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gh-131196: Improve perfomance of UUID.hex and UUID.__str__ by using bytes.hex() #131197

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Merged
merged 5 commits into from
Mar 13, 2025
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gh-131196: Improve perfomance of UUID.hex and UUID.__str__ by using bytes.hex() #131197

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1e2b4e3
Improve perfomance of UUID.hex and UUID.__str__ by using bytes.hex()
booqoffsky Mar 13, 2025
32e69e6
Update News
booqoffsky Mar 13, 2025
6ed5b81
Update News
booqoffsky Mar 13, 2025
d7ec5d9
Fix __str__ method
booqoffsky Mar 13, 2025
fa09e18
Update NEWS
booqoffsky Mar 13, 2025
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7 changes: 3 additions & 4 deletions Lib/uuid.py
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Original file line number Diff line number Diff line change
Expand Up @@ -321,9 +321,8 @@ def __setattr__(self, name, value):
raise TypeError('UUID objects are immutable')

def __str__(self):
hex = '%032x' % self.int
return '%s-%s-%s-%s-%s' % (
hex[:8], hex[8:12], hex[12:16], hex[16:20], hex[20:])
x = self.hex
return f'{x[:8]}-{x[8:12]}-{x[12:16]}-{x[16:20]}-{x[20:]}'

@property
def bytes(self):
Expand Down Expand Up @@ -387,7 +386,7 @@ def node(self):

@property
def hex(self):
return '%032x' % self.int
return self.bytes.hex()

@property
def urn(self):
Expand Down
1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Library/2025-03-13-19-53-57.gh-issue-131196.3sBFv2.rst
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@@ -0,0 +1 @@
Improve perfomance of :attr:`uuid.UUID.hex` and :meth:`uuid.UUID.__str__ <object.__str__>`.
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