File python3.13-support.patch of Package python-jedi

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File python3.13-support.patch of Package python-jedi (Revision c8e1dc157926975ddcc737a9b472755f)

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From 43902d83018c950c9ac1a97c58abc32838228867 Mon Sep 17 00:00:00 2001
From: Peter Law <PeterJCLaw@gmail.com>
Date: Thu, 4 Jul 2024 22:39:29 +0100
Subject: [PATCH 1/2] Merge branch 'ensure-unique-subprocess-reference-ids'

(cherry picked from commit e839683e91b78355f0363bcc6f74f762995344f8)
---
 jedi/api/environment.py                       |  15 +-
 .../inference/compiled/subprocess/__init__.py | 157 ++++++++++++++++--
 2 files changed, 152 insertions(+), 20 deletions(-)

diff --git a/jedi/api/environment.py b/jedi/api/environment.py
index 771a9a83..cfe8cfe3 100644
--- a/jedi/api/environment.py
+++ b/jedi/api/environment.py
@@ -8,6 +8,7 @@ import hashlib
 import filecmp
 from collections import namedtuple
 from shutil import which
+from typing import TYPE_CHECKING
 
 from jedi.cache import memoize_method, time_cache
 from jedi.inference.compiled.subprocess import CompiledSubprocess, \
@@ -15,6 +16,10 @@ from jedi.inference.compiled.subprocess import CompiledSubprocess, \
 
 import parso
 
+if TYPE_CHECKING:
+    from jedi.inference import InferenceState
+
+
 _VersionInfo = namedtuple('VersionInfo', 'major minor micro')  # type: ignore[name-match]
 
 _SUPPORTED_PYTHONS = ['3.12', '3.11', '3.10', '3.9', '3.8', '3.7', '3.6']
@@ -102,7 +107,10 @@ class Environment(_BaseEnvironment):
         version = '.'.join(str(i) for i in self.version_info)
         return '<%s: %s in %s>' % (self.__class__.__name__, version, self.path)
 
-    def get_inference_state_subprocess(self, inference_state):
+    def get_inference_state_subprocess(
+        self,
+        inference_state: 'InferenceState',
+    ) -> InferenceStateSubprocess:
         return InferenceStateSubprocess(inference_state, self._get_subprocess())
 
     @memoize_method
@@ -134,7 +142,10 @@ class SameEnvironment(_SameEnvironmentMixin, Environment):
 
 
 class InterpreterEnvironment(_SameEnvironmentMixin, _BaseEnvironment):
-    def get_inference_state_subprocess(self, inference_state):
+    def get_inference_state_subprocess(
+        self,
+        inference_state: 'InferenceState',
+    ) -> InferenceStateSameProcess:
         return InferenceStateSameProcess(inference_state)
 
     def get_sys_path(self):
diff --git a/jedi/inference/compiled/subprocess/__init__.py b/jedi/inference/compiled/subprocess/__init__.py
index cd5fe74c..3a6039f7 100644
--- a/jedi/inference/compiled/subprocess/__init__.py
+++ b/jedi/inference/compiled/subprocess/__init__.py
@@ -5,6 +5,23 @@ goals:
 1. Making it safer - Segfaults and RuntimeErrors as well as stdout/stderr can
    be ignored and dealt with.
 2. Make it possible to handle different Python versions as well as virtualenvs.
+
+The architecture here is briefly:
+ - For each Jedi `Environment` there is a corresponding subprocess which
+   operates within the target environment. If the subprocess dies it is replaced
+   at this level.
+ - `CompiledSubprocess` manages exactly one subprocess and handles communication
+   from the parent side.
+ - `Listener` runs within the subprocess, processing each request and yielding
+   results.
+ - `InterpreterEnvironment` provides an API which matches that of `Environment`,
+   but runs functionality inline rather than within a subprocess. It is thus
+   used both directly in places where a subprocess is unnecessary and/or
+   undesirable and also within subprocesses themselves.
+ - `InferenceStateSubprocess` (or `InferenceStateSameProcess`) provide high
+   level access to functionality within the subprocess from within the parent.
+   Each `InterpreterState` has an instance of one of these, provided by its
+   environment.
 """
 
 import collections
@@ -16,6 +33,7 @@ import traceback
 import weakref
 from functools import partial
 from threading import Thread
+from typing import Dict, TYPE_CHECKING
 
 from jedi._compatibility import pickle_dump, pickle_load
 from jedi import debug
@@ -25,6 +43,9 @@ from jedi.inference.compiled.access import DirectObjectAccess, AccessPath, \
     SignatureParam
 from jedi.api.exceptions import InternalError
 
+if TYPE_CHECKING:
+    from jedi.inference import InferenceState
+
 
 _MAIN_PATH = os.path.join(os.path.dirname(__file__), '__main__.py')
 PICKLE_PROTOCOL = 4
@@ -83,10 +104,9 @@ def _cleanup_process(process, thread):
 
 
 class _InferenceStateProcess:
-    def __init__(self, inference_state):
+    def __init__(self, inference_state: 'InferenceState') -> None:
         self._inference_state_weakref = weakref.ref(inference_state)
-        self._inference_state_id = id(inference_state)
-        self._handles = {}
+        self._handles: Dict[int, AccessHandle] = {}
 
     def get_or_create_access_handle(self, obj):
         id_ = id(obj)
@@ -116,11 +136,49 @@ class InferenceStateSameProcess(_InferenceStateProcess):
 
 
 class InferenceStateSubprocess(_InferenceStateProcess):
-    def __init__(self, inference_state, compiled_subprocess):
+    """
+    API to functionality which will run in a subprocess.
+
+    This mediates the interaction between an `InferenceState` and the actual
+    execution of functionality running within a `CompiledSubprocess`. Available
+    functions are defined in `.functions`, though should be accessed via
+    attributes on this class of the same name.
+
+    This class is responsible for indicating that the `InferenceState` within
+    the subprocess can be removed once the corresponding instance in the parent
+    goes away.
+    """
+
+    def __init__(
+        self,
+        inference_state: 'InferenceState',
+        compiled_subprocess: 'CompiledSubprocess',
+    ) -> None:
         super().__init__(inference_state)
         self._used = False
         self._compiled_subprocess = compiled_subprocess
 
+        # Opaque id we'll pass to the subprocess to identify the context (an
+        # `InferenceState`) which should be used for the request. This allows us
+        # to make subsequent requests which operate on results from previous
+        # ones, while keeping a single subprocess which can work with several
+        # contexts in the parent process. Once it is no longer needed(i.e: when
+        # this class goes away), we also use this id to indicate that the
+        # subprocess can discard the context.
+        #
+        # Note: this id is deliberately coupled to this class (and not to
+        # `InferenceState`) as this class manages access handle mappings which
+        # must correspond to those in the subprocess. This approach also avoids
+        # race conditions from successive `InferenceState`s with the same object
+        # id (as observed while adding support for Python 3.13).
+        #
+        # This value does not need to be the `id()` of this instance, we merely
+        # need to ensure that it enables the (visible) lifetime of the context
+        # within the subprocess to match that of this class. We therefore also
+        # depend on the semantics of `CompiledSubprocess.delete_inference_state`
+        # for correctness.
+        self._inference_state_id = id(self)
+
     def __getattr__(self, name):
         func = _get_function(name)
 
@@ -128,7 +186,7 @@ class InferenceStateSubprocess(_InferenceStateProcess):
             self._used = True
 
             result = self._compiled_subprocess.run(
-                self._inference_state_weakref(),
+                self._inference_state_id,
                 func,
                 args=args,
                 kwargs=kwargs,
@@ -164,6 +222,17 @@ class InferenceStateSubprocess(_InferenceStateProcess):
 
 
 class CompiledSubprocess:
+    """
+    A subprocess which runs inference within a target environment.
+
+    This class manages the interface to a single instance of such a process as
+    well as the lifecycle of the process itself. See `.__main__` and `Listener`
+    for the implementation of the subprocess and details of the protocol.
+
+    A single live instance of this is maintained by `jedi.api.environment.Environment`,
+    so that typically a single subprocess is used at a time.
+    """
+
     is_crashed = False
 
     def __init__(self, executable, env_vars=None):
@@ -213,18 +282,18 @@ class CompiledSubprocess:
                                                   t)
         return process
 
-    def run(self, inference_state, function, args=(), kwargs={}):
+    def run(self, inference_state_id, function, args=(), kwargs={}):
         # Delete old inference_states.
         while True:
             try:
-                inference_state_id = self._inference_state_deletion_queue.pop()
+                delete_id = self._inference_state_deletion_queue.pop()
             except IndexError:
                 break
             else:
-                self._send(inference_state_id, None)
+                self._send(delete_id, None)
 
         assert callable(function)
-        return self._send(id(inference_state), function, args, kwargs)
+        return self._send(inference_state_id, function, args, kwargs)
 
     def get_sys_path(self):
         return self._send(None, functions.get_sys_path, (), {})
@@ -272,21 +341,65 @@ class CompiledSubprocess:
 
     def delete_inference_state(self, inference_state_id):
         """
-        Currently we are not deleting inference_state instantly. They only get
-        deleted once the subprocess is used again. It would probably a better
-        solution to move all of this into a thread. However, the memory usage
-        of a single inference_state shouldn't be that high.
+        Indicate that an inference state (in the subprocess) is no longer
+        needed.
+
+        The state corresponding to the given id will become inaccessible and the
+        id may safely be re-used to refer to a different context.
+
+        Note: it is not guaranteed that the corresponding state will actually be
+        deleted immediately.
         """
-        # With an argument - the inference_state gets deleted.
+        # Warning: if changing the semantics of context deletion see the comment
+        # in `InferenceStateSubprocess.__init__` regarding potential race
+        # conditions.
+
+        # Currently we are not deleting the related state instantly. They only
+        # get deleted once the subprocess is used again. It would probably a
+        # better solution to move all of this into a thread. However, the memory
+        # usage of a single inference_state shouldn't be that high.
         self._inference_state_deletion_queue.append(inference_state_id)
 
 
 class Listener:
+    """
+    Main loop for the subprocess which actually does the inference.
+
+    This class runs within the target environment. It listens to instructions
+    from the parent process, runs inference and returns the results.
+
+    The subprocess has a long lifetime and is expected to process several
+    requests, including for different `InferenceState` instances in the parent.
+    See `CompiledSubprocess` for the parent half of the system.
+
+    Communication is via pickled data sent serially over stdin and stdout.
+    Stderr is read only if the child process crashes.
+
+    The request protocol is a 4-tuple of:
+     * inference_state_id | None: an opaque identifier of the parent's
+       `InferenceState`. An `InferenceState` operating over an
+       `InterpreterEnvironment` is created within this process for each of
+       these, ensuring that each parent context has a corresponding context
+       here. This allows context to be persisted between requests. Unless
+       `None`, the local `InferenceState` will be passed to the given function
+       as the first positional argument.
+     * function | None: the function to run. This is expected to be a member of
+       `.functions`. `None` indicates that the corresponding inference state is
+       no longer needed and should be dropped.
+     * args: positional arguments to the `function`. If any of these are
+       `AccessHandle` instances they will be adapted to the local
+       `InferenceState` before being passed.
+     * kwargs: keyword arguments to the `function`. If any of these are
+       `AccessHandle` instances they will be adapted to the local
+       `InferenceState` before being passed.
+
+    The result protocol is a 3-tuple of either:
+     * (False, None, function result): if the function returns without error, or
+     * (True, traceback, exception): if the function raises an exception
+    """
+
     def __init__(self):
         self._inference_states = {}
-        # TODO refactor so we don't need to process anymore just handle
-        # controlling.
-        self._process = _InferenceStateProcess(Listener)
 
     def _get_inference_state(self, function, inference_state_id):
         from jedi.inference import InferenceState
@@ -308,6 +421,9 @@ class Listener:
         if inference_state_id is None:
             return function(*args, **kwargs)
         elif function is None:
+            # Warning: if changing the semantics of context deletion see the comment
+            # in `InferenceStateSubprocess.__init__` regarding potential race
+            # conditions.
             del self._inference_states[inference_state_id]
         else:
             inference_state = self._get_inference_state(function, inference_state_id)
@@ -348,7 +464,12 @@ class Listener:
 
 
 class AccessHandle:
-    def __init__(self, subprocess, access, id_):
+    def __init__(
+        self,
+        subprocess: _InferenceStateProcess,
+        access: DirectObjectAccess,
+        id_: int,
+    ) -> None:
         self.access = access
         self._subprocess = subprocess
         self.id = id_
-- 
2.45.2

From 2a638c784ff63ab869626d23ce95856dece31a9b Mon Sep 17 00:00:00 2001
From: Peter Law <PeterJCLaw@gmail.com>
Date: Sat, 6 Jul 2024 11:39:06 +0100
Subject: [PATCH 2/2] Merge branch 'python-3.13'

(cherry picked from commit 82d1902f382ddac5b0e6647646b72f28a3181ec3)
---
 CHANGELOG.rst                         |  2 ++
 jedi/_compatibility.py                | 15 ++++++++++++++-
 jedi/api/environment.py               |  2 +-
 jedi/inference/__init__.py            |  2 +-
 setup.py                              |  5 +++--
 test/test_api/test_interpreter.py     | 13 +++++++++----
 test/test_inference/test_signature.py |  5 +++--
 test/test_utils.py                    | 14 ++++++++++----
 8 files changed, 43 insertions(+), 15 deletions(-)

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index fca94429..cf6810fa 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -6,6 +6,8 @@ Changelog
 Unreleased
 ++++++++++
 
+- Python 3.13 support
+
 0.19.1 (2023-10-02)
 +++++++++++++++++++
 
diff --git a/jedi/_compatibility.py b/jedi/_compatibility.py
index 13a74b7b..48563d00 100644
--- a/jedi/_compatibility.py
+++ b/jedi/_compatibility.py
@@ -5,11 +5,24 @@ different Python versions.
 import errno
 import sys
 import pickle
+from typing import Any
+
+
+class Unpickler(pickle.Unpickler):
+    def find_class(self, module: str, name: str) -> Any:
+        # Python 3.13 moved pathlib implementation out of __init__.py as part of
+        # generalising its implementation. Ensure that we support loading
+        # pickles from 3.13 on older version of Python. Since 3.13 maintained a
+        # compatible API, pickles from older Python work natively on the newer
+        # version.
+        if module == 'pathlib._local':
+            module = 'pathlib'
+        return super().find_class(module, name)
 
 
 def pickle_load(file):
     try:
-        return pickle.load(file)
+        return Unpickler(file).load()
     # Python on Windows don't throw EOF errors for pipes. So reraise them with
     # the correct type, which is caught upwards.
     except OSError:
diff --git a/jedi/api/environment.py b/jedi/api/environment.py
index cfe8cfe3..a2134110 100644
--- a/jedi/api/environment.py
+++ b/jedi/api/environment.py
@@ -22,7 +22,7 @@ if TYPE_CHECKING:
 
 _VersionInfo = namedtuple('VersionInfo', 'major minor micro')  # type: ignore[name-match]
 
-_SUPPORTED_PYTHONS = ['3.12', '3.11', '3.10', '3.9', '3.8', '3.7', '3.6']
+_SUPPORTED_PYTHONS = ['3.13', '3.12', '3.11', '3.10', '3.9', '3.8', '3.7', '3.6']
 _SAFE_PATHS = ['/usr/bin', '/usr/local/bin']
 _CONDA_VAR = 'CONDA_PREFIX'
 _CURRENT_VERSION = '%s.%s' % (sys.version_info.major, sys.version_info.minor)
diff --git a/jedi/inference/__init__.py b/jedi/inference/__init__.py
index aadfeba9..bd31cbd3 100644
--- a/jedi/inference/__init__.py
+++ b/jedi/inference/__init__.py
@@ -90,7 +90,7 @@ class InferenceState:
         self.compiled_subprocess = environment.get_inference_state_subprocess(self)
         self.grammar = environment.get_grammar()
 
-        self.latest_grammar = parso.load_grammar(version='3.12')
+        self.latest_grammar = parso.load_grammar(version='3.13')
         self.memoize_cache = {}  # for memoize decorators
         self.module_cache = imports.ModuleCache()  # does the job of `sys.modules`.
         self.stub_module_cache = {}  # Dict[Tuple[str, ...], Optional[ModuleValue]]
diff --git a/setup.py b/setup.py
index 68210ef2..ed1e67a4 100755
--- a/setup.py
+++ b/setup.py
@@ -35,8 +35,8 @@ setup(name='jedi',
       long_description=readme,
       packages=find_packages(exclude=['test', 'test.*']),
       python_requires='>=3.6',
-      # Python 3.11 & 3.12 grammars are added to parso in 0.8.3
-      install_requires=['parso>=0.8.3,<0.9.0'],
+      # Python 3.13 grammars are added to parso in 0.8.4
+      install_requires=['parso>=0.8.4,<0.9.0'],
       extras_require={
           'testing': [
               'pytest<7.0.0',
@@ -101,6 +101,7 @@ setup(name='jedi',
           'Programming Language :: Python :: 3.10',
           'Programming Language :: Python :: 3.11',
           'Programming Language :: Python :: 3.12',
+          'Programming Language :: Python :: 3.13',
           'Topic :: Software Development :: Libraries :: Python Modules',
           'Topic :: Text Editors :: Integrated Development Environments (IDE)',
           'Topic :: Utilities',
diff --git a/test/test_api/test_interpreter.py b/test/test_api/test_interpreter.py
index 74f066b8..efff7c5b 100644
--- a/test/test_api/test_interpreter.py
+++ b/test/test_api/test_interpreter.py
@@ -310,8 +310,9 @@ def test_completion_param_annotations():
     # Need to define this function not directly in Python. Otherwise Jedi is too
     # clever and uses the Python code instead of the signature object.
     code = 'def foo(a: 1, b: str, c: int = 1.0) -> bytes: pass'
-    exec(code, locals())
-    script = jedi.Interpreter('foo', [locals()])
+    exec_locals = {}
+    exec(code, exec_locals)
+    script = jedi.Interpreter('foo', [exec_locals])
     c, = script.complete()
     sig, = c.get_signatures()
     a, b, c = sig.params
@@ -323,7 +324,7 @@ def test_completion_param_annotations():
     assert b.description == 'param b: str'
     assert c.description == 'param c: int=1.0'
 
-    d, = jedi.Interpreter('foo()', [locals()]).infer()
+    d, = jedi.Interpreter('foo()', [exec_locals]).infer()
     assert d.name == 'bytes'
 
 
@@ -525,10 +526,14 @@ def test_partial_signatures(code, expected, index):
     c = functools.partial(func, 1, c=2)
 
     sig, = jedi.Interpreter(code, [locals()]).get_signatures()
-    assert sig.name == 'partial'
     assert [p.name for p in sig.params] == expected
     assert index == sig.index
 
+    if sys.version_info < (3, 13):
+        # Python 3.13.0b3 makes functools.partial be a descriptor, which breaks
+        # Jedi's `py__name__` detection; see https://github.com/davidhalter/jedi/issues/2012
+        assert sig.name == 'partial'
+
 
 def test_type_var():
     """This was an issue before, see Github #1369"""
diff --git a/test/test_inference/test_signature.py b/test/test_inference/test_signature.py
index f8f71581..4a1fcb62 100644
--- a/test/test_inference/test_signature.py
+++ b/test/test_inference/test_signature.py
@@ -1,5 +1,5 @@
 from textwrap import dedent
-from operator import ge, lt
+from operator import eq, ge, lt
 import re
 import os
 
@@ -14,7 +14,8 @@ from ..helpers import get_example_dir
         ('import math; math.cos', 'cos(x, /)', ['x'], ge, (3, 6)),
 
         ('next', 'next(iterator, default=None, /)', ['iterator', 'default'], lt, (3, 12)),
-        ('next', 'next()', [], ge, (3, 12)),
+        ('next', 'next()', [], eq, (3, 12)),
+        ('next', 'next(iterator, default=None, /)', ['iterator', 'default'], ge, (3, 13)),
 
         ('str', "str(object='', /) -> str", ['object'], ge, (3, 6)),
 
diff --git a/test/test_utils.py b/test/test_utils.py
index f17fc246..13786d38 100644
--- a/test/test_utils.py
+++ b/test/test_utils.py
@@ -73,15 +73,21 @@ class TestSetupReadline(unittest.TestCase):
         import os
         s = 'from os import '
         goal = {s + el for el in dir(os)}
+
         # There are minor differences, e.g. the dir doesn't include deleted
         # items as well as items that are not only available on linux.
         difference = set(self.complete(s)).symmetric_difference(goal)
+        ACCEPTED_DIFFERENCE_PREFIXES = [
+            '_', 'O_', 'EX_', 'EFD_', 'MFD_', 'TFD_',
+            'SF_', 'ST_', 'CLD_', 'POSIX_SPAWN_', 'P_',
+            'RWF_', 'CLONE_', 'SCHED_', 'SPLICE_',
+        ]
         difference = {
             x for x in difference
-            if all(not x.startswith('from os import ' + s)
-                   for s in ['_', 'O_', 'EX_', 'MFD_', 'SF_', 'ST_',
-                             'CLD_', 'POSIX_SPAWN_', 'P_', 'RWF_',
-                             'CLONE_', 'SCHED_'])
+            if not any(
+                x.startswith('from os import ' + prefix)
+                for prefix in ACCEPTED_DIFFERENCE_PREFIXES
+            )
         }
         # There are quite a few differences, because both Windows and Linux
         # (posix and nt) libraries are included.
-- 
2.45.2

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