import traceback
def function1():
function2()
def function2():
function3()
def function3():
try:
raise Exception, "An exception has occurred"
except Exception:
print "Caught exception in function3. Reraising....\n"
raise
try:
function1()
except Exception, exception:
print "Exception caught in main program."
print "\nException arguments:", exception.args
print "\nException message:", exception
print "\nTraceback:"
traceback.print_exc()