UnicodeDecodeError when using split_wiki

[albertvillanova]

On Windows, a UnicodeDecodeError is raised when using split_wiki:

----> 1 dest = split_wiki(path,lang)

~\projects\forks\course-nlp\nlputils.py in split_wiki(path, lang, encoding)
     46             if f: f.close()
     47             f = (dest/f'{title}.txt').open('w')
---> 48         else: f.write(l)
     49     f.close()
     50     return dest

~\AppData\Local\Continuum\anaconda3\envs\fastai-v1-py37\lib\encodings\cp1252.py in encode(self, input, final)
     17 class IncrementalEncoder(codecs.IncrementalEncoder):
     18     def encode(self, input, final=False):
---> 19         return codecs.charmap_encode(input,self.errors,encoding_table)[0]
     20
     21 class IncrementalDecoder(codecs.IncrementalDecoder):

UnicodeEncodeError: 'charmap' codec can't encode character '\u0103' in position 21: character maps to <undefined>