Convert a list with wrong encoding to utf8
torriem at gmail.com
Thu Feb 14 15:41:51 EST 2019
On 02/14/2019 12:02 PM, vergos.nikolas at gmail.com wrote:
> Τη Πέμπτη, 14 Φεβρουαρίου 2019 - 8:16:40 μ.μ. UTC+2, ο χρήστης Calvin Spealman έγραψε:
>> If you see something like this
>> then you don't have a string, you have raw bytes. You don't "encode" bytes,
>> you decode them. If you know this is already encoded as UTF-8 then you just
>> need the decode('utf8') part and *not* the encode('latin1') step.
>> encode() is something that turns text into bytes
>> decode() is something that turns bytes into text
>> So, if you already have bytes and you need text, you should only want to be
>> doing a decode() and you just need to specific the correct encoding.
> I Agree but I don't know in what encoding the string is encoded into.
> I just tried
> names = tuple( [s.decode('utf8') for s in names] )
> but i get the error of:
> AttributeError("'str' object has no attribute 'decode'",)
Strictly speaking, that's correct. A Python 3 string object is already
decoded unicode. It cannot be decoded again.
> but why it says s is a string object? Since we have names in raw bytes is should be a bytes object?
It's clearly not raw bytes.
> How can i turn names from raw bytes to utf-8 strings?
They apparently aren't raw bytes. If they were, you could use .decode()
> ps. Who encoded them in raw bytes anyways? Since they fetced directly from the database shouldn't
> python3 have them stored in names as utf-8 strings? why raw bytes instead?
Something very strange is going on with your database and/or your
queries. The pymysql api should be already decoding the utf-8 bytes for
you and returning a unicode string. I have no idea why you're getting a
unicode string that consists of code points that are the same as the
utf-8 bytes. You'll have to post a little bit more of your code, like
a simple, complete query example (a few lines of code) that shows
absolutely everything you're trying to do to the string. Also you will
want to use the mysql command-line utilities to try your queries and see
what kind of data you're getting out. Because if mysql is told to use
utf-8 for varchar, and if you're inserting the data using
correctly-formed utf-8 encoded byte strings, it should come back out in
Python as unicode.
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