feat: Preliminary support for Python 3.13 (#3200)

Adding preliminary support for Python 3.13.

The `_partialmethod` attribute of methods wrapped with `partialmethod()`
was renamed to `__partialmethod__` in CPython 3.13:
python/cpython#16600

Starting from Python 3.13, `frame.f_locals` is not `dict` anymore, but
`FrameLocalsProxy`, that cannot be copied using `copy.copy()`. In Python
3.13 and later, it should be copied using a method `.copy()`. The new way
of copying works the same as the old one for versions of Python prior to
3.13, according to the documentation (both copying methods produce a
shallow copy).

Since Python 3.13, `FrameLocalsProxy` skips items of `locals()` that have
non-`str` keys; this is a CPython implementation detail, so we hence
disable `test_non_string_variables` test on Python 3.13.

See:
https://peps.python.org/pep-0667/
python/cpython#118921
python/cpython#118923
https://docs.python.org/3.13/whatsnew/3.13.html#porting-to-python-3-13
https://docs.python.org/3/library/copy.html
https://github.com/python/cpython/blame/7b413952e817ae87bfda2ac85dd84d30a6ce743b/Objects/frameobject.c#L148

---------

Co-authored-by: Roman Inflianskas <rominf@pm.me>

Author: sentrivana

.github/workflows/test-integrations-ai.yml

@@ -36,6 +36,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox
@@ -96,6 +97,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox

.github/workflows/test-integrations-aws-lambda.yml

@@ -71,6 +71,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox

.github/workflows/test-integrations-cloud-computing.yml

@@ -36,6 +36,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox
@@ -92,6 +93,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox

.github/workflows/test-integrations-common.yml

@@ -25,7 +25,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.6","3.7","3.8","3.9","3.10","3.11","3.12"]
+        python-version: ["3.6","3.7","3.8","3.9","3.10","3.11","3.12","3.13"]
         # python3.6 reached EOL and is no longer being supported on
         # new versions of hosted runners on Github Actions
         # ubuntu-20.04 is the last version that supported python3.6
@@ -36,6 +36,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox

.github/workflows/test-integrations-data-processing.yml

@@ -36,6 +36,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Start Redis
         uses: supercharge/redis-github-action@1.8.0
       - name: Setup Test Env
@@ -102,6 +103,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Start Redis
         uses: supercharge/redis-github-action@1.8.0
       - name: Setup Test Env

.github/workflows/test-integrations-databases.yml

@@ -54,6 +54,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - uses: getsentry/action-clickhouse-in-ci@v1
       - name: Setup Test Env
         run: |
@@ -137,6 +138,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - uses: getsentry/action-clickhouse-in-ci@v1
       - name: Setup Test Env
         run: |

.github/workflows/test-integrations-graphql.yml

@@ -36,6 +36,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox
@@ -92,6 +93,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox

.github/workflows/test-integrations-miscellaneous.yml

@@ -36,6 +36,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox
@@ -96,6 +97,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox

.github/workflows/test-integrations-networking.yml

@@ -36,6 +36,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox
@@ -92,6 +93,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox

.github/workflows/test-integrations-web-frameworks-1.yml

@@ -54,6 +54,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox
@@ -128,6 +129,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox

.github/workflows/test-integrations-web-frameworks-2.yml

@@ -36,6 +36,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox
@@ -112,6 +113,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Setup Test Env
         run: |
           pip install coverage tox

scripts/split-tox-gh-actions/templates/test_group.jinja

@@ -49,6 +49,7 @@
       - uses: actions/setup-python@v5
         with:
           python-version: {% raw %}${{ matrix.python-version }}{% endraw %}
+          allow-prereleases: true
       {% if needs_clickhouse %}
       - uses: getsentry/action-clickhouse-in-ci@v1
       {% endif %}

sentry_sdk/utils.py

@@ -11,7 +11,6 @@
 import threading
 import time
 from collections import namedtuple
-from copy import copy
 from datetime import datetime
 from decimal import Decimal
 from functools import partial, partialmethod, wraps
@@ -611,7 +610,7 @@ def serialize_frame(
         )
 
     if include_local_variables:
-        rv["vars"] = copy(frame.f_locals)
+        rv["vars"] = frame.f_locals.copy()
 
     return rv
 
@@ -1330,14 +1329,18 @@ def qualname_from_function(func):
 
     prefix, suffix = "", ""
 
-    if hasattr(func, "_partialmethod") and isinstance(
-        func._partialmethod, partialmethod
-    ):
-        prefix, suffix = "partialmethod(<function ", ">)"
-        func = func._partialmethod.func
-    elif isinstance(func, partial) and hasattr(func.func, "__name__"):
+    if isinstance(func, partial) and hasattr(func.func, "__name__"):
         prefix, suffix = "partial(<function ", ">)"
         func = func.func
+    else:
+        # The _partialmethod attribute of methods wrapped with partialmethod() was renamed to __partialmethod__ in CPython 3.13:
+        # https://github.com/python/cpython/pull/16600
+        partial_method = getattr(func, "_partialmethod", None) or getattr(
+            func, "__partialmethod__", None
+        )
+        if isinstance(partial_method, partialmethod):
+            prefix, suffix = "partialmethod(<function ", ">)"
+            func = partial_method.func
 
     if hasattr(func, "__qualname__"):
         func_qualname = func.__qualname__

tests/test_client.py

@@ -33,6 +33,12 @@
     from sentry_sdk._types import Event
 
 
+maximum_python_312 = pytest.mark.skipif(
+    sys.version_info > (3, 12),
+    reason="Since Python 3.13, `FrameLocalsProxy` skips items of `locals()` that have non-`str` keys; this is a CPython implementation detail: https://github.com/python/cpython/blame/7b413952e817ae87bfda2ac85dd84d30a6ce743b/Objects/frameobject.c#L148",
+)
+
+
 class EnvelopeCapturedError(Exception):
     pass
 
@@ -889,6 +895,7 @@ class FooError(Exception):
     assert exception["mechanism"]["meta"]["errno"]["number"] == 69
 
 
+@maximum_python_312
 def test_non_string_variables(sentry_init, capture_events):
     """There is some extremely terrible code in the wild that
     inserts non-strings as variable names into `locals()`."""

tox.ini

@@ -9,7 +9,7 @@ requires =
     virtualenv<20.26.3
 envlist =
     # === Common ===
-    {py3.6,py3.7,py3.8,py3.9,py3.10,py3.11,py3.12}-common
+    {py3.6,py3.7,py3.8,py3.9,py3.10,py3.11,py3.12,py3.13}-common
 
     # === Gevent ===
     {py3.6,py3.8,py3.10,py3.11,py3.12}-gevent
@@ -271,11 +271,12 @@ deps =
 
     # === Common ===
     py3.8-common: hypothesis
-    {py3.6,py3.7,py3.8,py3.9,py3.10,py3.11,py3.12}-common: pytest-asyncio
+    {py3.6,py3.7,py3.8,py3.9,py3.10,py3.11,py3.12,py3.13}-common: pytest-asyncio
     # See https://github.com/pytest-dev/pytest/issues/9621
     # and https://github.com/pytest-dev/pytest-forked/issues/67
     # for justification of the upper bound on pytest
     {py3.6,py3.7,py3.8,py3.9,py3.10,py3.11,py3.12}-common: pytest<7.0.0
+    py3.13-common: pytest
 
     # === Gevent ===
     {py3.6,py3.7,py3.8,py3.9,py3.10,py3.11}-gevent: gevent>=22.10.0, <22.11.0