Opened 9 years ago

Closed 8 years ago

#345 closed enhancement (fixed)

trac installation detection exception false positive

Reported by: quinn@… Owned by: bas
Priority: major Milestone:
Component: email2trac Version: 2.8.4
Keywords: Cc:


On a new installation of email2trac 2.8.4, I got this error:

{q@oak/0 ~} echo hello | sudo -u apache /usr/bin/email2trac --project=asdf
Can not find a a valid trac installation, solutions could be:
        set PYTHONPATH
        use the --virtualenv <dir> option

However Trac is installed in the default location, and python is able to
find it with the default configuration:

{q@oak/0 ~} python -c 'from trac import __version__ as trac_version; print

So I discovered the problem is not that email2trac cannot find Trac, but
that there was a missing dependancy. I modified /usr/bin/email2trac to
display the detail of the exception:

--- /usr/bin/email2trac.orig    2014-11-17 09:25:11.000000000 -0600
+++ /usr/bin/email2trac 2014-11-17 09:25:16.000000000 -0600
@@ -2755,6 +2755,7 @@
         from trac import config as trac_config

     except ImportError, detail:
+        print detail
         print "Can not find a a valid trac installation, solutions could
         print "\tset PYTHONPATH"
         print "\tuse the --virtualenv <dir> option"

And it displayed this:

{q@oak/0 ~} echo hello | sudo -u apache /usr/bin/email2trac --project=ex
No module named genshi.builder
Can not find a a valid trac installation, solutions could be:
        set PYTHONPATH
        use the --virtualenv <dir> option

Installing package `python-genshi` solved the problem. However, while
installing the `python-genshi` package (version 0.5.1-7.1.el6) fixed the
problem, allowing email2trac to run correctly, it broke Trac exactly in the
way described by this user:
<>. When I have only the
package `python-genshi06` installed with Trac 0.12.5 it works fine, but not

In reference to this problem, setting `PYTHONPATH` didn't help. instead I
found the solution was to create a symlink:
sudo ln -s /usr/lib/python2.6/site-packages/Genshi-0.6-py2.6.egg/genshi

This is probably only a problem for CentOS/RHEL users who have Trac
installed form the EPEL repository.


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Change History (2)

comment:1 Changed 9 years ago by bas

  • Status changed from new to assigned
  • Type changed from defect to enhancement

Thanks for the patch. I will apply it, it improves the error message

comment:2 Changed 8 years ago by bas

  • Resolution set to fixed
  • Status changed from assigned to closed

In 656:

improve error messag when email2trac fails to start, closes #345

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