[IronPython] Silverlight: UnicodeEncodeError not defined and other encoding issues

Dino Viehland dinov at microsoft.com
Mon Mar 8 19:23:01 CET 2010

Silverlight (at the CLR level) only includes UTF8 - no other encodings are
available.  That's the reason why latin_1 isn't available (which makes sense)
and basically the reason why UnicodeEncodeError isn't available (which makes
less sense as I think we're just missing the .NET exception to map it onto).

We could certainly fix the missing UnicodeEncodeError but for latin-1 
you could probably publish your own latin_1_encode method into the
codecs module.

> -----Original Message-----
> From: users-bounces at lists.ironpython.com [mailto:users-
> bounces at lists.ironpython.com] On Behalf Of Michael Foord
> Sent: Monday, March 08, 2010 4:32 AM
> To: Discussion of IronPython
> Subject: [IronPython] Silverlight: UnicodeEncodeError not defined and other
> encoding issues
> Hey all,
> Using Silverlight 2.6.1 RC:
> NameError: global name UnicodeEncodeError is not defined
> Oops (and a problem for us).
> Also: 'some string'.encode('latin-1') results in:
>      LookupError: unknown encoding: latin-1
> If I then add the codecs and encodings standard library modules to our
> application I get the following exception:
>      AttributeError: 'module' object has no attribute 'latin_1_encode'
> The error is in line 17 of the encodings/latin_1.py module:
>      encode = codecs.latin_1_encode
> This unfortunately kills a fair bit of Python code and means I'm going
> to have to rewrite a chunk of the library we're using. :-(
> Thanks
> Michael Foord
> --
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