python 3.x - Passing a list from one function to another -


i need understanding instruction.

your main program code should call “getdata” function. pass list returned “summer” function “getdata” , save sum function returns.

def getdata():     fin = open("sample.dat","r")     numbers=[]     line in fin:         val =line.rstrip()         numbers.append(val)     return numbers def summer(lst):     sum=0     n in range(0,13,2):         sum+=powerval(lst[n],lst[n+1])     return sum

if instruction read,

pass list returned getdata function summer , save sum function returns.

then try:

total = summer(getdata())

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