How to Install `great-expectations` in Python

v1.16.0 Data & Science Python <3.14,>=3.10 Apache-2.0

Always know what to expect from your data.

Install pip install great-expectations

What is great-expectations?

Always know what to expect from your data.

Always know what to expect from your data. (See for full description).

Documentation → PyPI page → Author: The Great Expectations Team

Quick Start

Minimal example to get started with great-expectations:

import great_expectations

print(great_expectations.__version__)

Installation

pip (standard)

pip install great-expectations

Virtual environment (recommended)

python -m venv venv
source venv/bin/activate   # Windows: venv\Scripts\activate
pip install great-expectations

pip3

pip3 install great-expectations

conda

conda install -c conda-forge great-expectations

Poetry

poetry add great-expectations

Dependencies

Installing great-expectations will also install these packages:

altair cryptography jinja2 jsonschema marshmallow mistune numpy numpy numpy packaging pandas pandas

Verify the Installation

After installing, confirm the package is available:

python -c "import great_expectations; print(great_expectations.__version__)"

If this prints a version number, installation succeeded. If you see a ModuleNotFoundError, see the errors section below.

Installation Errors

Common errors when installing great-expectations with pip.

ModuleNotFoundError: No module named 'great_expectations'

Cause: The package is not installed in the current Python environment.

Fix: Run pip install great-expectations. If using a virtual environment, ensure it is activated first.

ModuleNotFoundError: No module named 'great_expectations' (installed but still failing)

Cause: pip installed the package into a different Python than the one running your script.

Fix: Use python -m pip install great-expectations to install into the interpreter you are running.

ImportError: cannot import name 'X' from 'great_expectations'

Cause: The function or class does not exist in the installed version.

Fix: Check the version with pip show great-expectations and upgrade with pip install --upgrade great-expectations.

pip: command not found

Cause: pip is not in PATH or Python was not added to PATH during installation.

Fix: Try python -m pip install great-expectations. On macOS/Linux try pip3.

PermissionError: [Errno 13] Permission denied

Cause: No write access to the system Python package directory.

Fix: Use a virtual environment, or add --user: pip install --user great-expectations

SSL: CERTIFICATE_VERIFY_FAILED

Cause: pip cannot verify PyPI's SSL certificate — common behind corporate proxies.

Fix: Try: pip install --trusted-host pypi.org --trusted-host files.pythonhosted.org great-expectations

MemoryError when loading data

Cause: Dataset is too large to fit in RAM.

Fix: Read in chunks, filter columns on load, or consider Polars/Dask for out-of-core processing.

Recent Releases

Version	Released
`1.16.0` latest	2026-04-09
`1.15.2`	2026-04-01
`1.15.1`	2026-03-13
`1.15.0`	2026-03-11
`1.13.1`	2026-03-04

Full release history on PyPI →

Manage great-expectations

Upgrade to latest version

pip install --upgrade great-expectations

Install a specific version

pip install great-expectations==1.16.0

Uninstall

pip uninstall great-expectations

Check what is installed

pip show great-expectations

Last updated: 2026-04-11 • Data from PyPI

How to Install great-expectations in Python