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bpo-30977: define uuid.UUID.__slots__ to save memory #2785

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wbolster wants to merge 1 commit into from
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bpo-30977: define uuid.UUID.__slots__ to save memory #2785

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6 changes: 4 additions & 2 deletions Lib/uuid.py
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Original file line number Diff line number Diff line change
Expand Up @@ -117,6 +117,8 @@ class UUID:
uuid_generate_time_safe(3).
"""

__slots__ = ('int', 'is_safe')

def __init__(self, hex=None, bytes=None, bytes_le=None, fields=None,
int=None, version=None,
*, is_safe=SafeUUID.unknown):
Expand Down Expand Up @@ -200,8 +202,8 @@ def __init__(self, hex=None, bytes=None, bytes_le=None, fields=None,
# Set the version number.
int &= ~(0xf000 << 64)
int |= version << 76
self.__dict__['int'] = int
self.__dict__['is_safe'] = is_safe
super().__setattr__('int', int)
super().__setattr__('is_safe', is_safe)
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@vstinner vstinner Sep 28, 2017 •
edited by serhiy-storchaka
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I suggest to use object.__setattr__(self, 'int', int).


def __eq__(self, other):
if isinstance(other, UUID):
Expand Down