automatic progress indicator

[rubbishemail at web.de]

Hello,


I have several functions calling each other several times:

iter=0
iterations=50*20 in this case, how can the program calculate this value
automatically ????


def a(y):
   for x in range(20):
        # this takes a constant time
        ...
        iter+=1
        progress=iter/iterations


def b()
    for y in range(50):
        a(y)


The  level of the loops is not known in advance, since the
user can supply his own script to modify the main program.
(b is a library routine, the user will write something like
for value in [...]
    for voltage in [...]
         b()

I would like to supply a progress indicator,  any ideas?


many thanks


Daniel