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perf: better string building #997

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Merged
henryiii merged 2 commits into from
Jan 6, 2026
Merged

perf: better string building #997

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8b367b1
perf: better string building
henryiii Nov 27, 2025
4ebd365
perf: inline base_version
henryiii Jan 5, 2026
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17 changes: 11 additions & 6 deletions src/packaging/version.py
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Original file line number Diff line number Diff line change
Expand Up @@ -377,25 +377,30 @@ def __str__(self) -> str:
>>> str(Version("1.0a5"))
'1.0a5'
"""
parts = [self.base_version]
# This is a hot function, so not calling self.base_version
version = ".".join(map(str, self.release))

# Epoch
if self.epoch:
version = f"{self.epoch}!{version}"

# Pre-release
if self.pre is not None:
parts.append("".join(map(str, self.pre)))
version += "".join(map(str, self.pre))

# Post-release
if self.post is not None:
parts.append(f".post{self.post}")
version += f".post{self.post}"

# Development release
if self.dev is not None:
parts.append(f".dev{self.dev}")
version += f".dev{self.dev}"

# Local version segment
if self.local is not None:
parts.append(f"+{self.local}")
version += f"+{self.local}"

return "".join(parts)
return version

@property
def _str(self) -> str:
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