[Python-Dev] PEP 293, Codec Error Handling Callbacks

M.-A. Lemburg mal@lemburg.com
Mon, 05 Aug 2002 17:27:05 +0200

Oren Tirosh wrote:
> Here's another implementation strategy:
 > [hacking charmap codec]
> Tying it all together:
> A codec that does both charmap and entity reference translations may be 
> dynamically generated.  A function will be registered that intercepts 
> any codec name that looks like 'xmlcharref.CODECNAME', import that codec, 
> create patched charmaps and return the (enc, dec, reader, writer) tuple.
> The dynamically created entry will be cached for later use. 

Even though that's possible, why add more magic to the codec registry ?
u.encode('latin-1', 'xmlcharrefreplace') looks much clearer to me.

You are of course free to write a codec which implements this
directly. No change to the core is needed for that.

However, PEP 293 addresses a much wider application space than
just escaping unmappable characters.

Marc-Andre Lemburg
CEO eGenix.com Software GmbH
eGenix.com -- Makers of the Python mx Extensions: mxDateTime,mxODBC,...
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