在 Python 源代码中使用 UTF-8 编码 [英] Working with UTF-8 encoding in Python source

问题描述

考虑:

$ cat bla.py 
u = unicode('d…')
s = u.encode('utf-8')
print s
$ python bla.py 
  File "bla.py", line 1
SyntaxError: Non-ASCII character 'xe2' in file bla.py on line 1, but no encoding declared; see http://www.python.org/peps/pep-0263.html for details

如何在源代码中声明 UTF-8 字符串?

How can I declare UTF-8 strings in source code?

推荐答案

在源头中你可以声明:

#!/usr/bin/env python
# -*- coding: utf-8 -*-
....

它在 PEP 0263 中有描述:

然后你可以在字符串中使用 UTF-8:

Then you can use UTF-8 in strings:

#!/usr/bin/env python
# -*- coding: utf-8 -*-

u = 'idzie wąż wąską dróżką'
uu = u.decode('utf8')
s = uu.encode('cp1250')
print(s)

Python 3 中不需要此声明，因为 UTF-8 是默认源编码(请参阅 PEP 3120).

This declaration is not needed in Python 3 as UTF-8 is the default source encoding (see PEP 3120).

此外，验证您的文本编辑器是否以 UTF-8 正确编码您的代码可能是值得的.否则，您可能会有不被解释为 UTF-8 的不可见字符.

In addition, it may be worth verifying that your text editor properly encodes your code in UTF-8. Otherwise, you may have invisible characters that are not interpreted as UTF-8.

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