我们知道文件包含字节，b'\x96'因为错误消息中已提到该字节：
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x96 in position 7386: invalid start byte
现在，我们可以编写一个小脚本来找出b'\x96'解码到的 编码是否存在ñ：
import pkgutil
import encodings
import os
def all_encodings():
modnames = set([modname for importer, modname, ispkg in pkgutil.walk_packages(
path=[os.path.dirname(encodings.__file__)], prefix='')])
aliases = set(encodings.aliases.aliases.values())
return modnames.union(aliases)
text = b'\x96'
for enc in all_encodings():
try:
msg = text.decode(enc)
except Exception:
continue
if msg == 'ñ':
print('Decoding {t} with {enc} is {m}'.format(t=text, enc=enc, m=msg))
产生
Decoding b'\x96' with mac_roman is ñ
Decoding b'\x96' with mac_farsi is ñ
Decoding b'\x96' with mac_croatian is ñ
Decoding b'\x96' with mac_arabic is ñ
Decoding b'\x96' with mac_romanian is ñ
Decoding b'\x96' with mac_iceland is ñ
Decoding b'\x96' with mac_turkish is ñ
因此，请尝试更改
with open('my_file.csv', 'r', newline='') as csvfile:
这些编码之一，例如：
with open('my_file.csv', 'r', encoding='mac_roman', newline='') as csvfile:
602392714
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