How do I access a main frunction from an import module?
Steve
steve at ferg.org
Fri Nov 24 13:30:16 EST 2006
This is an interesting question. It almost looks like a case of
event-driven programming, where main is the plug-in and abc is the
framework.
http://eventdrivenpgm.sourceforge.net/
So how about something like this:
################## abc.py ####################
#------------------------------------------------------------
# an "abstract" function.
# It should be over-ridden in the calling program
#------------------------------------------------------------
def m():
raise AssertionError("You should have over-ridden abstract function
m()")
def a():
m()
return None
########### main.py ####################
import abc # "instantiate" the framework
# define our our "concrete" function m
def m():
print 'something'
return None
#-----------------------------------------------
# override the "abstract" function abc.m()
# with our own "concrete" function m().
# Comment out this line and see what happens.
#-----------------------------------------------
abc.m = m
# invoke the a() function in the abc framework
abc.a()
#################################################
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