[Zope] *Error Type: UnicodeDecodeError*

[Gre7g Luterman]

I'm not familiar with the function mescat, but have you tried:

data=request.SESSION.get('data')
items=len(data[0]['head'])
for j in range(items):
    print container.mescat(u'city: ') + data[0]['head'][j][5]
return printed

It might prefer the input string to be unicode.

Gre7g