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From: Peter Otten <__peter__@web.de>
Subject: Re: UnicodeEncodeError when not running script from IDE
Date: Tue, 12 Feb 2013 16:48:55 +0100
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Xref: csiph.com comp.lang.python:38764

Magnus Pettersson wrote:

>> io.open() uses UTF-8 by default, but you can specify other encodings with
>> 
>> io.open(filepath, mode, encoding=whatever).
> 
> 
> Interesting. Pydev must be doing something behind the scenes because when
> i changed open() to io.open() i get error inside of eclipse now:
> 
> f.write(card+"\n")
>   File "C:\python27\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 u'\u53c8' in
> position 32: character maps to <undefined>
> 
> ....
> 
> io.open(filepath, "a", encoding="UTF-8") as f:
> 
> Then it works in eclipse. But I seem to be having an encoding problem all
> over the place that works in eclipse but dosnt work outside of eclipse
> pydev.

No, I was wrong about the default; it is actually 
locale.getpreferredencoding(). Sorry for the confusion.