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Use functions instead of classes

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This commit is contained in:
Matthew Grove
2020-01-22 07:18:18 +00:00
parent c8fa12e914
commit 675bae1b09
1 changed files with 52 additions and 55 deletions
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107
specimen-igcse-prereleases.py
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@@ -1,62 +1,59 @@
class Prerelease_047802: def prerelease_047802:
def __init__(self): # define lists for all required data
Prerelease_047802.prerelease(self) student_names = []
def prerelease(self): test_1_marks = []
# define lists for all required data test_2_marks = []
student_names = [] test_3_marks = []
test_1_marks = [] total_marks = []
test_2_marks = [] # define number of students to record data for
test_3_marks = [] number_of_students = 30
total_marks = [] # define variable for storing total marks gained by all students overall
# define number of students to record data for sum = 0
number_of_students = 30
# define variable for storing total marks gained by all students overall
sum = 0
# function for prompting user for input, then checking it against conditions # function for prompting user for input, then checking it against conditions
def getMark(test_number, student_index, max_mark): def getMark(test_number, student_index, max_mark):
# keep asking for the mark until a valid mark is entered # keep asking for the mark until a valid mark is entered
mark = None mark = None
while not mark: while not mark:
# ask for mark of given student, for given test number # ask for mark of given student, for given test number
mark = input("%s test %d mark: " % (student_names[student_index], test_number)) mark = input("%s test %d mark: " % (student_names[student_index], test_number))
# check if mark is given and that it's numeric # check if mark is given and that it's numeric
if (mark and mark.isnumeric()): if (mark and mark.isnumeric()):
# check mark is in acceptable range of values # check mark is in acceptable range of values
if (int(mark) < 0 or int(mark) > max_mark): if (int(mark) < 0 or int(mark) > max_mark):
mark = None
else:
mark = None mark = None
# if input is invalid, print error message else:
if not mark: mark = None
print("Invalid input. Please enter a number between 0 and %d." % max_mark) # if input is invalid, print error message
# return mark if not mark:
return int(mark) print("Invalid input. Please enter a number between 0 and %d." % max_mark)
# return mark
return int(mark)
# do this for all students # do this for all students
for i in range(number_of_students): for i in range(number_of_students):
# retrieve and store student's name # retrieve and store student's name
student_names.append(input("Student %d name: " % (i + 1))) student_names.append(input("Student %d name: " % (i + 1)))
# do this for all students # do this for all students
for i in range(number_of_students): for i in range(number_of_students):
# retrieve and store student's test marks # retrieve and store student's test marks
# test #1 has a max mark of 20 # test #1 has a max mark of 20
test_1_marks.append(getMark(1, i, 20)) test_1_marks.append(getMark(1, i, 20))
# test #2 has a max mark of 25 # test #2 has a max mark of 25
test_2_marks.append(getMark(2, i, 25)) test_2_marks.append(getMark(2, i, 25))
# test #3 has a max mark of 35 # test #3 has a max mark of 35
test_3_marks.append(getMark(3, i, 35)) test_3_marks.append(getMark(3, i, 35))
# record student's total marks # record student's total marks
total_marks.append(test_1_marks[i] + test_2_marks[i] + test_3_marks[i]) total_marks.append(test_1_marks[i] + test_2_marks[i] + test_3_marks[i])
# add student's total marks to sum of all marks gained by all students overall # add student's total marks to sum of all marks gained by all students overall
sum += total_marks[-1] sum += total_marks[-1]
# print each student's total marks # print each student's total marks
for i in range(number_of_students): for i in range(number_of_students):
print("%s: %d" % (student_names[i], total_marks[i])) print("%s: %d" % (student_names[i], total_marks[i]))
# print average total for all students # print average total for all students
print("Average total: %.2f" % (sum / 30)) print("Average total: %.2f" % (sum / 30))
Prerelease_047802() prerelease_047802()