"decoding str is not supported" when building site

Just installed tags and got a couple of errors while trying to build a site. I got the errors after using tags new then tags build - none of my own code.

Software versions

• brace-tags 1.0.10
• OS X 10.9.4
• Python 3.4.1
• pip 1.5.6 (tags was installed using this)
• Edit: pyparsing 2.0.1 (no luck with 2.0.2 either)

The issue

~: mkdir tags
~: cd tags
tags: tags new
Creating new site in '.'.
tags: tags build
Building site from '.' into '_site'
Parse Error while compiling about.html: decoding str is not supported
{% include _partials/header.html %}
^
Parse Error while compiling index.html: decoding str is not supported
{% include _partials/header.html %}
^

Edit: I've been investigating myself, here's a kind of stack trace
1: generator.py, line 28
2: tags.py, line 63
3: templatelang.py, line 227

[kdef]

Also seeing this on Fedora with Python 3.3.2

[franciscoandres]

There's no solution yet? I have the same problem. :(

Nope, not even an acknowledgement. :(

[colevscode]

Do you see this problem with python 2.7?

I do not see this problem when using python 2.7.6.