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')
 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=6fcb90eebd5e21a042ed9746fcbaa2040706ea71'>refs</a><a class='active' href='/guix/log/TODO'>log</a><a href='/guix/tree/TODO?id=6fcb90eebd5e21a042ed9746fcbaa2040706ea71'>tree</a><a href='/guix/commit/TODO?id=6fcb90eebd5e21a042ed9746fcbaa2040706ea71'>commit</a><a href='/guix/diff/TODO?id=6fcb90eebd5e21a042ed9746fcbaa2040706ea71'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/TODO'>
<input type='hidden' name='id' value='6fcb90eebd5e21a042ed9746fcbaa2040706ea71'/><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=6fcb90eebd5e21a042ed9746fcbaa2040706ea71'>root</a>/<a href='/guix/log/TODO?id=6fcb90eebd5e21a042ed9746fcbaa2040706ea71'>TODO</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/TODO?id=6fcb90eebd5e21a042ed9746fcbaa2040706ea71&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2016-09-01 14:57:03 +0200'>2016-09-01</span></td><td><a href='/guix/commit/TODO?id=e5cd149f681cc8d285da6c7638b70a43b333f337'>Update 'TODO'.</a><span class='msg-avail'>...</span></td><td>Vincent Legoll</td></tr>
<tr><td><span title='2014-09-16 21:11:03 +0200'>2014-09-16</span></td><td><a href='/guix/commit/TODO?id=d6af2518681643a170796ca8e267cc8097f910f1'>Remove outdated items from 'TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2014-04-29 17:59:23 +0200'>2014-04-29</span></td><td><a href='/guix/commit/TODO?id=0423b7847baccf630349a5fc6bfa3317936467ef'>Update 'TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-12-22 01:11:12 +0100'>2013-12-22</span></td><td><a href='/guix/commit/TODO?id=d6b5e4bbbdc69f78ccccf0186153d0744b7f399d'>Update 'TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-12-20 00:37:41 +0100'>2013-12-20</span></td><td><a href='/guix/commit/TODO?id=971cb56dd0c1a1cb265d2adfe41730cd2f8c5c22'>Update 'TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-10-09 00:12:46 +0200'>2013-10-09</span></td><td><a href='/guix/commit/TODO?id=470d08ffccd95673545cf13aacd918d4eb5fa977'>Update 'TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-10-06 22:55:36 +0200'>2013-10-06</span></td><td><a href='/guix/commit/TODO?id=5d388c7c3f31b956182f7f88cc06896cba28d9bf'>Augment 'TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-08-23 11:37:10 +0200'>2013-08-23</span></td><td><a href='/guix/commit/TODO?id=290d437097094f82e53eac602b7a6b6037e89f2a'>Add TODO item.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-07-19 23:22:59 +0200'>2013-07-19</span></td><td><a href='/guix/commit/TODO?id=3dfd7cef0dc7b868354cbbc9ca30d837a3a8b30d'>Update `TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-07-03 01:18:28 +0200'>2013-07-03</span></td><td><a href='/guix/commit/TODO?id=423002544d7f1b57c361445c65dfcdd905b07ac2'>Update `NEWS' and `TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-06-14 17:05:49 +0200'>2013-06-14</span></td><td><a href='/guix/commit/TODO?id=3e5980de4724eaeff19d914ad07f944faf4abd3c'>Update `TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-05-17 23:15:49 +0200'>2013-05-17</span></td><td><a href='/guix/commit/TODO?id=499b8d1f845cfea3e4a2258c7ae55fc823d6f5f0'>Update `TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-05-10 21:08:01 +0200'>2013-05-10</span></td><td><a href='/guix/commit/TODO?id=8c247e1c473d478287ebf2829475259ba3ee7780'>Update `TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-04-12 17:31:05 +0200'>2013-04-12</span></td><td><a href='/guix/commit/TODO?id=9297c90b69ba2d1f504f8c63b92510806615847d'>Update `TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-03-27 00:11:57 +0100'>2013-03-27</span></td><td><a href='/guix/commit/TODO?id=da0a26d2a7df8b8f269aa05a7bd13add97df5658'>Update `TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-02-17 13:23:45 -0500'>2013-02-17</span></td><td><a href='/guix/commit/TODO?id=d8f257f99e0e3925b46898c1579ebfaaaad75094'>Update `TODO'.</a></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2013-01-28 07:16:11 +0000'>2013-01-28</span></td><td><a href='/guix/commit/TODO?id=2289721c9cf9e238982611235191ed9e691d326c'>Update 'TODO'.</a></td><td>Nikita Karetnikov</td></tr>
<tr><td><span title='2013-01-27 00:59:04 +0100'>2013-01-27</span></td><td><a href='/guix/commit/TODO?id=29767aaef67e78ca4ca80448725a4183146e463a'>Update `TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-01-18 16:59:02 +0100'>2013-01-18</span></td><td><a href='/guix/commit/TODO?id=5fc5c2f340c3bc7bc73428fbe1265a724203f668'>build: Bump to version 0.2.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-01-15 11:35:15 +0100'>2013-01-15</span></td><td><a href='/guix/commit/TODO?id=c7e4a72a748eee8b64e62a39428ce139ccf9c302'>Augment `TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2013-01-09 22:12:23 +0100'>2013-01-09</span></td><td><a href='/guix/commit/TODO?id=c0b3c89f16c2ba36da66a4259a271db449ee66ca'>Augment `TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2012-12-12 15:32:35 +0100'>2012-12-12</span></td><td><a href='/guix/commit/TODO?id=a9128eac414e56882a12571e4856873a19ff6ec3'>daemon: Use `openssl' from $PATH.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2012-12-09 14:44:17 +0100'>2012-12-09</span></td><td><a href='/guix/commit/TODO?id=2d34fa490299b099108889a4b2290244d8ed1a24'>Update `TODO'.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2012-12-04 22:04:03 +0100'>2012-12-04</span></td><td><a href='/guix/commit/TODO?id=3036a01ff7dbf618a0012cea8de85820962f7b8e'>Augment `TODO'.</a></td><td>Ludovic Courtès</td></tr>