Extending built-in language (Win 95)

Martin von Loewis loewis at informatik.hu-berlin.de
Mon Apr 10 15:33:02 CEST 2000


Mark Pope <M_Pope at shef.rage.co.uk> writes:

> I would like to extend the objects available in python, however It is not
> appropriate to build normal extension dll's.

Why is it not appropriate? It works perfectly well to add new types in
an extension module. Many extensions do.

> Appears to be a template for defining new built in objects which will be
> compiled into the Python static lib. However there must be other steps to
> making the new object reachable from python script.

The new type becomes only available by means of creation of
values. Look at the file type. Do you write

f = file('foo.txt','w')

? No, you use open() instead, which just returns an instance of a file
object. In the xxmodule, xx_new is used to make new instances, which
can be called from Python as xx.new().

Hope this helps,
Martin



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