asof 0.1.2

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asof.py

Get latest version of a Python package (PyPI, conda) as of a certain date.

Usage

What versions of Numba were available on October 15, 2025?

$ asof 2025-10-15 numba
Query: numba (PyPI name)
Conda name: numba · PyPI name: numba
numba v0.63.0b1 published Mon 10/06/25 10:22:54 to https://pypi.org
numba v0.62.1 published Mon 09/29/25 10:46:31 to https://pypi.org
numba v0.62.1 published Mon 09/29/25 11:59:57 to conda-forge

By default, matches are based on the PyPI name. You can search by the conda package name instead:

$ asof 2019-10-10 web.py --query-type=conda
Query: web.py (conda name)
Conda name: web.py · PyPI name: web-py
web-py v0.40 published Fri 09/27/19 07:44:13 to https://pypi.org
web.py v0.40 published Sun 09/29/19 15:30:21 to conda-forge

Or by import name:

$ asof 2019-10-10 web --query-type=import
Query: web (import name)
Conda name: web.py · PyPI name: web-py
web-py v0.40 published Fri 09/27/19 07:44:13 to https://pypi.org
web.py v0.40 published Sun 09/29/19 15:30:21 to conda-forge

There are colors in the terminal output, but I can't show them here :)

Motivation

I use this to pin dependencies for new projects to the latest versions available under a dependency cooldown rule.

Installation

Easy way:

pipx install asof

For development:

python -m venv ./venv
# Activate the venv, then:
python -m pip install --editable .[dev]