[RELEASED] Python 3.1 final

[Benjamin Peterson]

Nobody <nobody <at> nowhere.com> writes:

> 
> On Sun, 28 Jun 2009 19:21:49 +0000, Benjamin Peterson wrote:
> 
> >> Yes, but do you get back the original byte strings?  Maybe I'm missing
> >> something, but my impression is that this is still an issue for the email
> >> module as well as command-line arguments and environment variables.
> > 
> > The email module is, yes, broken. You can recover the bytestrings of
> > command-line arguments and environment variables.
> 
> 1. Does Python offer any assistance in doing so, or do you have to
> manually convert the surrogates which are generated for unrecognised bytes?

fs_encoding = sys.getfilesystemencoding()
bytes_argv = [arg.encode(fs_encoding, "surrogateescape") for arg in sys.argv]

> 
> 2. How do you do this for non-invertible encodings (e.g. ISO-2022)?

What's a non-invertible encoding? I can't find a reference to the term.