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Re: Wait... WHAT?

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Date Thu, 13 Feb 2014 12:10:22 +1100
Subject Re: Wait... WHAT?
From Chris Angelico <rosuav@gmail.com>
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On Thu, Feb 13, 2014 at 11:44 AM, Tim Chase
<python.list@tim.thechases.com> wrote:
> Yep:
>
>>>> s = "\u3141" # HANGUL LETTER MIEUM
>>>> f = open('test.txt', 'w')
>>>> f.write("\u3141")
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
> UnicodeEncodeError: 'ascii' codec can't encode character '\u3141' in
> position 0: ordinal not in range(128)
>
> Just because the open() call hides the specification of how Python
> should do that encoding doesn't prevent the required encoding from
> happening. :-)
>

All it's hiding is what the default encoding is.

Python 3.4.0rc1+ (default:2ba583191550, Feb 12 2014, 10:30:57)
[GCC 4.7.2] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> f = open('test.txt', 'w')
>>> f.write("\u3141")
1

Python 3.4.0b2 (v3.4.0b2:ba32913eb13e, Jan  5 2014, 16:23:43) [MSC
v.1600 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> f = open('test.txt', 'w')
>>> f.write("\u3141")
Traceback (most recent call last):
  File "<pyshell#1>", line 1, in <module>
    f.write("\u3141")
  File "C:\Python34\lib\encodings\cp1252.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode character '\u3141' in
position 0: character maps to <undefined>
>>> f = open('test.txt', 'w', encoding='utf-8')
>>> f.write("\u3141")
1

Be explicit, and you can store Unicode strings reliably. That said,
though, you still can't store lists.

ChrisA

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Wait... WHAT? eneskristo@gmail.com - 2014-02-12 11:43 -0800
  Re: Wait... WHAT? Ian Kelly <ian.g.kelly@gmail.com> - 2014-02-12 13:13 -0700
  Re: Wait... WHAT? eneskristo@gmail.com - 2014-02-12 12:21 -0800
    Re: Wait... WHAT? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-02-12 20:38 +0000
    Re: Wait... WHAT? Ian Kelly <ian.g.kelly@gmail.com> - 2014-02-12 14:35 -0700
    Re: Wait... WHAT? Michael Torrie <torriem@gmail.com> - 2014-02-12 14:39 -0700
    Re: Wait... WHAT? Tim Chase <python.list@tim.thechases.com> - 2014-02-12 16:14 -0600
    Re: Wait... WHAT? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-02-12 23:36 +0000
    Re: Wait... WHAT? Ian Kelly <ian.g.kelly@gmail.com> - 2014-02-12 17:01 -0700
    Re: Wait... WHAT? Tim Chase <python.list@tim.thechases.com> - 2014-02-12 18:44 -0600
    Re: Wait... WHAT? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-02-13 00:59 +0000
    Re: Wait... WHAT? Chris Angelico <rosuav@gmail.com> - 2014-02-13 12:10 +1100
    Re: Wait... WHAT? Tim Chase <python.list@tim.thechases.com> - 2014-02-12 21:29 -0600
    Re: Wait... WHAT? Chris Angelico <rosuav@gmail.com> - 2014-02-13 14:47 +1100
      Re: Wait... WHAT? eneskristo@gmail.com - 2014-02-13 09:46 -0800
        Re: Wait... WHAT? MRAB <python@mrabarnett.plus.com> - 2014-02-13 18:25 +0000
        Re: Wait... WHAT? Michael Torrie <torriem@gmail.com> - 2014-02-13 15:22 -0700
  Re: Wait... WHAT? eneskristo@gmail.com - 2014-02-12 12:43 -0800
    Re: Wait... WHAT? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-02-12 20:56 +0000
      Re: Wait... WHAT? eneskristo@gmail.com - 2014-02-12 12:59 -0800
        Re: Wait... WHAT? Chris Angelico <rosuav@gmail.com> - 2014-02-13 08:17 +1100
        Re: Wait... WHAT? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-02-12 21:23 +0000
    Re: Wait... WHAT? Grant Edwards <invalid@invalid.invalid> - 2014-02-12 23:09 +0000

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