# open a file for reading
file_object = open("testscores.txt", "r")

# read in all data as one long String
alldata = file_object.read()

# split data at line break
# because we know that's how it was stored
data_split = alldata.split("\n")

# store username and password as variables
name = data_split[0]

# iterate through rest of list to extract grades
total = 0
num_tests = 0

for grade in data_split:
    if grade.isnumeric():
        total += int(grade)
        num_tests += 1

# calculate average
avg = total/num_tests

# print out
print(name, "'s average test score is: ", avg, sep = "")

# close the file
myvar.close()