This is my first program in Python and I am having some trouble so forgive me if I have some simply syntax issues.
I am writing a program that calculates a student’s final score based on one exam grade worth 60% and 7 other test scores worth a combined 40% of the final grade. The user is asked to input the one exam score then asked to input the 7 test scores which are read in a loop. The letter grade is then determined from the final score calculated from the exam and tests. After that a grade comment is printed corresponding to the letter grade given to the student. This is my code so far:
def read_test_scores() :
print("ENTER STUDENT ID: ")
id = int(input())
print("ENTER EXAM SCORE: ")
exam = int(input())
print("ENTER ALL TEST SCORES: ")
score1 = int(input())
score2 = int(input())
score3 = int(input())
score4 = int(input())
score5 = int(input())
score6 = int(input())
score7 = int(input())
sum = (score1 + score2 + score3 + score4 + score5 + score6 + score7)
tavge = sum/7
return tavge
def compute_final_score(tavge, exam) :
final_score = 0.4 * tavge + 0.6 * exam
return final_score
def get_letter_grade(final_score) :
if 90 <= final_score <= 100:
grade = 'A'
elif 80 <= final_score <= 89:
grade = 'B'
elif 70 <= final_score <= 79:
grade = 'C'
elif 60 <= final_score <= 69:
grade = 'D'
else:
grade = 'F'
return grade
def print_comment(grade) :
if grade = 'A':
print "COMMENT: Very Good"
elif grade = 'B':
print "COMMENT: Good"
elif grade = 'C':
print "COMMENT: Satisfactory"
elif grade = 'D':
print "COMMENT: Need Improvement"
elif grade = 'F'
print "COMMENT: Poor"
read_test_scores()
print "TEST AVERAGE IS: " + str(tavge)
compute_final_score()
print "FINAL SCORE IS: " + str(final_score)
get_letter_grade(final_score)
print "LETTER GRADE IS: " + str(grade)
print_comment(grade)
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Answer
Here’s my answer. The code should run. Notes are inserted as comments.
# NOTE: I haven't checked whether your math is right, or
# if the computed values are correct. I did however get your
# script to work.
def read_test_scores():
print("ENTER STUDENT ID: ")
id = int(input())
print("ENTER EXAM SCORE: ")
exam = int(input())
print("ENTER ALL TEST SCORES: ")
score1 = int(input())
score2 = int(input())
score3 = int(input())
score4 = int(input())
score5 = int(input())
score6 = int(input())
score7 = int(input())
sum = (score1 + score2 + score3 + score4 + score5 + score6 + score7)
tavge = sum / 7.0
# NOTE: if you want to use any variables from this function,
# then you have to "bring them outside" by "returning"
# them. Here, I return the values tavge, id, and exam. I noticed
# that bringing out "exam" is necessary since you'll
# be using it later on.
return tavge, id, exam
def compute_final_score(tavge, exam):
final_score = 0.4 * tavge + 0.6 * exam
return final_score
def get_letter_grade(final_score):
if 90 <= final_score <= 100:
grade = 'A'
elif 80 <= final_score <= 89:
grade = 'B'
elif 70 <= final_score <= 79:
grade = 'C'
elif 60 <= final_score <= 69:
grade = 'D'
else:
grade = 'F'
return grade
def print_comment(grade):
# NOTE `=` is for assignment. We use it when we want to
# tell python to make a variable mean something. For example:
# a = "some_name" basically means that when we call a, it would
# return the string "some_name".
# What you want to use here is `==` which is the equality operator.
# This checks whether or thing are equal.
if grade == 'A':
print("COMMENT: Very Good")
elif grade == 'B':
print("COMMENT: Good")
elif grade == 'C':
print("COMMENT: Satisfactory")
elif grade == 'D':
print("COMMENT: Need Improvement")
elif grade == 'F':
print("COMMENT: Poor")
# NOTE 1: you need to assign the function results to a
# variable (or variables), otherwise, the result or return value
# will go nowhere and you can't use it
tavge, id, exam = read_test_scores()
print "TEST AVERAGE IS: " + str(tavge)
# NOTE 2: variable names do not have to be the same as
# the name in their respective functions. Here, you can see
# that it will still run even if I changed the variable
# name final_score to my_variable. Although, of course, using
# final_score would still work.
# NOTE 3: the final_score function requires 2 inputs,
# namely tavge and exam. This basically means that you have to feed
# it with these 2 values for it to work. I took the
# tavge and exam variables as the results from your read_test_scores
# function
my_variable = compute_final_score(tavge, exam)
print("FINAL SCORE IS: " + str(my_variable))
grade = get_letter_grade(my_variable)
print("LETTER GRADE IS: " + str(grade))
print_comment(grade)
# FINAL NOTE: I haven't commented regarding coding style etc (like say
# for instance, there are best practices regarding variable names
# within functions, that is, if they should be similar to variable names
# outside the function), but regardless, the code is a good start. I
# would also advise you to try to narrow down your question first
# before posting. This can be done by running your code, and searching
# the internet for the particular erro messages, and if you're still stuck,
# ask here on stackoverflow.