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email.message: Fix invalid TypeVar usage; add some default values #9620

Merged
merged 1 commit into from
Jan 30, 2023
Merged

email.message: Fix invalid TypeVar usage; add some default values #9620

merged 1 commit into from
Jan 30, 2023

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AlexWaygood
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Refs #9608. For all of the functions touched here, the _T TypeVar would go unsolved if no value was passed by the user for the failobj parameter. We have to use overloads here to ensure that _T will never silently be resolved as Any

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Diff from mypy_primer, showing the effect of this PR on open source code:

pip (https://github.com/pypa/pip)
+ src/pip/_internal/metadata/_json.py:67: error: Item "None" of "Optional[List[Any]]" has no attribute "__iter__" (not iterable)  [union-attr]
+ src/pip/_internal/metadata/_json.py:70: error: Argument 1 to "sanitise_header" has incompatible type "Optional[Any]"; expected "Union[Header, str]"  [arg-type]

aiohttp (https://github.com/aio-libs/aiohttp)
+ aiohttp/helpers.py:749: error: Value of type "Optional[List[Tuple[str, str]]]" is not indexable  [index]

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AlexWaygood commented Jan 30, 2023 •
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Links to the primer hits:

https://github.com/pypa/pip/blob/e3e7bc34eb486622ebbb6412afc98ee57fcbff4a/src/pip/_internal/metadata/_json.py#L67-L70

https://github.com/aio-libs/aiohttp/blob/4635161ee8e7ad321cca46e01ce5bfeb1ad8bf26/aiohttp/helpers.py#L748-L749

These are both true positives, in my opinion: these are both cases where _T was previously being silently resolved to Any by mypy, meaning that it didn't notice the typing errors in the user code.

@srittau srittau merged commit b5a26d1 into python:main Jan 30, 2023
@AlexWaygood AlexWaygood deleted the email-overloads branch January 30, 2023 16:56
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srittau commented Jan 30, 2023

This would a good case for type var defaults (python/typing#307) as well.

@hauntsaninja hauntsaninja mentioned this pull request Feb 3, 2023
Merged
@jaraco jaraco mentioned this pull request Mar 18, 2023
Merged
bmwiedemann pushed a commit to bmwiedemann/openSUSE that referenced this pull request Mar 21, 2023
@bmwiedemann
Update python-importlib-metadata to version 6.1.0 / rev 16 via SR 107…
9302bab 
…2924

https://build.opensuse.org/request/show/1072924
by user dirkmueller + dimstar_suse
- update to 6.1.0:
  * ``packages_distributions`` now honors packages and
    modules with Python modules that not ``.py`` sources (e.g.
    ``.pyc``, *   ``.so``).
  * #434: Expand protocol for ``PackageMetadata.get_all`` to
    match the upstream implementation of ``email.message.Message.get_all``
    in python/typeshed#9620.
kraj pushed a commit to YoeDistro/poky that referenced this pull request Apr 10, 2023
@wangmingyu84 @alexandrebelloni
python3-importlib-metadata: upgrade 6.0.0 -> 6.2.0
56d0763 
Changelog:
===========
- #384: PackageMetadata now stipulates an additional get method allowing for
  easy querying of metadata keys that may not be present.
- #428: packages_distributions now honors packages and modules with Python
  modules that not .py sources (e.g. .pyc, .so).
- #434: Expand protocol for PackageMetadata.get_all to match the upstream
  implementation of email.message.Message.get_all in python/typeshed#9620.

(From OE-Core rev: 8cb0c21f597e4486229a7b42e00d3a681622ad9d)

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
kraj pushed a commit to YoeDistro/poky that referenced this pull request Apr 11, 2023
@wangmingyu84 @alexandrebelloni
python3-importlib-metadata: upgrade 6.0.0 -> 6.2.0
183191a 
Changelog:
===========
- #384: PackageMetadata now stipulates an additional get method allowing for
  easy querying of metadata keys that may not be present.
- #428: packages_distributions now honors packages and modules with Python
  modules that not .py sources (e.g. .pyc, .so).
- #434: Expand protocol for PackageMetadata.get_all to match the upstream
  implementation of email.message.Message.get_all in python/typeshed#9620.

(From OE-Core rev: 1aac50ba9b58866a91fb64c0408c4b0425ad1f75)

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
kraj pushed a commit to YoeDistro/poky that referenced this pull request Apr 11, 2023
@wangmingyu84 @lucaceresoli
python3-importlib-metadata: upgrade 6.0.0 -> 6.2.0
d19aab8 
Changelog:
===========
- #384: PackageMetadata now stipulates an additional get method allowing for
  easy querying of metadata keys that may not be present.
- #428: packages_distributions now honors packages and modules with Python
  modules that not .py sources (e.g. .pyc, .so).
- #434: Expand protocol for PackageMetadata.get_all to match the upstream
  implementation of email.message.Message.get_all in python/typeshed#9620.

(From OE-Core rev: c718e376fa8453f1998416c3c22139711cd6ff56)

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
kraj pushed a commit to YoeDistro/poky that referenced this pull request Apr 11, 2023
@wangmingyu84 @lucaceresoli
python3-importlib-metadata: upgrade 6.0.0 -> 6.2.0
2cf8fb0 
Changelog:
===========
- #384: PackageMetadata now stipulates an additional get method allowing for
  easy querying of metadata keys that may not be present.
- #428: packages_distributions now honors packages and modules with Python
  modules that not .py sources (e.g. .pyc, .so).
- #434: Expand protocol for PackageMetadata.get_all to match the upstream
  implementation of email.message.Message.get_all in python/typeshed#9620.

(From OE-Core rev: c718e376fa8453f1998416c3c22139711cd6ff56)

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
kraj pushed a commit to YoeDistro/poky that referenced this pull request Apr 12, 2023
@wangmingyu84 @lucaceresoli
python3-importlib-metadata: upgrade 6.0.0 -> 6.2.0
f41c36c 
Changelog:
===========
- #384: PackageMetadata now stipulates an additional get method allowing for
  easy querying of metadata keys that may not be present.
- #428: packages_distributions now honors packages and modules with Python
  modules that not .py sources (e.g. .pyc, .so).
- #434: Expand protocol for PackageMetadata.get_all to match the upstream
  implementation of email.message.Message.get_all in python/typeshed#9620.

(From OE-Core rev: fde9a92e05c0b01304fa40dba743f9c7b32c628f)

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
kraj pushed a commit to YoeDistro/poky that referenced this pull request Apr 12, 2023
@wangmingyu84 @lucaceresoli
python3-importlib-metadata: upgrade 6.0.0 -> 6.2.0
4c347ed 
Changelog:
===========
- #384: PackageMetadata now stipulates an additional get method allowing for
  easy querying of metadata keys that may not be present.
- #428: packages_distributions now honors packages and modules with Python
  modules that not .py sources (e.g. .pyc, .so).
- #434: Expand protocol for PackageMetadata.get_all to match the upstream
  implementation of email.message.Message.get_all in python/typeshed#9620.

(From OE-Core rev: fde9a92e05c0b01304fa40dba743f9c7b32c628f)

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
rpurdie pushed a commit to yoctoproject/poky that referenced this pull request Apr 13, 2023
@wangmingyu84 @rpurdie
python3-importlib-metadata: upgrade 6.0.0 -> 6.2.0
46e219d 
Changelog:
===========
- #384: PackageMetadata now stipulates an additional get method allowing for
  easy querying of metadata keys that may not be present.
- #428: packages_distributions now honors packages and modules with Python
  modules that not .py sources (e.g. .pyc, .so).
- #434: Expand protocol for PackageMetadata.get_all to match the upstream
  implementation of email.message.Message.get_all in python/typeshed#9620.

(From OE-Core rev: e3991141939e5e2393cf36edd02ef3765cacd330)

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
halstead pushed a commit to openembedded/openembedded-core that referenced this pull request Apr 13, 2023
@wangmingyu84 @rpurdie
python3-importlib-metadata: upgrade 6.0.0 -> 6.2.0
e399114 
Changelog:
===========
- #384: PackageMetadata now stipulates an additional get method allowing for
  easy querying of metadata keys that may not be present.
- #428: packages_distributions now honors packages and modules with Python
  modules that not .py sources (e.g. .pyc, .so).
- #434: Expand protocol for PackageMetadata.get_all to match the upstream
  implementation of email.message.Message.get_all in python/typeshed#9620.

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
@jaraco jaraco mentioned this pull request Apr 16, 2023
Merged
hauntsaninja added a commit to hauntsaninja/pip that referenced this pull request Sep 23, 2023
@hauntsaninja
Upgrade mypy
19d88fb 
Mostly straightforward.

The new message.get_all type ignores out of fear it may return None are
minorly annoying. You can see some of the extra errors on the pip
codebase in the mypy_primer of the typeshed PR that made the change
python/typeshed#9620

The abstract errors are because FakeDistribution doesn't actually
implement any of the Protocol it claims to implement
hauntsaninja added a commit to hauntsaninja/pip that referenced this pull request Sep 23, 2023
@hauntsaninja
Upgrade mypy
11e10b1 
Mostly straightforward.

The new message.get_all type ignores out of fear it may return None are
minorly annoying. You can see some of the extra errors on the pip
codebase in the mypy_primer of the typeshed PR that made the change
python/typeshed#9620

The abstract errors are because FakeDistribution doesn't actually
implement any of the Protocol it claims to implement
@hauntsaninja hauntsaninja mentioned this pull request Sep 23, 2023
Closed
daregit pushed a commit to daregit/yocto-combined that referenced this pull request May 22, 2024
@wangmingyu84 @rpurdie
src/poky:python3-importlib-metadata: upgrade 6.0.0 -> 6.2.0
c6632d5 
Changelog:
===========
- #384: PackageMetadata now stipulates an additional get method allowing for
  easy querying of metadata keys that may not be present.
- #428: packages_distributions now honors packages and modules with Python
  modules that not .py sources (e.g. .pyc, .so).
- #434: Expand protocol for PackageMetadata.get_all to match the upstream
  implementation of email.message.Message.get_all in python/typeshed#9620.

(From OE-Core rev: e3991141939e5e2393cf36edd02ef3765cacd330)

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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@srittau srittau srittau approved these changes

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@AlexWaygood @srittau