gradio cc publish to twine broken on python 3.9

[duerrsimon]

Describe the bug

gradio cc publish fails on Python 3.9 with the following error:

 Uploading distributions to https://upload.pypi.org/legacy/
╭─────────────────────────────── Traceback (most recent call last) ────────────────────────────────╮
│ /home/duerr/miniconda3/envs/gradio_customcomponents/lib/python3.9/site-packages/gradio/cli/comma │
│ nds/components/publish.py:196 in _publish                                                        │
│                                                                                                  │
│   193 │   │   │   │   if (not max_version or max_version in p.name)                              │
│   194 │   │   │   ]                                                                              │
│   195 │   │   │   print(f"Uploading files: {','.join(twine_files)}")                             │
│ ❱ 196 │   │   │   twine_upload(twine_settings, twine_files)                                      │
│   197 │   │   except Exception:                                                                  │
│   198 │   │   │   console.print_exception()                                                      │
│   199 │   if upload_demo and not demo_dir:                                                       │
│                                                                                                  │
│ /home/duerr/miniconda3/envs/gradio_customcomponents/lib/python3.9/site-packages/twine/commands/u │
│ pload.py:123 in upload                                                                           │
│                                                                                                  │
│   120 │   repository_url = cast(str, upload_settings.repository_config["repository"])            │
│   121 │   print(f"Uploading distributions to {repository_url}")                                  │
│   122 │                                                                                          │
│ ❱ 123 │   packages_to_upload = [                                                                 │
│   124 │   │   _make_package(filename, signatures, upload_settings) for filename in uploads       │
│   125 │   ]                                                                                      │
│   126                                                                                            │
│                                                                                                  │
│ /home/duerr/miniconda3/envs/gradio_customcomponents/lib/python3.9/site-packages/twine/commands/u │
│ pload.py:124 in <listcomp>                                                                       │
│                                                                                                  │
│   121 │   print(f"Uploading distributions to {repository_url}")                                  │
│   122 │                                                                                          │
│   123 │   packages_to_upload = [                                                                 │
│ ❱ 124 │   │   _make_package(filename, signatures, upload_settings) for filename in uploads       │
│   125 │   ]                                                                                      │
│   126 │                                                                                          │
│   127 │   repository = upload_settings.create_repository()                                       │
│                                                                                                  │
│ /home/duerr/miniconda3/envs/gradio_customcomponents/lib/python3.9/site-packages/twine/commands/u │
│ pload.py:77 in _make_package                                                                     │
│                                                                                                  │
│    74 │   filename: str, signatures: Dict[str, str], upload_settings: settings.Settings          │
│    75 ) -> package_file.PackageFile:                                                             │
│    76 │   """Create and sign a package, based off of filename, signatures and settings."""       │
│ ❱  77 │   package = package_file.PackageFile.from_filename(filename, upload_settings.comment)    │
│    78 │                                                                                          │
│    79 │   signed_name = package.signed_basefilename                                              │
│    80 │   if signed_name in signatures:                                                          │
│                                                                                                  │
│ /home/duerr/miniconda3/envs/gradio_customcomponents/lib/python3.9/site-packages/twine/package.py │
│ :117 in from_filename                                                                            │
│                                                                                                  │
│   114 │   │   ]                                                                                  │
│   115 │   │   if missing_fields:                                                                 │
│   116 │   │   │   supported_metadata = list(pkginfo.distribution.HEADER_ATTRS)                   │
│ ❱ 117 │   │   │   raise exceptions.InvalidDistribution(                                          │
│   118 │   │   │   │   "Metadata is missing required fields: "                                    │
│   119 │   │   │   │   f"{', '.join(missing_fields)}.\n"                                          │
│   120 │   │   │   │   "Make sure the distribution includes the files where those fields "        │
╰──────────────────────────────────────────────────────────────────────────────────────────────────╯
InvalidDistribution: Metadata is missing required fields: Name, Version.
Make sure the distribution includes the files where those fields are specified, and is using a supported Metadata-Version: 1.0, 
1.1, 1.2, 2.0, 2.1, 2.2.

Have you searched existing issues? 🔎

• I have searched and found no existing issues

Reproduction

See above, the exact same package can be published after upgrading to python 3.10

Screenshot

No response

Logs

No response

System Info

python 3.9, gradio 4.21.0

Severity

I can work around it

[freddyaboulton]

Thanks will take a look! What version of twine are you using @duerrsimon ?

[duerrsimon]

It works with

twine version 5.0.0 (importlib-metadata: 7.0.2, keyring: 24.3.1, pkginfo:
1.10.0, requests: 2.31.0, requests-toolbelt: 1.0.0, urllib3: 2.2.1)

I believe the twine version before was 4.0.2. This is the only twine I could find in dist-info in my lib/python3.9/site-packages

[freddyaboulton]

This is a bug with twine: pypa/twine#1070. same thing happened last night during the gradio release.

twine does not set a required version of pkginfo, so when hatch updated, twine didn't know how to read the metadata.

I don't think there's much we can do beyond raising an error in gradio. Will look into that.