python memory overhead from calling functions/methods

Question

It makes code cleaner and easier to read / work-with when things are nicely divided into functions. Is there any memory usage overhead to passing (large) objects back and forth between different method calls? ie

Model 1 - Unified:

data1 = getData("1")
# Do stuff to data1
# ...
saveData(data1)

data2 = getData("2")
# Do stuff to data2
# ...
saveData(data2)

Model 2 - Divided:

def doStuff(dat):
    # Do stuff to data
    # ...
    return dat

data1 = getData("1")
data1 = doStuff(data1)
saveData(data1)
data2 = getData("2")
data2 = doStuff(data2)
saveData(data2)

Answer 1

当然有，但是除非您做一些疯狂的事情，否则它相对于程序的其余部分来说应该很小，只有几千字节的大小。