D7005: py3: manually import pycompat.open into files that need it

[martinvonz (Martin von Zweigbergk)]

martinvonz added a comment.


  Can we import `io.open` regardless of Python version instead?

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D7005/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D7005

To: indygreg, durin42, martinvonz, #hg-reviewers
Cc: mercurial-devel