In case of 'AttributeError', 'value' is None, so do not try to
access it.
Submitted upstream.

--- pybugz-0.6.11/bugz.py	2006-09-02 14:35:37.000000000 +0200
+++ pybugz-0.6.11/bugz.py	2014-05-05 16:02:20.000000000 +0200
@@ -1249,9 +1254,9 @@ class PrettyBugz(Bugz):
         for field, name in FIELDS + MORE_FIELDS:
             try:
                 value = result.find('//%s' % field).text
+                print '%-12s: %s' % (name, value.encode(self.enc))
             except AttributeError:
                 continue
-            print '%-12s: %s' % (name, value.encode(self.enc))
 
         # Print out the cc'ed people
         cced = result.findall('.//cc')
db2121d72068e2b203e86cd'/><select name='h' onchange='this.form.submit();'>
<option value='koszko' selected='selected'>koszko</option>
<option value='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=fde2aec3f498d5ec6db2121d72068e2b203e86cd'>refs</a><a class='active' href='/guix/log/build-aux/pre-inst-env.in'>log</a><a href='/guix/tree/build-aux/pre-inst-env.in?id=fde2aec3f498d5ec6db2121d72068e2b203e86cd'>tree</a><a href='/guix/commit/build-aux/pre-inst-env.in?id=fde2aec3f498d5ec6db2121d72068e2b203e86cd'>commit</a><a href='/guix/diff/build-aux/pre-inst-env.in?id=fde2aec3f498d5ec6db2121d72068e2b203e86cd'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/build-aux/pre-inst-env.in'>
<input type='hidden' name='id' value='fde2aec3f498d5ec6db2121d72068e2b203e86cd'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=fde2aec3f498d5ec6db2121d72068e2b203e86cd'>root</a>/<a href='/guix/log/build-aux?id=fde2aec3f498d5ec6db2121d72068e2b203e86cd'>build-aux</a>/<a href='/guix/log/build-aux/pre-inst-env.in?id=fde2aec3f498d5ec6db2121d72068e2b203e86cd'>pre-inst-env.in</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/build-aux/pre-inst-env.in?id=fde2aec3f498d5ec6db2121d72068e2b203e86cd&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-09-08 11:49:24 +0200'>2019-09-08</span></td><td><a href='/guix/commit/build-aux/pre-inst-env.in?id=82f903e70f580c34503052245625354d2f097d7e'>daemon: Remove 'NIX_LIBEXEC_DIR'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-09-08 11:49:24 +0200'>2019-09-08</span></td><td><a href='/guix/commit/build-aux/pre-inst-env.in?id=bc69ea2d605810cc32e13ed03d5848b8dc358b61'>daemon: Run 'guix offload' directly.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-09-08 11:49:24 +0200'>2019-09-08</span></td><td><a href='/guix/commit/build-aux/pre-inst-env.in?id=2e3e5d21988fc2cafb2a9eaf4b00976ea425629d'>daemon: Invoke 'guix gc --list-busy' instead of 'list-runtime-roots'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>