How to Install py-cpuinfo in Python

v9.0.0 CLI & Utilities MIT

Get CPU info with pure Python

Install pip install py-cpuinfo

What is py-cpuinfo?

Get CPU info with pure Python

Py-cpuinfo gets CPU info with pure Python. Py-cpuinfo should work without any extra programs or libraries, beyond what your OS provides. It does not require any compilation(C/C++, assembly, et cetera) to use. It works with Python 3.

Quick Start

Minimal example to get started with py-cpuinfo:

import cpuinfo

print(cpuinfo.__version__)

Installation

pip (standard)

pip install py-cpuinfo

Virtual environment (recommended)

python -m venv venv
source venv/bin/activate   # Windows: venv\Scripts\activate
pip install py-cpuinfo

pip3

pip3 install py-cpuinfo

conda

conda install -c conda-forge py-cpuinfo

Poetry

poetry add py-cpuinfo

Verify the Installation

After installing, confirm the package is available:

python -c "import cpuinfo; print(cpuinfo.__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 py-cpuinfo with pip.

ModuleNotFoundError: No module named 'cpuinfo'

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

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

ModuleNotFoundError: No module named 'cpuinfo' (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 py-cpuinfo to install into the interpreter you are running.

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

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

Fix: Check the version with pip show py-cpuinfo and upgrade with pip install --upgrade py-cpuinfo.

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 py-cpuinfo. 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 py-cpuinfo

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 py-cpuinfo

Recent Releases

VersionReleased
9.0.0 latest 2022-10-25
8.0.0 2021-04-14
7.0.0 2020-07-05
6.0.0 2020-06-11
5.0.0 2019-03-20

Full release history on PyPI →

Manage py-cpuinfo

Upgrade to latest version

pip install --upgrade py-cpuinfo

Install a specific version

pip install py-cpuinfo==9.0.0

Uninstall

pip uninstall py-cpuinfo

Check what is installed

pip show py-cpuinfo

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