Installation is as simple as:

pip install pydantic

pydantic has no required dependencies except python 3.6, 3.7, 3.8, or 3.9, typing-extensions, and the dataclasses backport package for python 3.6. If you've got python 3.6+ and pip installed, you're good to go.

Pydantic is also available on conda under the conda-forge channel:

conda install pydantic -c conda-forge

pydantic can optionally be compiled with cython which should give a 30-50% performance improvement.

Binaries are available from PyPI for Linux, MacOS and 64bit Windows. If you're installing manually, install cython before installing pydantic and compilation should happen automatically.

To test if pydantic is compiled run:

import pydantic
print('compiled:', pydantic.compiled)

pydantic has three optional dependencies:

To install these along with pydantic:

pip install pydantic[email]
# or
pip install pydantic[dotenv]
# or just
pip install pydantic[email,dotenv]

Of course, you can also install these requirements manually with pip install email-validator and/or pip install.

And if you prefer to install pydantic directly from the repository:

pip install git+git://
# or with extras
pip install git+git://[email,dotenv]