UnicodeEncodeError: 'ascii' codec can't encode characters in position 5-8: ordinal not in range(128)

[amas]

How to Reproduce

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

(please provide additional details here)

Request parameters:

{}

User agent: Mozilla/5.0 (X11; U; Linux i686; en-US) AppleWebKit/534.7 (KHTML, like Gecko) Chrome/7.0.517.43 Safari/534.7

System Information

Trac	0.12.2
Babel	0.9.5
Docutils	0.7
FullBlog	0.1.1-r9430
Genshi	0.6
GIT	1.7.3.2
mod_wsgi	3.3 (WSGIProcessGroup WSGIApplicationGroup %{GLOBAL})
Pygments	1.3.1dev-20101221
pysqlite	2.6.0
Python	2.7.1 (r271:86832, Apr 15 2011, 12:11:58) [GCC 4.5.2 20110127 (prerelease)]
RPC	1.1.0-r9395
setuptools	0.6c11
SQLite	3.7.3
Subversion	1.6.9 (r901367)
jQuery	1.4.2

Enabled Plugins

BreadCrumbsNavPlugin	0.1
CodeExample	1.0
FlatTableProcessor	N/A
FootNoteMacro	1.03
graphviz	0.7.5
PlantUML	1.2
TracAccountManager	0.2.1dev-r7737
TracAcronyms	0.1
TracFullBlogPlugin	0.1.1-r9430
TracGit	0.12.0.5dev
TracHTTPAuth	1.1
TracIncludeMacro	2.1-r10462
TracMath	0.1
TracNewsFlash	1.0.1
TracScreenshots	0.8dev
TracSectionEditPlugin	0.1
TracTags	0.6
TracTocMacro	11.0.0.3
TracXMLRPC	1.1.0-r9395
VisitCounter	0.2

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/trac/web/main.py", line 511, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.7/site-packages/trac/web/main.py", line 237, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/lib/python2.7/site-packages/trac/timeline/web_ui.py", line 213, in process_request
    format='rss')
  File "/usr/lib/python2.7/site-packages/trac/web/href.py", line 181, in <lambda>
    self._derived[name] = lambda *args, **kw: self(name, *args, **kw)
  File "/usr/lib/python2.7/site-packages/trac/web/href.py", line 175, in __call__
    href += '?' + unicode_urlencode(params, self.query_safe)
  File "/usr/lib/python2.7/site-packages/trac/util/text.py", line 118, in unicode_urlencode
    k = quote_plus(str(k), safe)
UnicodeEncodeError: 'ascii' codec can't encode characters in position 5-8: ordinal not in range(128)

[Remy Blank]

Can you please check if this still happens with all plugins disabled?

[Christian Boos]

It must be a duplicate of #10121.