gistfile1.py

def main_method(arg1, arg2):
     d = long_method_1(arg1)
     d2 = long_method_2(arg2)
     d_list = defer.gatherResults([d, d2])    
     d_list.addCallback(compose_results);
     return d_list

def long_method_1(arg):
    deferred = getPage('blah')
    return deferred1

def long_method_2(arg):
    deferred = getPage('blah2')
    return deferred2

def compose_results(results):
    do composition
    return composition