Call to Markup() with non-breaking space raises exception

[ddorothy@…]

When calling Markup(content) where "content" contains non-breaking spaces (i.e.  ), I get the following fatal exception:

UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 664: ordinal not in range(128)

I'm calling Markup() inside a master template, like this:

${Markup(content)}

[cmlenz]

Please see Why does Genshi raise a UnicodeDecodeError when I try to render non-ASCII strings? in the FAQ.