File: callbacks.cdb

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# Testing of calling back on Python routines from C++.

def fun(e):
    print("received:    "+str(e))
    distribute(e, repeat=True)
    print("turned into: "+str(e))

\prod{#}::Distributable.
a:=A*(B+C)

callback(a)
callback(a, fun)
callback(callback=fun, ex=a)
callback(a, callback=fun)

spl = split_terms(a)
for t in spl:
	 print "term "+str(t)