What’s the difference between “linesep” and “self.policy.linesep” in Lib.email.generator.Generator._write_headers?

[mcepl]

cpython/Lib/email/generator.py

Line 230 in 325e9b8

if not folded.endswith(self.policy.linesep):

Is there something special in the difference between linesep or self.policy.linesep or is it just a typo?

Linked PRs

• gh-122989: Replace “self.policy.linesep” with “linesep” #123002
• gh-122989: do not gett value of already cached self.policy.linesep #123012

[terryjreedy]

Since the previous line 229 is linesep = self.policy.linesep, the self.policy in 230 is redundant, and should better be removed. I'd call this a buglet, though 'performance' might be a better label.

[bitdancer]

Yeah, it's probably a refactoring leftover from when the code was written.