InvalidDistribution: Invalid distribution metadata: unrecognized or malformed field 'license-file'

[jeiglsperger]

Problem description

I wanted to upload my updated project ForeTiS. I linked the GitHub repository for insights in my files. After rebuilding the package with python3 -m build and uploading the package with python3 -m twine upload dist/*, I receive the following output/error:

Uploading distributions to https://upload.pypi.org/legacy/
ERROR    InvalidDistribution: Invalid distribution metadata: unrecognized or malformed field 'license-file' 

I do not understand this error message and why the uploading does not work. I reset all changes I did and still the problem exists, even though the uploading works some time ago with the identical content of the files. Therefore I assume it's a version issue of some packages, but I do not know which. Here is the output of executing pip3 list --local:

absl-py                      2.1.0
alembic                      1.14.1
anyio                        4.6.2.post1
appnope                      0.1.4
argon2-cffi                  23.1.0
argon2-cffi-bindings         21.2.0
arrow                        1.3.0
asttokens                    2.4.1
astunparse                   1.6.3
async-lru                    2.0.4
attrs                        24.2.0
babel                        2.16.0
backports.tarfile            1.2.0
bayesian-torch               0.5.0
beautifulsoup4               4.12.3
bleach                       6.1.0
blitz-bayesian-pytorch       0.2.8
blosc2                       3.0.0
build                        1.2.2.post1
certifi                      2024.8.30
cffi                         1.17.1
changefinder                 0.3
charset-normalizer           3.4.0
check-shapes                 1.1.1
cloudpickle                  3.1.1
colorlog                     6.9.0
comm                         0.2.2
contourpy                    1.3.1
cycler                       0.12.1
Cython                       3.0.11
debugpy                      1.8.7
decorator                    5.1.1
defusedxml                   0.7.1
Deprecated                   1.2.15
dm-tree                      0.1.8
docutils                     0.21.2
dropstackframe               0.1.1
executing                    2.1.0
fastjsonschema               2.20.0
filelock                     3.17.0
flatbuffers                  25.1.21
fonttools                    4.55.4
ForeTiS                      0.0.2
fqdn                         1.5.1
fsspec                       2024.12.0
gast                         0.6.0
GDAL                         3.10.0
google-pasta                 0.2.0
gpflow                       2.9.2
grpcio                       1.69.0
h11                          0.14.0
h5py                         3.12.1
httpcore                     1.0.6
httpx                        0.27.2
id                           1.5.0
idna                         3.10
importlib_metadata           8.6.1
ipykernel                    6.29.5
ipython                      8.28.0
isoduration                  20.11.0
jaraco.classes               3.4.0
jaraco.context               6.0.1
jaraco.functools             4.1.0
jedi                         0.19.1
Jinja2                       3.1.4
joblib                       1.4.2
json5                        0.9.25
jsonpointer                  3.0.0
jsonschema                   4.23.0
jsonschema-specifications    2024.10.1
jupyter_client               8.6.3
jupyter_core                 5.7.2
jupyter-events               0.10.0
jupyter-lsp                  2.2.5
jupyter_server               2.14.2
jupyter_server_terminals     0.5.3
jupyterlab                   4.2.5
jupyterlab_pygments          0.3.0
jupyterlab_server            2.27.3
keras                        3.8.0
keyring                      25.6.0
kiwisolver                   1.4.8
lark                         1.2.2
libclang                     18.1.1
Mako                         1.3.8
Markdown                     3.7
markdown-it-py               3.0.0
MarkupSafe                   3.0.2
matplotlib                   3.10.0
matplotlib-inline            0.1.7
mdurl                        0.1.2
mistune                      3.0.2
ml-dtypes                    0.3.2
more-itertools               10.6.0
mpmath                       1.3.0
msgpack                      1.1.0
multipledispatch             1.0.0
namex                        0.0.8
nbclient                     0.10.0
nbconvert                    7.16.4
nbformat                     5.10.4
ndindex                      1.9.2
nest-asyncio                 1.6.0
networkx                     3.4.2
nh3                          0.2.20
nose                         1.3.7
notebook_shim                0.2.4
numexpr                      2.10.2
numpy                        1.26.4
opt_einsum                   3.4.0
optree                       0.14.0
optuna                       4.2.0
overrides                    7.7.0
packaging                    24.1
pandas                       2.2.3
pandocfilters                1.5.1
parso                        0.8.4
patsy                        1.0.1
pexpect                      4.9.0
pillow                       11.1.0
pip                          24.0
pip-licenses                 5.0.0
pkginfo                      1.10.0
platformdirs                 4.3.6
pmdarima                     2.0.4
prettytable                  3.12.0
prometheus_client            0.21.0
prompt_toolkit               3.0.48
protobuf                     4.25.5
psutil                       6.1.0
ptyprocess                   0.7.0
pure_eval                    0.2.3
py-cpuinfo                   9.0.0
pycparser                    2.22
Pygments                     2.18.0
pyparsing                    3.2.1
pyproject_hooks              1.2.0
python-dateutil              2.9.0.post0
python-json-logger           2.0.7
pytz                         2024.2
PyYAML                       6.0.2
pyzmq                        26.2.0
readme_renderer              44.0
referencing                  0.35.1
requests                     2.32.3
requests-toolbelt            1.0.0
rfc3339-validator            0.1.4
rfc3986                      2.0.0
rfc3986-validator            0.1.1
rich                         13.9.4
rpds-py                      0.20.0
scikit-learn                 1.6.1
scipy                        1.15.1
Send2Trash                   1.8.3
setuptools                   65.5.0
six                          1.16.0
sniffio                      1.3.1
soupsieve                    2.6
SQLAlchemy                   1.4.46
stack-data                   0.6.3
statsmodels                  0.14.4
sympy                        1.13.1
tables                       3.10.2
tabulate                     0.9.0
tensorboard                  2.16.2
tensorboard-data-server      0.7.2
tensorflow                   2.16.2
tensorflow-io-gcs-filesystem 0.37.1
tensorflow-macos             2.16.2
tensorflow-probability       0.25.0
termcolor                    2.5.0
terminado                    0.18.1
tf_keras                     2.16.0
threadpoolctl                3.5.0
tinycss2                     1.3.0
tomli                        2.2.1
torch                        2.5.1
torchvision                  0.20.1
tornado                      6.4.1
tqdm                         4.67.1
traitlets                    5.14.3
twine                        6.1.0
types-python-dateutil        2.9.0.20241003
typing_extensions            4.12.2
tzdata                       2025.1
uri-template                 1.3.0
urllib3                      2.2.3
wcwidth                      0.2.13
webcolors                    24.8.0
webencodings                 0.5.1
websocket-client             1.8.0
Werkzeug                     3.1.3
wheel                        0.45.1
wrapt                        1.17.2
xgboost                      2.1.3
zipp                         3.21.0

[merwok]

This is pypa/twine#1216

[woodruffw]

Yep; closing in favor of tracking there.