替换Python中的nonASCII字符：例如，“vs.”

Question

我不想把you’ll还原成you ll（不是youll）。这就是我要做的：

>>> clean = "you'll"
>>> import string
>>> clean = filter(lambda x: x in string.printable, clean)
>>> print clean
you'll

>>> clean = "you’ll" 
>>> clean = filter(lambda x: x in string.printable, clean)
>>> print clean
youll

这就是我所尝试的：

^{pr2}$

这很好，但是当我把它写进我的剧本里时：

SyntaxError: Non-ASCII character '\xe2' in file sc.py on line 177, but no encoding declared; see http://www.python.org/peps/pep-0263.html for details

所以，我在剧本的最上面加了一句：

# -*- coding: utf-8 -*- 

但是得到

clean =clean.replace('’',' ')
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 0: ordinal not in range(128)

我有点没主意了。在

Answer 1

这可能不是最好的答案，但一个简单的解决方案是只处理异常：

clean2 = ""
for ch in clean:
    try:
        clean2 += " " if ch == "'" else clean2 += ch
    except UnicodeDecodeError:
        clean2 += 'vs.'