How To Decode A Non Unicode Character In Python?
I have a string say s = 'Chocolate Moelleux-M\xe8re' When i am doing: In [14]: unicode(s) --------------------------------------------------------------------------- UnicodeDecode
Solution 1:
I have had to face this problem one too many times. The problem that I had contained strings in different encoding schemes. So I wrote a method to decode a string heuristically based on certain features of different encodings.
defdecode_heuristically(string, enc = None, denc = sys.getdefaultencoding()):
"""
Try to interpret 'string' using several possible encodings.
@input : string, encode type.
@output: a list [decoded_string, flag_decoded, encoding]
"""ifisinstance(string, unicode): return string, 0, "utf-8"try:
new_string = unicode(string, "ascii")
return string, 0, "ascii"except UnicodeError:
encodings = ["utf-8","iso-8859-1","cp1252","iso-8859-15"]
if denc != "ascii": encodings.insert(0, denc)
if enc: encodings.insert(0, enc)
for enc in encodings:
if (enc in ("iso-8859-15", "iso-8859-1") and
re.search(r"[\x80-\x9f]", string) isnotNone):
continueif (enc in ("iso-8859-1", "cp1252") and
re.search(r"[\xa4\xa6\xa8\xb4\xb8\xbc-\xbe]", string)\
isnotNone):
continuetry:
new_string = unicode(string, enc)
except UnicodeError:
passelse:
if new_string.encode(enc) == string:
return new_string, 0, enc
# If unable to decode,doing force decoding i.e.neglecting those chars.
output = [(unicode(string, enc, "ignore"), enc) for enc in encodings]
output = [(len(new_string[0]), new_string) for new_string in output]
output.sort()
new_string, enc = output[-1][1]
return new_string, 1, enc
To add to this this link gives a good feedback on why encoding etc - Why we need sys.setdefaultencoging in py script
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