Illegal character in URL - possible bug in pyramid 1.3a7

[Zoltan Benedek]

Illegal character in URL -> "Internal system error",
"UnicodeDecodeError"

The error can be reproduced. Might be the bug is in WebOb, but I
cannot investigate deeper. May be there is a solution to avoid the
system break.

When I type the URL: "http://localhost:6543/La%C3" - it seems that
"%C3" is an illegal character and I get:
"Internal Server Error

The server encountered an unexpected internal server error

(generated by waitress)"

and:
"/home/pyramid/prj1/MyProject$ /py27/bin/pserve development.ini
Starting server in PID 2121.
serving on http://0.0.0.0:6543
2012-02-11 19:27:28,661 ERROR [waitress][Dummy-4] Exception when
serving /La�
Traceback (most recent call last):
File "/py27/lib/python2.7/site-packages/waitress-0.8-py2.7.egg/
waitress/channel.py", line 325, in service
task.service()
File "/py27/lib/python2.7/site-packages/waitress-0.8-py2.7.egg/
waitress/task.py", line 173, in service
self.execute()
File "/py27/lib/python2.7/site-packages/waitress-0.8-py2.7.egg/
waitress/task.py", line 380, in execute
appiter = self.channel.server.application(env, start_response)
File "/py27/lib/python2.7/site-packages/pyramid-1.3a7-py2.7.egg/
pyramid/router.py", line 187, in call
response = self.handle_request(request)
File "/py27/lib/python2.7/site-packages/pyramid_debugtoolbar-0.9.8-
py2.7.egg/pyramid_debugtoolbar/toolbar.py", line 103, in toolbar_tween
if (request.path.startswith(root_path) or (not remote_addr in hosts)):
File "/py27/lib/python2.7/site-packages/WebOb-1.2b3-py2.7.egg/webob/
request.py", line 482, in path
bpath = bytes(self.path_info, self.url_encoding)
File "/py27/lib/python2.7/site-packages/WebOb-1.2b3-py2.7.egg/webob/
descriptors.py", line 68, in fget
return req.encget(key, encattr=encattr)
File "/py27/lib/python2.7/site-packages/WebOb-1.2b3-py2.7.egg/webob/
request.py", line 174, in encget
return val.decode(encoding)
File "/py27/lib/python2.7/encodings/utf_8.py", line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xc3 in position 3:
unexpected end of data"

I tried to open an issue on github, but appears only for me.

[Chris McDonough]

I commented on the issue in Github here:
https://github.com/Pylons/pyramid/issues/434#issuecomment-3922280