diff --git a/Lib/test/pickletester.py b/Lib/test/pickletester.py
index 499f80a15f3422..6e87370c2065ba 100644
--- a/Lib/test/pickletester.py
+++ b/Lib/test/pickletester.py
@@ -1,3 +1,4 @@
+import builtins
import collections
import copyreg
import dbm
@@ -11,6 +12,7 @@
import struct
import sys
import threading
+import types
import unittest
import weakref
from textwrap import dedent
@@ -1980,6 +1982,33 @@ def test_singleton_types(self):
u = self.loads(s)
self.assertIs(type(singleton), u)
+ def test_builtin_types(self):
+ for t in builtins.__dict__.values():
+ if isinstance(t, type) and not issubclass(t, BaseException):
+ for proto in protocols:
+ s = self.dumps(t, proto)
+ self.assertIs(self.loads(s), t)
+
+ def test_builtin_exceptions(self):
+ for t in builtins.__dict__.values():
+ if isinstance(t, type) and issubclass(t, BaseException):
+ for proto in protocols:
+ s = self.dumps(t, proto)
+ u = self.loads(s)
+ if proto <= 2 and issubclass(t, OSError) and t is not BlockingIOError:
+ self.assertIs(u, OSError)
+ elif proto <= 2 and issubclass(t, ImportError):
+ self.assertIs(u, ImportError)
+ else:
+ self.assertIs(u, t)
+
+ def test_builtin_functions(self):
+ for t in builtins.__dict__.values():
+ if isinstance(t, types.BuiltinFunctionType):
+ for proto in protocols:
+ s = self.dumps(t, proto)
+ self.assertIs(self.loads(s), t)
+
# Tests for protocol 2
def test_proto(self):
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