test_to_csv_unicode fails on python 3.1, 3.2 windows
# 
## ERROR: test_to_csv_unicode (pandas.tests.test_frame.TestDataFrame)

Traceback (most recent call last):
  File "c:\python32\lib\site-packages\pandas-0.7.0.dev-py3.2-win-amd64.egg\panda
s\tests\test_frame.py", line 2488, in test_to_csv_unicode
    df.to_csv(path, encoding='UTF-8')
  File "c:\python32\lib\site-packages\pandas-0.7.0.dev-py3.2-win-amd64.egg\panda
s\core\frame.py", line 914, in to_csv
    csvout.writerow(encoded_labels + encoded_cols)
  File "c:\python32\lib\encodings\cp1252.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode character '\u03c3' in position
8: character maps to <undefined>
