D7380: encoding: define per-use identity functions only in typechecking mode

[yuja (Yuya Nishihara)]

yuja added a comment.


  >   strtolocal = pycompat.identity  # type: (str) -> bytes
  >   strfromlocal = pycompat.identity  # type: (bytes) -> str
  
  `# type: Callable[[str], bytes]` might work. pytype complained
  `# type: ... -> ...` is an invalid type comment.

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D7380/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D7380

To: durin42, #hg-reviewers
Cc: yuja, dlax, mercurial-devel