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authorGuido van Rossum <guido@python.org>1997-09-11 23:01:04 (GMT)
committerGuido van Rossum <guido@python.org>1997-09-11 23:01:04 (GMT)
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tree0373eba0aeb422500aed02d1d2318101b6d71748 /Demo
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Added hint to skip the heavy stuff on first reading.
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@@ -25,6 +25,15 @@ Beaudry <i>hack</i>,'' but that's a misnomer. There's nothing hackish
about it -- in fact, it is rather elegant and deep, even though
there's something dark to it.)
+<P>(On first reading, you may want to skip directly to the examples in
+the section "Writing Metaclasses in Python" below, unless you want
+your head to explode.) (XXX I should really restructure this document
+to place the historic notes last. After 1.5a4 is released...)
+
+<P>
+
+<HR>
+
<P>Documentation of the Don Beaudry hook has purposefully been kept
minimal, since it is a feature of incredible power, and is easily
abused. Basically, it checks whether the <b>type of the base
@@ -148,6 +157,10 @@ HREF="http://maigret.cog.brown.edu/pyutil/">MESS</A> or <A
HREF="http://www.digicool.com/papers/ExtensionClass.html" >Extension
Classes</A> for more information.
+<P>
+
+<HR>
+
<H2>Writing Metaclasses in Python</H2>
<P>In Python 1.5, the requirement to write a C extension in order to
@@ -502,6 +515,8 @@ Synch module, and it would be interesting to add preconditions to it
as well. This needs more research. Perhaps a metaclass could be
provided that allows stackable wrappers...
+<P>
+
<HR>
<H2>Things You Could Do With Metaclasses</H2>