Remove old macOS workaround and _load_system_functions body

Author: zooba

Lib/uuid.py

@@ -565,54 +565,31 @@ def _netbios_getnode():
  return _windll_getnode()
 
 
-
-_generate_time_safe = _UuidCreate = None
-_has_uuid_generate_time_safe = None
-
 # Import optional C extension at toplevel, to help disabling it when testing
 try:
  import _uuid
+ _generate_time_safe = getattr(_uuid, "generate_time_safe", None)
+ _UuidCreate = getattr(_uuid, "UuidCreate", None)
+ _has_uuid_generate_time_safe = _uuid.has_uuid_generate_time_safe
 except ImportError:
  _uuid = None
+ _generate_time_safe = None
+ _UuidCreate = None
+ _has_uuid_generate_time_safe = None
 
 
 def _load_system_functions():
- """
- Try to load platform-specific functions for generating uuids.
- """
- global _generate_time_safe, _UuidCreate, _has_uuid_generate_time_safe
-
- if _has_uuid_generate_time_safe is not None:
- return
-
- _has_uuid_generate_time_safe = False
-
- if sys.platform == "darwin" and int(os.uname().release.split('.')[0]) < 9:
- # The uuid_generate_* functions are broken on MacOS X 10.5, as noted
- # in issue #8621 the function generates the same sequence of values
- # in the parent process and all children created using fork (unless
- # those children use exec as well).
- #
- # Assume that the uuid_generate functions are broken from 10.5 onward,
- # the test can be adjusted when a later version is fixed.
- pass
- elif _uuid is not None:
- _generate_time_safe = getattr(_uuid, "generate_time_safe", None)
- _UuidCreate = getattr(_uuid, "UuidCreate", None)
- _has_uuid_generate_time_safe = _uuid.has_uuid_generate_time_safe
+ """[DEPRECATED] Platform-specific functions loaded at import time"""
 
 
 def _unix_getnode():
- """Get the hardware address on Unix using the _uuid extension module
- or ctypes."""
- _load_system_functions()
+ """Get the hardware address on Unix using the _uuid extension module."""
  if _generate_time_safe:
  uuid_time, _ = _generate_time_safe()
  return UUID(bytes=uuid_time).node
 
 def _windll_getnode():
- """Get the hardware address on Windows using UuidCreateSequential."""
- _load_system_functions()
+ """Get the hardware address on Windows using the _uuid extension module."""
  if _UuidCreate:
  uuid_bytes = _UuidCreate()
  return UUID(bytes_le=uuid_bytes).node
@@ -692,7 +669,6 @@ def uuid1(node=None, clock_seq=None):
 
  # When the system provides a version-1 UUID generator, use it (but don't
  # use UuidCreate here because its UUIDs don't conform to RFC 4122).
- _load_system_functions()
  if _generate_time_safe is not None and node is clock_seq is None:
  uuid_time, safely_generated = _generate_time_safe()
  try: