如何将阿拉伯文字从PyQt4转换为UTF-8 [英] How to convert Arabic text from PyQt4 to UTF-8

问题描述

我用PyQt4制作了一个Python 2 GUI应用程序，它有两个条目.第一个使用文件名，第二个使用文本写入文件.

I made a Python 2 GUI application with PyQt4 that has two entries. The first takes the file name, and the second takes the text to write in the file.

我想在两者中都输入阿拉伯文字，所以我写了这个函数:

I want to enter Arabic text in both of them, so I wrote this function:

def makefile(self):
    self.name_file=str(self.lineEdit.text()).decode("utf-8")
    self.string=str(self.lineEdit_2.text()).decode("utf-8")
    file=open(self.name_file,"w")
    file.write(self.string)
    file.close()

当我输入英文字母时，它可以正常工作，但是当我输入阿拉伯文时，出现以下错误:

When I enter English letters it works fine, but when I enter Arabic I get the following error:

UnicodeEncodeError:'ascii'编解码器无法对位置0-2处的字符进行编码:序数不在范围(128)中

UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-2: ordinal not in range(128)

推荐答案

您不是编写将Unicode转换为UTF-8的代码，而是编写了将UTF-8转换为Unicode的代码.这就是您遇到的错误.

Instead of writing code to convert from your unicode to UTF-8, you wrote code to convert from UTF-8 to unicode. That's what you're getting errors.

decode("utf-8")表示

采用UTF-8编码的二进制str并转换为unicode字符串.

Take a UTF-8 encoded binary str and convert to a unicode string.

相反，encode("utf-8")表示

取一个unicode字符串，并使用UTF-8编码为二进制str.

take a unicode string and encode into a binary str using UTF-8.

您似乎正在尝试将文本编码为UTF-8，因此可以使用UTF-8编码将其写入文件.因此，您应该使用encode()而不是decode().

It looks like you're trying to encode text as UTF-8, so you can write it to your file in UTF-8 encoding. So you should use be using encode() instead of decode().

此外，您要获取Unicode中的QString值，并在其上调用str().这会尝试使用ASCII将其更改为二进制str，这不适用于您的阿拉伯文本，并会导致您所看到的异常.无论如何，这不是您想做的—您想使用UTF-8，而不是ASCII.因此，请勿将其转换为二进制str，而应使用unicode()将其转换为unicode对象.

Also, you're taking your QString value, which is in unicode, and calling str() on it. This attempts to change it to a binary str using ASCII, which doesn't work for your Arabic text, and causes the exception you're seeing. And it's not what you wanted to do, anyway—you wanted to use UTF-8, not ASCII. So don't convert it to a binary str, convert it to a unicode object with unicode().

因此，例如，代替

str(self.lineEdit_2.text()).decode("utf-8")

您应该改写

unicode(self.lineEdit_2.text()).encode("utf-8")

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