UnicodeDecodeError on the platform name with Python 2

[bochecha]

I just created a new Pyramid project on Fedora 19, with Python 2.7.4

Starting the app, I get the below traceback (last few lines because it is very long) :

Traceback (most recent call last):
  File "/home/bochecha/Workspace/loopapp/venv/lib/python2.7/site-packages/pyramid-1.4.1-py2.7.egg/pyramid/mako_templating.py", line 207, in __call__
    result = template.render_unicode(**system)
  File "/home/bochecha/Workspace/loopapp/venv/lib/python2.7/site-packages/Mako-0.8.0-py2.7.egg/mako/template.py", line 452, in render_unicode
    as_unicode=True)
  File "/home/bochecha/Workspace/loopapp/venv/lib/python2.7/site-packages/Mako-0.8.0-py2.7.egg/mako/runtime.py", line 783, in _render
    **_kwargs_for_callable(callable_, data))
  File "/home/bochecha/Workspace/loopapp/venv/lib/python2.7/site-packages/Mako-0.8.0-py2.7.egg/mako/runtime.py", line 815, in _render_context
    _exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
  File "/home/bochecha/Workspace/loopapp/venv/lib/python2.7/site-packages/Mako-0.8.0-py2.7.egg/mako/runtime.py", line 841, in _exec_template
    callable_(context, *args, **kwargs)
  File "/home/bochecha/Workspace/loopapp/venv/lib/python2.7/site-packages/pyramid_debugtoolbar-1.0.6-py2.7.egg/pyramid_debugtoolbar/panels/templates/versions.dbtmako", line 2, in render_body
    <div>${platform}</div>
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 152: ordinal not in range(128)

The problem is that Fedora 19 is codenamed « Schrödinger’s Cat ».

Python 2.7 sees that as:

$ python
Python 2.7.4 (default, Apr 22 2013, 07:21:08) 
[GCC 4.8.0 20130412 (Red Hat 4.8.0-2)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import platform
>>> platform.platform()
'Linux-3.9.0-0.rc7.git3.1.fc19.x86_64-x86_64-with-fedora-19-Schr\xc3\xb6dinger\xe2\x80\x99s_Cat'

And so the platform variable passed to the Mako template is a bytes string containing non-ascii chars, which causes the UnicodeDecodeError exception.

Editing pyramid_debugtoolbar/panels/versions.py to add a simple .decode('utf-8') where appropriate fixes the issue.

That might not be the proper fix though.

Finally, note that the problem is limited to Python 2, because Python 3 returns a unicode string:

$ python3
Python 3.3.1 (default, Apr 11 2013, 09:14:58) 
[GCC 4.8.0 20130322 (Red Hat 4.8.0-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import platform
>>> platform.platform()
'Linux-3.9.0-0.rc7.git3.1.fc19.x86_64-x86_64-with-fedora-19-Schrödinger’s_Cat'

[hanula]

Should be fixed in #98.

[sontek]

@bochecha Can you test with latest master and let us know if you are still seeing the issue?

[bochecha]

This is indeed fixed in latest master.

Thanks! :)