[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@…):

 To reproduce the problem,
  (1) Install mailman 2.1.20 or earlier in the same path the MacPorts will
 install mailman-2.1.22
 or
  (2) Place empty file as Mailman/i18n.py to the path the mailman-2.1.22
 MacPorts will install Mailman/i18n.py module to.
 then try to install mailman-2.1.22 via MacPorts.

 To fix it,
 (A) Abandon to run check_perms before install
 or
 (B) For destroot phase, create special version of check_perms which refers
 modules from under ${destroot} precedingly

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Ticket URL: <https://trac.macports.org/ticket/51417#comment:8>
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