Using _recipe in python snippts

In order to test if a variable is set, I've taken to using
_recipe.has_key() - something like this:

:if _recipe.has_key("SUBDIRS"):
	:child $SUBDIRS

I couldn't quickly find another way to do this.

Now the problem is that _recipe doesn't always exist. In particular,
suppose I have a main.aap in .,./a,and ./a/a that looks like this:

==main.aap
:child a/main.aap
==

Finally, in ./a/a/a, main.aap looks lile:
==main.aap
:print $TOPDIR
@if _recipe.has_key("SUBDIRS"):
	:child $SUBDIRS
==

If I run AAP on this setup, AAP tells me (paraphrased): recipe "a"# does
not exist. I haven't quite figured out how to convice AAP that it _does_
exist - adding :program targets in each recipe doesn't seem to make a
difference.

So how _should_ I be testing for the existence of a variable in a Python
snippet?



-- 
 Adriaan de Groot    adridg-FlD2LfDziEhmR6Xm/[email protected]     Kamer A6020     024-3652272
GPG Key Fingerprint 934E 31AA 80A7 723F 54F9  50ED 76AC EE01 FEA2 A3FE
               http://www.cs.kun.nl/~adridg/research/




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