>>> import importlib.metadata
>>> importlib.metadata.distribution("-")
Traceback (most recent call last):
File ".\Lib\importlib\metadata\__init__.py", line 458, in from_name
return next(iter(cls._prefer_valid(cls.discover(name=name))))
StopIteration
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<python-input-1>", line 1, in <module>
importlib.metadata.distribution("-")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
File ".\Lib\importlib\metadata\__init__.py", line 1032, in distribution
return Distribution.from_name(distribution_name)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File ".\Lib\importlib\metadata\__init__.py", line 460, in from_name
raise PackageNotFoundError(name)
importlib.metadata.PackageNotFoundError: No package metadata was found for -This message is somewhat incorrect and can be much shorter. PackageNotFoundError is the interesting exception, while StopIteration is just an implementation detail, so there's no need to include the latter.
>>> import importlib.metadata
>>> importlib.metadata.distribution("-")
Traceback (most recent call last):
File "<python-input-1>", line 1, in <module>
importlib.metadata.distribution("-")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
File ".\Lib\importlib\metadata\__init__.py", line 1032, in distribution
return Distribution.from_name(distribution_name)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File ".\Lib\importlib\metadata\__init__.py", line 460, in from_name
raise PackageNotFoundError(name) from None
importlib.metadata.PackageNotFoundError: No package metadata was found for -It contains everything necessary for this specific traceback.
Bug report
Bug description:
This message is somewhat incorrect and can be much shorter.
PackageNotFoundErroris the interesting exception, whileStopIterationis just an implementation detail, so there's no need to include the latter.Instead, I'd expect:
It contains everything necessary for this specific traceback.
CPython versions tested on:
CPython main branch
Operating systems tested on:
Windows
Linked PRs
importlib.metadata.Distribution.from_name#140142importlib.metadata.Distribution.from_name(GH-140142) #140182importlib.metadata.Distribution.from_name(GH-140142) #140183