Add support for Self type #14041
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Add support for Self type #14041
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Looks great. One test that's been missed is ClassVar[Self] which (I think) will currently fail (see https://github.com/python/mypy/pull/13133/files#diff-f782aad4853edceb67a88efe43d2869579d075a77b8e8dd2add91e818a9fa164R4048-R4051) |
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Yeah, I wasn't sure about class Context:
BACKGROUND: ClassVar[Self]
...
Context.BACKGROUND = Context() |
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I know it's something pyright supports microsoft/pyright#2858 and it wasn't that hard to support in my fork |
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@Gobot1234 Hm, OK. But also looking at the original example in that issue I am not use we should allow Also I will need to disable @hauntsaninja Is there a way to get non-truncated output of |
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cdce8p
reviewed
Nov 9, 2022
JukkaL
reviewed
Nov 9, 2022
docs/source/generics.rst
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| .. note:: | ||
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| This feature is available on Python 3.11 or newer. On older Python versions | ||
| you can import backported ``Self`` from latest ``typing_extensions``. |
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I'd suggest replacing 'latest' with 'recent enough' since otherwise it go stale quickly.
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Also, it's misleading to start with "This feature is available on Python 3.11 or newer." Users will think they can't use Self before 3.11. I'd suggest saying:
Suggested change
| you can import backported ``Self`` from latest ``typing_extensions``. | |
| ``Self`` can be imported from ``typing`` on Python 3.11 or higher, and also from | |
| ``typing_extensions`` on version 4.0.0 or higher. |
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Yes, I will make it more clear (or maybe just commit what Jelle proposed)
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| z: P | ||
| reveal_type(S().next) # N: Revealed type is "__main__.S" | ||
| reveal_type(z.next) # N: Revealed type is "__main__.P" |
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Maybe also test a subprotocol of P and accessing inherited property?
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I added subprotocol test (didn't push yet). For inherited property there is testTypingSelfProperty in a different test file.
| x: Self | ||
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| class D(C[int]): | ||
| x: D |
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What if we now have a class like this:
class E(D): passThis should perhaps be an error (incompatible attribute), since the type of x is D in E, which could be considered incompatible with the definition in C. It looks like we don't have a similar check for methods, so it's okay to not generate an error.
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Yeah, this looks wrong, but also may be not super easy to implement. Let's postpone this for now.
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Worth adding an xfail test?
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TBH it is unlikely it will be fixed accidentally, instead I will open a follow up issue, maybe at some point we will have energy to tighten this.
test-data/unit/check-typeddict.test
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| T = TypeVar("T") | ||
| class TD(TypedDict, Generic[T]): | ||
| val: T | ||
| next: Optional[Self] |
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What happens if we inherit a typed dict from TD?
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TypedDicts can't be inherited in a "normal" sense of this word, since we can't change item types, we can only add new items, so I usually call it extending.
Currently I eagerly expand Self in TypedDicts (and in NamedTuples), so in this case next will be still Optional[TD] in extended TypedDict. PEP doesn't say anything about TypedDicts and NamedTuples, and they are not really classes, so I just implemented whatever looked more natural (and also simpler to implement).
But actually thinking a bit more about this, maybe it would be better to implement them more like for classes, so it will point to extended dict. I am not sure yet.
test-data/unit/fine-grained.test
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| [file m.py] | ||
| import lib | ||
| class D(lib.C): | ||
| def meth(self, other: int) -> D: ... |
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What about switching a method to use a self type in a fine-grained increment? All the call sites to the method (including subclasses) should be updated.
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What about switching a method to use a self type in a fine-grained increment?
This is what I am doing, see [file lib.py.2]. But anyway, I will use a method call to verify update (in a different module), instead of Liskov check.
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@JukkaL Thanks for comments! I addressed almost all of them. I am not sure what to do with the uses in TypedDicts (and also in NamedTuples). Btw PEP actually prohibits |
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This was referenced Nov 12, 2022
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OK, I have addressed all CR, and I am happy with
If there will be no more comments, I will merge this in next couple days. |
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Diff from mypy_primer, showing the effect of this PR on open source code: Tanjun (https://github.com/FasterSpeeding/Tanjun)
- tanjun/dependencies/data.py:87: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/dependencies/data.py:87: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/dependencies/data.py:93: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/dependencies/data.py:93: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:228: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:228: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:310: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:310: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:921: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:921: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:925: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:925: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:929: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:929: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:1350: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:1350: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:1692: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:1692: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:1789: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:1789: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2054: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2054: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2058: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2058: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2127: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2127: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2178: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2178: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2226: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2226: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2274: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2274: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2407: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2407: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2411: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2411: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2415: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2415: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2425: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2425: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2440: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2440: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2455: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2455: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2475: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2475: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2603: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2603: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2658: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2658: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2673: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2673: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2779: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2779: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2794: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2794: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2835: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2835: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2839: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2839: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2843: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2843: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2925: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2925: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2940: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2940: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:2961: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:2961: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:3001: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:3001: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:3016: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:3016: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:3150: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:3150: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:3167: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:3167: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:3182: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:3182: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:3226: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:3226: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:3241: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:3241: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:3292: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:3292: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:3307: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:3307: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:3358: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:3358: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:3375: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:3375: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:3424: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:3424: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:3428: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:3428: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4073: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4073: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4090: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4090: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4120: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4120: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4143: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4143: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4161: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4161: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4222: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4222: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4281: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4281: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4303: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4303: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4499: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4499: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4552: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4552: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4622: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4622: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4674: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4674: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4733: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4733: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4765: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4765: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4785: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4785: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/abc.py:4817: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/abc.py:4817: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/hooks.py:115: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/hooks.py:115: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/hooks.py:119: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/hooks.py:119: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/hooks.py:124: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/hooks.py:124: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/hooks.py:153: error: Returning Any from function declared to return Self? [no-any-return]
- tanjun/hooks.py:160: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/hooks.py:160: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/hooks.py:165: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/hooks.py:165: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/hooks.py:187: error: Returning Any from function declared to return Self? [no-any-return]
- tanjun/hooks.py:194: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/hooks.py:194: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/hooks.py:199: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/hooks.py:199: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/hooks.py:218: error: Returning Any from function declared to return Self? [no-any-return]
- tanjun/hooks.py:225: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/hooks.py:225: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/hooks.py:230: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/hooks.py:230: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/hooks.py:249: error: Returning Any from function declared to return Self? [no-any-return]
- tanjun/hooks.py:256: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/hooks.py:256: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/hooks.py:261: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/hooks.py:261: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/hooks.py:280: error: Returning Any from function declared to return Self? [no-any-return]
- tanjun/dependencies/locales.py:145: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/dependencies/locales.py:145: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/context/base.py:119: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/context/base.py:119: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/context/base.py:130: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/context/base.py:130: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:323: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:323: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:340: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:340: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:344: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:344: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:352: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:352: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:422: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:422: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:448: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:448: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:468: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:468: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:489: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:489: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:494: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:494: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:510: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:510: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:526: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:526: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:542: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:542: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:558: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:558: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:576: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:576: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:618: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:618: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:743: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:743: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:773: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:773: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:852: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:852: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:866: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:866: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:889: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:889: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:903: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:903: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:928: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:928: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:970: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:970: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:997: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:997: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:1013: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:1013: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:1037: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:1037: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:1085: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:1085: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:1133: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:1133: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:1155: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:1155: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:1349: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:1349: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/components.py:1368: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/components.py:1368: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/dependencies/reloaders.py:195: error: Self? has no attribute "add_client_callback" [attr-defined]
- tanjun/dependencies/reloaders.py:202: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/dependencies/reloaders.py:202: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/dependencies/reloaders.py:216: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/dependencies/reloaders.py:216: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/dependencies/reloaders.py:241: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/dependencies/reloaders.py:241: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/dependencies/reloaders.py:256: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/dependencies/reloaders.py:256: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/context/slash.py:400: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/context/slash.py:400: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/context/slash.py:421: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/context/slash.py:421: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/context/slash.py:1040: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/context/slash.py:1040: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/context/message.py:180: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/context/message.py:180: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/context/message.py:195: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/context/message.py:195: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/context/message.py:201: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/context/message.py:201: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/context/message.py:207: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/context/message.py:207: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/schedules.py:83: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/schedules.py:83: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/schedules.py:296: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/schedules.py:296: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/schedules.py:310: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/schedules.py:310: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/schedules.py:326: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/schedules.py:326: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/schedules.py:519: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/schedules.py:519: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/schedules.py:537: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/schedules.py:537: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/schedules.py:667: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/schedules.py:667: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/schedules.py:686: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/schedules.py:686: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/schedules.py:739: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/schedules.py:739: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/schedules.py:758: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/schedules.py:758: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/schedules.py:777: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/schedules.py:777: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/schedules.py:1053: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/schedules.py:1053: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/schedules.py:1147: error: Variable "typing_extensions.Self" is not valid as a type [valid-type]
- tanjun/schedules.py:1147: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#variables-vs-type-aliases
- tanjun/schedules.py:1165: erro
... (truncated 955 lines) ... |
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It looks like there are no more comments, I will be merging this later today. |
This was referenced Nov 15, 2022
jvosk
added a commit
to jvosk/AoC2022
that referenced
this pull request
Dec 8, 2022
- removed YAGNI code (`FSO` class) - improved input parsing/filesystem building fn - removed unneeded overhead function definitions (Filesystem.tail, Directory.add, Directory.dir_sizes) In theory, the `# type: ignore` hints (for `mypy` typechecking) should be able to be removed once python/mypy#14041 is integrated into the next release.
6 tasks
3 tasks
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@ilevkivskyi this hasn't been release yet, right? |
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No, not yet |
1 task
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Now it has. :) |
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Ref #12840
Fixes #11871
Fixes #14089
This is an alternative implementation to two existing PRs: #11666, #13133. This PR treats
typing.Selfas pure syntactic sugar, and transforms it into a type variable early during semantic analyzis.This way we can re-use all the existing machinery and handled edge cases for self-types. The only new thing is self-type for attributes (as proposed in the PEP). This required handling in several places, since attribute access is duplicated in several places (see #7724), plus special forms (like NamedTuples and TypedDicts) and dataclasses plugin require additional care, since they use attribute annotations in special ways.
I don't copy all the existing tests for "old style" self-types, but only some common use cases, possible error conditions, and relevant new edge cases, such as e.g. special forms mentioned above, and implicit type variable binding for callable types.
cc @Gobot1234 (author of original PRs)