Merge lp:~sambuddhabasu1/mailman/fix_mailman_run_error into lp:mailman

[Sambuddha Basu]

The error message that showed up on running 'mailman start' was:

/usr/bin/python3: can't open file '/usr/bin/master': [Errno 2] No such file or directory

This was caused as the file was searching for '/usr/bin/master' which is not present. Rather it should search for '/usr/local/bin/master'.

[Barry Warsaw (barry)]

You might be right that sys.executable isn't the right thing to use, but I also don't think sys.path[0] is right either. Try running the test suite with `tox` to see the problems. Maybe using the directory of sys.argv[0] is better?

review: Needs Fixing

[Barry Warsaw (barry)]

The reason this doesn't work is because the test suite will fail. However, I've adapted this and will apply it to the release-3.0 and master git branches.

=== modified file 'src/mailman/config/config.py'
--- src/mailman/config/config.py	2015-01-06 02:12:52 +0000
+++ src/mailman/config/config.py	2015-03-03 22:26:47 +0000
@@ -135,7 +135,7 @@
     def _expand_paths(self):
         """Expand all configuration paths."""
         # Set up directories.
-        bin_dir = os.path.abspath(os.path.dirname(sys.executable))
+        bin_dir = os.path.abspath(sys.path[0])
         # Now that we've loaded all the configuration files we're going to
         # load, set up some useful directories based on the settings in the
         # configuration file.