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| author | Grigory Bukovsky <32143244+booqoffsky@users.noreply.github.com> | 2025-03-13 22:57:38 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-03-13 22:57:38 (GMT) |
| commit | 1121c80fdad1fc1a175f4691f33272cf28a66e83 (patch) | |
| tree | 7c4db6e8f582c31cdbd34278d000dfd9939ebb3c | |
| parent | d7d22899e2fdfdc707f98d7297d9406de91b7e0d (diff) | |
| download | cpython-1121c80fdad1fc1a175f4691f33272cf28a66e83.zip cpython-1121c80fdad1fc1a175f4691f33272cf28a66e83.tar.gz cpython-1121c80fdad1fc1a175f4691f33272cf28a66e83.tar.bz2 | |
gh-131196: Improve perfomance of `UUID.hex` and `UUID.__str__` by ~10% (#131197)
Results before and after the fix:
```
hex
before: 0.021755493999989994
after: 0.01465080400066654
str
before: 0.06381790500017814
after: 0.05134949700004654
```
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
| -rw-r--r-- | Lib/uuid.py | 7 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Library/2025-03-13-19-53-57.gh-issue-131196.3sBFv2.rst | 1 |
2 files changed, 4 insertions, 4 deletions
diff --git a/Lib/uuid.py b/Lib/uuid.py index 7a12b48..6f7a7a3 100644 --- a/Lib/uuid.py +++ b/Lib/uuid.py @@ -321,9 +321,8 @@ class UUID: 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): @@ -387,7 +386,7 @@ class UUID: @property def hex(self): - return '%032x' % self.int + return self.bytes.hex() @property def urn(self): diff --git a/Misc/NEWS.d/next/Library/2025-03-13-19-53-57.gh-issue-131196.3sBFv2.rst b/Misc/NEWS.d/next/Library/2025-03-13-19-53-57.gh-issue-131196.3sBFv2.rst new file mode 100644 index 0000000..72c10fe --- /dev/null +++ b/Misc/NEWS.d/next/Library/2025-03-13-19-53-57.gh-issue-131196.3sBFv2.rst @@ -0,0 +1 @@ +Improve perfomance of :attr:`uuid.UUID.hex` and :meth:`uuid.UUID.__str__ <object.__str__>`. |