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NeilGirdhar opened this issue Feb 13, 2023 · 2 comments · Fixed by #14885
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Crash when using imported class with partial #14687

NeilGirdhar opened this issue Feb 13, 2023 · 2 comments · Fixed by #14885
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crash topic-incremental

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@NeilGirdhar
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NeilGirdhar commented Feb 13, 2023 •
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This relies on tjax version 0.26 (tagged and released to PyPI).

from functools import partial

from tjax import custom_jvp  # Copying the definition into the file does not crash.


@partial(custom_jvp)
def f(x: int) -> None:
    pass

Produces:

a.py:6: error: INTERNAL ERROR -- Please try using mypy master on GitHub:
https://mypy.readthedocs.io/en/stable/common_issues.html#using-a-development-mypy-build
Please report a bug at https://github.com/python/mypy/issues
version: 1.0.0
Traceback (most recent call last):
  File "mypy/checkexpr.py", line 4821, in accept
  File "mypy/nodes.py", line 1891, in accept
  File "mypy/checkexpr.py", line 425, in visit_call_expr
  File "mypy/checkexpr.py", line 545, in visit_call_expr_inner
  File "mypy/checkexpr.py", line 1197, in check_call_expr_with_callee_type
  File "mypy/checkexpr.py", line 1280, in check_call
  File "mypy/checkexpr.py", line 1471, in check_callable_call
  File "mypy/checkexpr.py", line 2122, in check_argument_types
  File "mypy/checkexpr.py", line 2166, in check_arg
  File "mypy/subtypes.py", line 176, in is_subtype
  File "mypy/subtypes.py", line 335, in _is_subtype
  File "mypy/types.py", line 1860, in accept
  File "mypy/subtypes.py", line 686, in visit_callable_type
  File "mypy/subtypes.py", line 1423, in is_callable_compatible
  File "mypy/subtypes.py", line 1717, in unify_generic_callable
  File "mypy/solve.py", line 88, in solve_constraints
  File "mypy/subtypes.py", line 176, in is_subtype
  File "mypy/subtypes.py", line 335, in _is_subtype
  File "mypy/types.py", line 705, in accept
  File "mypy/subtypes.py", line 649, in visit_param_spec
  File "mypy/subtypes.py", line 388, in _is_subtype
  File "mypy/subtypes.py", line 176, in is_subtype
  File "mypy/subtypes.py", line 335, in _is_subtype
  File "mypy/types.py", line 1348, in accept
  File "mypy/subtypes.py", line 435, in visit_instance
AttributeError: attribute 'fallback_to_any' of 'TypeInfo' undefined
a.py:6: : note: use --pdb to drop into pdb
@NeilGirdhar NeilGirdhar added the bug mypy got something wrong label Feb 13, 2023
@hauntsaninja hauntsaninja added crash and removed bug mypy got something wrong labels Feb 13, 2023
@hauntsaninja
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Hm, I cannot repro this with mypy 1.0.0 and tjax 0.26. If you have a consistent repro in a clean environment, maybe share pip freeze?

@NeilGirdhar
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@hauntsaninja Apparently when I run it twice, then it crashes:

❯ mypy a.py
a.py:6: error: Argument 1 to "partial" has incompatible type "Type[custom_jvp[Any, Any, Any]]"; expected "Callable[..., custom_jvp[U, P, R_co]]"  [arg-type]
Found 1 error in 1 file (checked 1 source file)
❯ mypy a.py
a.py:6: error: INTERNAL ERROR -- Please try using mypy master on GitHub:
https://mypy.readthedocs.io/en/stable/common_issues.html#using-a-development-mypy-build
If this issue continues with mypy master, please report a bug at https://github.com/python/mypy/issues
version: 1.0.0
a.py:6: : note: please use --show-traceback to print a traceback when reporting a bug
❯ mypy a.py
a.py:6: error: INTERNAL ERROR -- Please try using mypy master on GitHub:
https://mypy.readthedocs.io/en/stable/common_issues.html#using-a-development-mypy-build
If this issue continues with mypy master, please report a bug at https://github.com/python/mypy/issues
version: 1.0.0
a.py:6: : note: please use --show-traceback to print a traceback when reporting a bug

So it may be cache related. Here's my pip freeze:

absl-py==1.4.0
anyio==3.6.2
appnope==0.1.3
argon2-cffi==21.3.0
argon2-cffi-bindings==21.2.0
arrow==1.2.3
astroid==2.14.1
asttokens==2.2.1
astunparse==1.6.3
attrs==22.2.0
backcall==0.2.0
beautifulsoup4==4.11.2
bleach==6.0.0
cachetools==5.3.0
certifi==2022.12.7
cffi==1.15.1
charset-normalizer==3.0.1
chex==0.1.6
click==8.1.3
cloudpickle==2.2.1
-e git+ssh://[email protected]/NeilGirdhar/cmm.git@4576d13a457df72c540a3096a004bca2a352acb6#egg=cmm
comm==0.1.2
contourpy==1.0.7
cycler==0.11.0
debugpy==1.6.6
decorator==5.1.1
defusedxml==0.7.1
dill==0.3.6
dm-haiku==0.0.9
dm-tree==0.1.8
efax==1.11.0
entrypoints==0.4
etils==1.0.0
exceptiongroup==1.1.0
executing==1.2.0
fastjsonschema==2.16.2
flake8==6.0.0
flatbuffers==23.1.21
fonttools==4.38.0
fqdn==1.5.1
gast==0.4.0
google-auth==2.16.0
google-auth-oauthlib==0.4.6
google-pasta==0.2.0
googleapis-common-protos==1.58.0
grpcio==1.51.1
h5py==3.8.0
idna==3.4
importlib-resources==5.10.2
iniconfig==2.0.0
ipykernel==6.21.1
ipython==8.9.0
ipython-genutils==0.2.0
ipywidgets==8.0.4
isoduration==20.11.0
isort==5.12.0
jax==0.4.2
jaxlib==0.4.2
jedi==0.18.2
Jinja2==3.1.2
jmp==0.0.4
jsonpointer==2.3
jsonschema==4.17.3
jupyter==1.0.0
jupyter-console==6.4.4
jupyter-events==0.6.3
jupyter_client==8.0.2
jupyter_core==5.2.0
jupyter_server==2.2.1
jupyter_server_terminals==0.4.4
jupyterlab-pygments==0.2.2
jupyterlab-widgets==3.0.5
keras==2.11.0
kiwisolver==1.4.4
lazy-object-proxy==1.9.0
libclang==15.0.6.1
Markdown==3.4.1
markdown-it-py==2.1.0
MarkupSafe==2.1.2
matplotlib==3.6.3
matplotlib-inline==0.1.6
mccabe==0.7.0
mdurl==0.1.2
mistune==2.0.4
more-itertools==9.0.0
mypy==1.0.0
mypy-extensions==1.0.0
nbclassic==0.5.1
nbclient==0.7.2
nbconvert==7.2.9
nbformat==5.7.3
nest-asyncio==1.5.6
networkx==3.0
nodeenv==1.7.0
notebook==6.5.2
notebook_shim==0.2.2
numpy==1.24.2
oauthlib==3.2.2
opt-einsum==3.3.0
optax==0.1.4
packaging==23.0
pandas==1.5.3
pandocfilters==1.5.0
parso==0.8.3
pexpect==4.8.0
pickleshare==0.7.5
Pillow==9.4.0
platformdirs==3.0.0
pluggy==1.0.0
progressbar2==4.2.0
prometheus-client==0.16.0
promise==2.3
prompt-toolkit==3.0.36
protobuf==3.19.6
psutil==5.9.4
ptyprocess==0.7.0
pure-eval==0.2.2
pyasn1==0.4.8
pyasn1-modules==0.2.8
pycodestyle==2.10.0
pycparser==2.21
pyflakes==3.0.1
Pygments==2.14.0
pylint==2.16.1
pylint-pytest==1.1.2
pyparsing==3.0.9
pyproject-flake8==6.0.0.post1
pyright==1.1.292
pyrsistent==0.19.3
pytest==7.2.1
python-dateutil==2.8.2
python-json-logger==2.0.4
python-utils==3.4.5
pytz==2022.7.1
PyYAML==6.0
pyzmq==25.0.0
qtconsole==5.4.0
QtPy==2.3.0
requests==2.28.2
requests-oauthlib==1.3.1
rfc3339-validator==0.1.4
rfc3986-validator==0.1.1
rich==13.3.1
rsa==4.9
scipy==1.10.0
seaborn==0.12.2
Send2Trash==1.8.0
six==1.16.0
sniffio==1.3.0
soupsieve==2.3.2.post1
stack-data==0.6.2
structlog==22.3.0
tabulate==0.9.0
tensorboard==2.11.2
tensorboard-data-server==0.6.1
tensorboard-plugin-wit==1.8.1
tensorflow==2.11.0
tensorflow-datasets==4.8.2
tensorflow-estimator==2.11.0
tensorflow-io-gcs-filesystem==0.30.0
tensorflow-metadata==1.12.0
tensorflow-probability==0.19.0
termcolor==2.2.0
terminado==0.17.1
tinycss2==1.2.1
tjax==0.26.0
toml==0.10.2
tomli==2.0.1
tomlkit==0.11.6
toolz==0.12.0
tornado==6.2
tqdm==4.64.1
traitlets==5.9.0
typer==0.7.0
typing_extensions==4.4.0
uri-template==1.2.0
urllib3==1.26.14
wcwidth==0.2.6
webcolors==1.12
webencodings==0.5.1
websocket-client==1.5.1
Werkzeug==2.2.2
widgetsnbextension==4.0.5
wrapt==1.14.1
zipp==3.12.1

@ilevkivskyi ilevkivskyi mentioned this issue Mar 12, 2023
Merged
JukkaL pushed a commit that referenced this issue Mar 12, 2023
@ilevkivskyi
Fix crash on ParamSpec in incremental mode (#14885)
4365dad 
Fixes #14687
Fixes #14353
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Fix crash on ParamSpec in incremental mode ilevkivskyi/mypy
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@NeilGirdhar @hauntsaninja @AlexWaygood