A utility to fetch and download python packages
A utility to fetch and download python packages
NOTICE This project is still in its early stage and the API may change before 1.0 release.
This project exists as the last piece to complete the puzzle of a package manager. The other pieces are:
They provide all the low-level functionalities that are needed to resolve and install packages.
The core functionality is basically extracted from pip. However, pip is not designed to be used as a library and hence the API is not very stable.
Unearth serves as a stable replacement for pip's PackageFinder
API. It will follow the conventions of Semantic Versioning so that downstream projects can use it to develop their own package finding and downloading.
unearth requires Python >=3.7
$ python -m pip install --upgrade unearth
Get the best matching candidate for a requirement:
>>> from unearth import PackageFinder
>>> finder = PackageFinder(index_urls=["https://pypi.org/simple/"])
>>> result = finder.find_best_match("flask>=2")
>>> result.best_candidate
Package(name='flask', version='2.1.2', link=<Link https://files.pythonhosted.org/packages/ba/76/e9580e494eaf6f09710b0f3b9000c9c0363e44af5390be32bb0394165853/Flask-2.1.2-py3-none-any.whl#sha256=fad5b446feb0d6db6aec0c3184d16a8c1f6c3e464b511649c8918a9be100b4fe (from https://pypi.org/simple/flask)>)
Using the CLI:
$ unearth "flask>=2"
{
"name": "flask",
"version": "2.1.2",
"link": {
"url": "https://files.pythonhosted.org/packages/ba/76/e9580e494eaf6f09710b0f3b9000c9c0363e44af5390be32bb0394165853/Flask-2.1.2-py3-none-any.whl#sha256=fad5b446feb0d6db6aec0c3184d16a8c1f6c3e464b511649c8918a9be100b4fe",
"comes_from": "https://pypi.org/simple/flask",
"yank_reason": null,
"requires_python": ">=3.7"
}
}