requests.Session() how do you set 'replace' on the encoding?

[Veek M]

I'm getting a Unicode error:

Traceback (most recent call last):
  File "fooxxx.py", line 56, in <module>
    parent = anchor.getparent()
UnicodeEncodeError: 'gbk' codec can't encode character u'\xa0' in position 
8: illegal multibyte sequence

I'm doing:
s = requests.Session()
to suck data in, so.. how do i 'replace' chars that fit gbk
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