Installation is as simple as: ```py pip install pydantic ``` *pydantic* has no required dependencies except python 3.6 or 3.7 (and the dataclasses package in python 3.6). If you've got python 3.6 and `pip` installed, you're good to go. Pydantic is also available on [conda](https://www.anaconda.com) under the [conda-forge](https://conda-forge.org) channel: ```bash conda install pydantic -c conda-forge ``` *pydantic* can optionally be compiled with [cython](https://cython.org/) which should give a 30-50% performance improvement. `manylinux` binaries exist for python 3.6 and 3.7, so if you're installing from PyPI on linux, you should get a compiled version of *pydantic* with no extra work. If you're installing manually, install `cython` before installing *pydantic* and compilation should happen automatically. Compilation with cython [is not tested](https://github.com/samuelcolvin/pydantic/issues/555) on windows or mac. To test if *pydantic* is compiled run: ```py import pydantic print('compiled:', pydantic.compiled) ``` If you require email validation you can add [email-validator](https://github.com/JoshData/python-email-validator) as an optional dependency. Similarly, use of `Literal` relies on [typing-extensions](https://pypi.org/project/typing-extensions/): ```bash pip install pydantic[email] # or pip install pydantic[typing_extensions] # or just pip install pydantic[email,typing_extensions] ``` Of course, you can also install these requirements manually with `pip install email-validator` and/or `pip install typing_extensions`. And if you prefer to install *pydantic* directly from the repository: ```bash pip install git+git://github.com/samuelcolvin/pydantic@master#egg=pydantic # or with extras pip install git+git://github.com/samuelcolvin/pydantic@master#egg=pydantic[email,typing_extensions] ```