Python中的UTF-8字符串解码

Question

In a project I need a PHP and a Python module (Python 3.5.2). As well as a configfile which both modules use. The Python configparser has problems reading special characters from the configfile, like german mutated vowel (ä,ö,ü, eg). From the PHP side I use the utf-8 encoding to bypass the problem:

    utf8_encode ("Köln") //result: Köln

From the Python side I tried the decode function:

    "Köln".decode("utf-8", "strict")

I expected the result "Köln" but just got the result "Köln" again. What do I have do to do to decode my String?

Answer 1

Try these lines added on the top of your document:

# -*- coding: latin-1 -*-
# Encoding schema https://www.python.org/dev/peps/pep-0263

This may help you, more documentation here

Answer 2

在这种情况下，您应该在.py文件的第一行中添加#-*- coding: UTF-8 -*- 。

Answer 3

In Python3, all text is in unicode. So I would recommend, on your PHP side, converting the string to unicode (outputting as u'K\\xf6ln'). After you've done this, you can convert it back to (sort of) it's original form in Python, however, the mutated vowel will be destroyed.

import unicodedata

unicodetext = u'K\xf6ln'
output = unicodedata.normalize('NFKD', unicodetext).encode('ascii', 'ignore')

This will output a lonesome Koln, without the rather pretty mutation. From my research, I can't find any way around this, but please, anybody who finds a more apt solution please comment

Answer 4

Thanks for all the helpfull answers and comments. I finally ended up with the following solution:

On the PHP side I encode my string with the following command:

$str = "path/to/file/Köln.jpg";
json_encode ($str, JSON_UNESCAPED_SLASHES);

The result is the string "path/to/file/K\öln.jpg" which is then stored in my config file. The Python module uses ConfigParser to read the file. The encoded string is then decoded with the following command:

str.encode('utf8').decode('utf8')

The result is again "path/to/file/Köln.jpg".