blame always fails

[trac@…]

I had blame support working in an earlier version, but since updating to Trac-0.11-py2.3.egg, I get the following error messsage whenever I try to view annotations:

HTML preview not available, since no preview renderer could handle it.
Try downloading the file instead.

The log shows this warning:

2008-07-28 16:37:52,924 Trac[api] WARNING: HTML preview
using <trac.mimeview.api.PlainTextRenderer object at 0xf69749ec>
failed (unsupported operand type(s) for %: 'Fragment' and 'tuple')

[ebray <hyugaricdeau@…>]

You probably need to upgrade Genshi to 0.5.

[anonymous]

No, that's not it:

easy_install -Z Genshi
Searching for Genshi
Best match: Genshi 0.5.1
Processing Genshi-0.5.1-py2.3-linux-i686.egg
Genshi 0.5.1 is already the active version in easy-install.pth

[ebray <hyugaricdeau@…>]

Sorry, you're right, I was confusing Fragment with Markup. Now I'm not sure.

[axcsrs@…]

I am having the same issue, although I don't have Blame installed. See attached for config.

[axcsrs@…]

Sorry, couldn't attach file, but here are the relevant bits:

System Information
Trac:  	0.11
Python: 	2.5.2 (r252:60911, Jul 31 2008, 17:44:49) [GCC 4.2.3 (Ubuntu 4.2.3-2ubuntu7)]
setuptools: 	0.6c8
SQLite: 	3.4.2
pysqlite: 	2.4.0
Genshi: 	0.5.1
mod_python: 	3.3.1
Subversion: 	1.4.6 (r28521)
jQuery:	1.2.3

components  	tractags.*  	enabled
tractoc.* 	enabled
tracvote.* 	enabled
tracvote.votesystem 	enabled
wikitopdf.* 	enabled

mimeviewer  	enscript_modes  	text/x-dylan:dylan:4
enscript_path 	enscript
max_preview_size 	262144
mime_map 	text/x-dylan:dylan,text/x-idl:ice,text/x-ada:ads:adb
php_path 	php
silvercity_modes 	
tab_width 	8

[axcsrs@…]

Solved for me - On Ubuntu 8.04, installing the php5-cli package was the trick.

[trac@…]

It looks like the php5-cli package mostly installs the commandline version of php at /usr/bin/php5. My distro already has /usr/bin/php, so I tried symlinking it to 'php5', but there's no difference.

One important thing to note: Due to my distro (CentOS 4.6), I'm stuck with svn 1.1.4. I tried installing 1.5.1 into /usr/local, but couldn't get Trac to use it. The About page still reports the old version. I don't want to install svn 1.5.1 into the standard location because it requires a newer version of APR and Apache than my distro includes.

More info from the log:

2008-08-29 16:42:20,632 Trac[api] WARNING: Can't use annotator 'blame': svn blame failed: 'module' object has no attribute 'svn_opt_revision_value_t'
2008-08-29 16:42:20,632 Trac[api] WARNING: HTML preview using <trac.mimeview.php.PHPRenderer object at 0xf69828cc> failed (unsupported operand type(s) for %: 'Fragment' and 'tuple')
Traceback (most recent call last):
  File "/usr/lib/python2.3/site-packages/Trac-0.11stable_r7496-py2.3.egg/trac/mimeview/api.py", line 655, in render
    m and Ranges(m))
  File "/usr/lib/python2.3/site-packages/Trac-0.11stable_r7496-py2.3.egg/trac/mimeview/api.py", line 695, in _render_source
    " annotator:") +
  File "/usr/lib/python2.3/site-packages/Trac-0.11stable_r7496-py2.3.egg/trac/web/chrome.py", line 116, in add_warning
    req.chrome['warnings'].append(msg % args)
TypeError: unsupported operand type(s) for %: 'Fragment' and 'tuple'

[Christian Boos]

add_warning and add_notice didn't support Genshi Fragment arguments, contrary to the expectations of Mimeview._render_source.

[Christian Boos]

Fixed in [7595].