[MacPorts] #53620: bzr 2.6.0: throws TypeError: first argument must be string or compiled pattern

[MacPorts]

#53620: bzr 2.6.0: throws TypeError: first argument must be string or compiled
pattern
---------------------+-------------------
 Reporter:  dorward  |      Owner:
     Type:  defect   |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.4.0
 Keywords:           |       Port:  bzr
---------------------+-------------------
 Most operations with bzr (including bzr pull) are throwing this error:

 {{{

   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/re.py",
 line 247, in _compile
     raise TypeError, "first argument must be string or compiled pattern"
 TypeError: first argument must be string or compiled pattern

 bzr 2.6.0 on python 2.7.13 (Darwin-16.4.0-x86_64-i386-64bit)
 arguments: ['/opt/local/bin/bzr', 'pull']
 plugins: bash_completion[2.6.0], bisect[1.1.0dev], changelog_merge[2.6.0],
     diff_revid[unknown], extmerge[unknown], fastimport[0.14.0dev],
     grep[2.6.0], launchpad[2.6.0], netrc_credential_store[2.6.0],
     news_merge[2.6.0], po_merge[2.6.0], qbzr[0.23.2], weave_fmt[2.6.0]
 encoding: 'utf-8', fsenc: 'utf-8', lang: 'en_GB.UTF-8'

 }}}

 It appears to be the same as this upstream bug:
 https://bugs.launchpad.net/bzr/+bug/1644003

 That bug has an upstream fix. Given the decision not to upgrade in ports (
 https://trac.macports.org/ticket/52561 ), can the fix be backported?

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Ticket URL: <https://trac.macports.org/ticket/53620>
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