Unicode error handling with Python 3's readlines()
I keep getting this error while reading a text file. Is it possible to handle/ignore it and proceed?
UnicodeEncodeError: ‘charmap’ codec can’t decode byte 0x81 in position 7827: character maps to undefined.
In Python 3, pass an appropriate errors= value (such as errors=ignore or errors=replace) on creating your file object (presuming it to be a subclass of io.TextIOWrapper -- and if it isn't, consider wrapping it in one!); also, consider passing a more likely encoding than charmap (when you aren't sure, utf-8 is always a good place to start).
f = open('misc-notes.txt', encoding='utf-8', errors='ignore')
In Python 2, the read() operation simply returns bytes; the trick, then, is decoding them to get them into a string (if you do, in fact, want characters as opposed to bytes). If you don't have a better guess for their real encoding:
...to replace unhandled characters, or
to simply ignore them.
That said, finding and using their real encoding (rather than guessing utf-8) would be preferred.
You should open the file with a codecs to make sure that the file gets interpreted as UTF8.
import codecs fd = codecs.open(filename,'r',encoding='utf-8') data = fd.read()
Yeah..you could wrap it in a
try: .... except UnicodeEncodeError: pass