[MacPorts] #51417: mailman @2.1.22_0: ImportError: cannot import name C_

[MacPorts]

#51417: mailman @2.1.22_0: ImportError: cannot import name C_
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  Reporter:  gotow@…  |      Owner:  mps@…
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.3.4
Resolution:           |   Keywords:
      Port:  mailman  |
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Comment (by macports-bug-report-yf@…):

 > (1) It checks files/dirs permission of installed environment, including
 /etc, working directories, archive directories, etc., with absolute paths
 (i.e. not checking under staging root dir).[[BR]]

 I'm very sorry this is not correct, because files/patch-Defaults.py.in
 modifies Mailman/Defaults.py.in,
 which allows to check under ${DESTDIR} specified by environment variable.

 However, on bin/check_perms (or other scripts) execution, bin/paths.py is
 imported before mm_cfg.py and Defaults.py,
 so ${sharedir} is inserted to the top of module search path, so mm_cfg.py,
 Defaults.py and other Mailman modules are
 imported from ${sharedir} if old installation exists.

 To avoid this, you can modify misc/paths.py.in to refer DESTDIR
 environment variable in the same way as Mailman/Defaults.py.in ,
 which is modified by ports file patch-Defaults.py.in .
 (This will change not only bin/paths.py, but also cron/paths.py,
 scripts/paths.py, and tests/paths.py, though)

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Ticket URL: <https://trac.macports.org/ticket/51417#comment:13>
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