如何替换非ASCII字符

Question

I have a string in the form email [ à ] example.com 我有一个email [ à ] example.com格式为email [ à ] example.com的字符串

I want to make it email@example.com . 我想将其设置为email@example.com 。

I tried : 我试过了：

print email.replace(u"\xa0", "@")
print email.replace(" [ à ] ", "@")
print email.replace(" à ", "@")
email = email.replace(u" à ", "@")

but I always get this error: 但我总是得到这个错误：

'ascii' codec can't decode byte 0xc3 in position 3: ordinal not in range(128) 'ascii'编解码器无法解码位置3的字节0xc3：序数不在范围内（128）

Answer 1

It works if you use the unicode type for both the string and replacement: 如果您将unicode类型用于字符串和替换，则可以使用：

>>> email = u"email [ à ] domain.fr"
>>> email.replace(u" [ à ] ", u"@")
u'email@domain.fr'

To get a unicode object out of str use .decode() : 要从str获取unicode对象，请使用.decode() ：

email.decode("utf-8")  # or provide another encoding

Answer 2

Alternatively, if you don't want to use unicode strings, use: 另外，如果您不想使用unicode字符串，请使用：

In [8]: email = 'email [ à ] domain.fr'

In [9]: email.replace(' [ \xc3\xa0 ] ', '@')
Out[9]: 'email@domain.fr'