Invalid distribution metadata; `UNKNOWN` package name

See original GitHub issue

Hey guys, i have a problem when executing twine check dist/*. Since I am completely new to publishing packages I cannot fix this error. But one by one:

Your operating system: Mac OS
Version of python you are running:

python 3.7.6

How did you install twine? Did you use your operating system’s package manager or pip or something else?

pip install twine

Version of twine you have installed (include complete output of):

twine version 3.7.1 (importlib_metadata: 4.10.0, pkginfo: 1.8.2, requests:
2.26.0, requests-toolbelt: 0.9.1, tqdm: 4.42.1)

Which package repository are you targeting? pypi

The Issue

Please describe the issue that you are experiencing. After building the package with python3 -m build . a MANIFEST, ipypetrinet-1.0.0.tar.gz and UNKNOWN-0.0.0-py2.py3-none-any.whl file is successfully created. After that i tried twine check dist/* which throws the following error:

Checking dist/UNKNOWN-0.0.0-py2.py3-none-any.whl: InvalidDistribution: Invalid distribution metadata. 
This version of twine supports Metadata-Version 1.0, 1.1, 1.2, 2.0, 2.1, and 2.2

But when I unzip UNKNOWN-0.0.0-py2.py3-none-any.whl and look into the files, the only file containing the keyword Metadata-Version has an appropriate Metadata-Version of 2.1. To visualize this METADATA-file I will paste the first few lines below:

Metadata-Version: 2.1
Name: UNKNOWN
Version: 0.0.0
Summary: UNKNOWN
Home-page: UNKNOWN
License: UNKNOWN
Platform: UNKNOWN
Description-Content-Type: text/markdown
License-File: LICENSE.txt

Does anyone know how to deal with this? Any help is appreciated! Thanks in advance.

Issue Analytics

State:
Created 2 years ago
Reactions:1
Comments:12 (7 by maintainers)

Top GitHub Comments

1reaction

bhrutledgecommented, Jan 6, 2022

Alternatively, if there’s a conflict between the JS and the Python use of dist/, then you can specify a different directory for Python:

$ python3 -m build -o py_dist

$ twine upload py_dist/*

In that case, you’d want to add py_dist to your .gitignore.

0reactions

LordHeImchencommented, Jan 6, 2022

Well I am satisfied and publishing worked, so that’s great. And thanks, I will definitely try one of these options above if i update it in a while!

All that said, I do think the InvalidDistribution error could be more helpful. I’ll leave this open for now, with the hope that I can look into that soon.

However, I’ll leave the issue open for @bhrutledge in order to have a look at the error message. So feel free to close this issue whenever you like.

Top Results From Across the Web

Invalid distribution metadata; `UNKNOWN` package name

Hey guys, i have a problem when executing twine check dist/* . Since I am completely new to publishing packages I cannot fix...

Unknown distribution format: '' when uploading to PyPI via Twine

InvalidDistribution ( "Unknown distribution format: '%s'" % os.path.basename(filename) ). The basename for a directory is '' , hence the ...

Fail installation on conflicting package metadata #7179 - GitHub

Currently pip outputs a warning if package metadata does not align with the package name indicated in a direct URL or #egg= fragment....

Safely using setup.cfg for metadata | by David Shawley

It lets you explicitly specify the packages that are required to exist before the setuptools.setup function is run. The examples in this section ......

Defining metadata (meta.yaml) - Conda

Specifies package information. Package name . The lower case name of the package. It may contain "-", but no spaces.