openc3

Python support for OpenC3 COSMOS

This project allows accessing the COSMOS API from the python programming language. Additional functionality and support will be added over time.

Installation

For Users

pip install openc3

For Development

See README-DEV.md for complete development setup.

Install Development Tools

Install UV, Ruff, and Just using pipx (recommended for isolated environments):

# Install pipx if not already installed
pip install --user pipx
pipx ensurepath

# Install development tools
pipx install uv
pipx install ruff
pipx install just

Or using your system package manager:

macOS: brew install uv ruff just
Linux: See UV docs, Ruff docs, Just docs
Windows: See tool documentation links above

Quick Start

# Create virtual environment and install dependencies
cosmos/openc3/python % uv venv
cosmos/openc3/python % uv sync

# Run tests
cosmos/openc3/python % uv run pytest

# Run tests with coverage
cosmos/openc3/python % uv run coverage run -m pytest
cosmos/openc3/python % uv run coverage html

Release files for openc3 7.4.1

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for openc3 7.4.1
File	Size	Uploaded
openc3-7.4.1.tar.gz	411.9 kB	Sep 24, 2026	Details

Built distribution (wheel)

Table of built distributions (wheels) for openc3 7.4.1
File	Interpreter	ABI	Platform	Reset
openc3-7.4.1-py3-none-any.whl 565.5 kB Sep 24, 2026	Python 3	none	any	Details

Total release size: 977.4 kB

Release files / openc3-7.4.1.tar.gz

Download URL	openc3-7.4.1.tar.gz
Size	411.9 kB
Tags	Source
SHA-256 checksum How to use checksums	`303fbd98f46b91aa642478e768cea0b127e400993e867dec0dfce4a189dcd73d`
BLAKE2b-256 checksum How to use checksums	`10d57efd3a72c1996a931251fd976822f193d0fef44cd7f56006b85bfcd0f9d1`
Upload date	Sep 24, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	Yes
Uploaded via	`twine/7.0.0 CPython/3.13.14`

Provenance

Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.

Identity

Publishing platform: GitHub Actions
Publishing repository: github.com/OpenC3/cosmos
Publishing commit: github.com/OpenC3/cosmos/tree/2d4089e0687654512c2eb84722a5a4fa699dd5c3

Workflow

Publishing configuration: github.com/OpenC3/cosmos/blob/2d4089e0687654512c2eb84722a5a4fa699dd5c3/.github/workflows/release.yml
Publishing logs: github.com/OpenC3/cosmos/actions/runs/36008091817/attempts/1

Artifact

Subject: openc3-7.4.1.tar.gz
SHA-256 checksum: 303fbd98f46b91aa642478e768cea0b127e400993e867dec0dfce4a189dcd73d Verifying attestations

Release files / openc3-7.4.1-py3-none-any.whl

Download URL	openc3-7.4.1-py3-none-any.whl
Size	565.5 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`e9bc04b262cdaaeafb1f01baa1fe023f366b423834e158c78fd048c591ab6627`
BLAKE2b-256 checksum How to use checksums	`5f7cbfc57827cf24aadc0dc66c45225621da4bb00e91e878859cd13ee275481b`
Upload date	Sep 24, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	Yes
Uploaded via	`twine/7.0.0 CPython/3.13.14`

Provenance

Identity

Publishing platform: GitHub Actions
Publishing repository: github.com/OpenC3/cosmos
Publishing commit: github.com/OpenC3/cosmos/tree/2d4089e0687654512c2eb84722a5a4fa699dd5c3

Workflow

Publishing configuration: github.com/OpenC3/cosmos/blob/2d4089e0687654512c2eb84722a5a4fa699dd5c3/.github/workflows/release.yml
Publishing logs: github.com/OpenC3/cosmos/actions/runs/36008091817/attempts/1

Artifact

Subject: openc3-7.4.1-py3-none-any.whl
SHA-256 checksum: e9bc04b262cdaaeafb1f01baa1fe023f366b423834e158c78fd048c591ab6627 Verifying attestations