantic.svg
:target: https://github.com/samuelcolvin/pydantic
.. |license| image:: https://img.shields.io/github/license/samuelcolvin/pydantic.svg
:target: https://github.com/samuelcolvin/pydantic/blob/master/LICENSE
.. _documentation: https://pydantic-docs.helpmanual.io/
.. _Install: https://pydantic-docs.helpmanual.io/#install
.. _Contributing to Pydantic: https://pydantic-docs.helpmanual.io/#contributing-to-pydantic