DistributionNotFound: MarkupSafe>=0.9.2

[puls]

How to Reproduce

While doing a GET operation on /changeset, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{'new': u'46', 'new_path': u'/', 'old': u'40', 'old_path': u'/'}

User agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0

System Information

Trac	1.0
Babel	0.9.6 (translations unavailable)
Genshi	0.6 (without speedups)
Pygments	1.5
pysqlite	2.6.0
Python	2.7.2 (default, Aug 19 2011, 20:41:43) [GCC]
setuptools	0.6
SQLite	3.7.8
Subversion	1.6.19 (r1383947)
jQuery	1.7.2

Enabled Plugins

Python Traceback

Traceback (most recent call last):
  File "/usr/local/lib/python2.7/site-packages/trac/web/main.py", line 497, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/local/lib/python2.7/site-packages/trac/web/main.py", line 214, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/local/lib/python2.7/site-packages/trac/versioncontrol/web_ui/changeset.py", line 353, in process_request
    self._render_html(req, repos, chgset, restricted, xhr, data)
  File "/usr/local/lib/python2.7/site-packages/trac/versioncontrol/web_ui/changeset.py", line 619, in _render_html
    diffs = _content_changes(old_node, new_node)
  File "/usr/local/lib/python2.7/site-packages/trac/versioncontrol/web_ui/changeset.py", line 548, in _content_changes
    if mview.is_binary(old_node.content_type, old_node.path):
  File "/usr/local/lib/python2.7/site-packages/trac/mimeview/api.py", line 950, in is_binary
    mimetype = self.get_mimetype(filename, content)
  File "/usr/local/lib/python2.7/site-packages/trac/mimeview/api.py", line 922, in get_mimetype
    mimetype = get_mimetype(filename, content, self.mime_map,
  File "/usr/local/lib/python2.7/site-packages/trac/mimeview/api.py", line 900, in mime_map
    for mimetype, kwds in renderer.get_extra_mimetypes() or []:
  File "/usr/local/lib/python2.7/site-packages/trac/mimeview/pygments.py", line 100, in get_extra_mimetypes
    for lexname, aliases, _, mimetypes in get_all_lexers():
  File "/usr/local/lib/python2.7/site-packages/pygments/lexers/__init__.py", line 45, in get_all_lexers
    for lexer in find_plugin_lexers():
  File "/usr/local/lib/python2.7/site-packages/pygments/plugin.py", line 53, in find_plugin_lexers
    yield entrypoint.load()
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 1990, in load
    if require: self.require(env, installer)
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2003, in require
    working_set.resolve(self.dist.requires(self.extras),env,installer))
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 584, in resolve
    raise DistributionNotFound(req)
DistributionNotFound: MarkupSafe>=0.9.2

[Christian Boos]

Interesting. So Pygments has plugins as well. What was the extension you used for triggering this? Did the problem happen just with the normal Trac and Pygments installation, or did you have to configure/install something else (like some Pygments extensions)?

[Christian Boos]

No feedback, closing.

As nobody else had this issue, I suppose this was not a generic Pygments 1.5 installation. To be sure, I just upgraded from 1.4, and Pygments 1.6rc1 works fine for me.