[pynt-devel] imports

[<mpf...@Th...>]

I'm trying to think of a way to have the "import" statement work across 
multiple pynt scripts, was wondering what you thought about this idea. 
What I'd like to do is have something like this:

import ant

ant.javac.debug = true
ant.javac.optimize = false
...etc...

So when "ant" gets imported, a single object gets returned and assigned to 
the "ant" variable. This object has inner objects for each of the ant 
tasks. Pynt would also make sure that "ant" only gets imported once. This 
avoids name collisions and allows us to resovle references imported 
targets correctly.

For example, let's say I want to compile junit, antlr, and pynt, where 
antlr depends on junit, and pynt depends on both:

* junit.pynt *
target compile:
        ...

* antlr.pynt *
import junit

target compile:
        build junit.compile
        ...

* pynt.pynt *
import junit
import antlr

target compile:
        build junit.compile, antlr,compile
        ...


In this case, junit.pynt would only get run once, even though it is 
imported twice. You can think of each pynt script as defining a singleton 
object, and the imports simply create a reference to that singleton. We 
would need to set up some sort of PYNTPATH to tell pynt where to look for 
the imported scripts (ie "import junit" would look for "junit.pynt", or 
maybe for a jar file called "junit.par" or something).

thoughts?