Python 3.2 UnicodeEncodeError

I am trying to write some data pulled from some source code (using httplib2 and lxml.html), but whenever I try to write the data I get this error:

UnicodeEncodeError: 'charmap' codec can't encode character '\u开发者_C百科012b' in position 505: character maps to <undefined>

Throughout the whole program I can print the text just fine, but when I try to write to a file I get the error. For example, in the following code I can print defs just fine, but I get the above error when I try to write to a file.

print(defs)  #Good
f = open(loc+fname+'.txt', 'w')
f.write(defs)  #Bad
f.close()

How can I get this to write to the file?

Specify an encoding that can handle the character:

f = open(loc + fname + '.txt', 'w', encoding='utf-8')