feat: Preliminary support for Python 3.13 (getsentry#3200)

turicas · turicas · commit 298a192222cd · 2025-06-06T06:14:46.000-03:00
Partial cherry-pick of: a98f660 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
diff --git a/sentry_sdk/utils.py b/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__
