Question

In Python: read in 'marks.txt' . The file format is one number per line. Your program will run through all these numbers, and make sure that they are valid input.

you have to Create two lists: one for valid numbers and one for invalid numbers.

For a number to be valid the number has to:

Must be less than or equal to 100

Must be greater than or equal to 0

Must not have any letters inside of it (it must be numeric -- use the string function .isnumeric())

Print out list of bad inputs, and print out average of the good inputs.

thank you

Answer 1

lst_valid=[]

lst_Invalid=[]

for line in open("marks.txt"):

line = line.strip()

try:

    temp = int(line)

    if temp >= 0 and temp <=100:

      lst_valid.append(temp)

    else:

      lst_Invalid.append(temp)

except:

    lst_Invalid.append(line)

print("Valid:",lst_valid)

print("InValid:",lst_Invalid)

if len(lst_valid) != 0:

print("Average of Valid Numbers:",sum(lst_valid)/len(lst_valid))

else:

print("Average of Valid Number is 0")

   

---------------------------------------------------

SEE OUTPUT

Thanks, PLEASE COMMENT if there is any concern.