Solution Exercise 102: code python to partitions given dictionary to two subdictionary

Exrcise 102

We consider the following dictionary whose keys are the names of the students and the key values are the general averages obtained by passing the final exam:

students = {"student_1" : 13 , "student_2" : 17 , "student_3" : 9 , "student_4" : 15 , 
			 "student_5" : 8 , "student_6" : 14 , "student_7" : 16 , "student_8" : 12 , 
			 "student_9" : 13 , "student_10" : 15 , "student_11" : 14 , "student_112" : 9 , 
			 "student_13" : 10 , "student_14" : 12 , "student_15" : 13 , "student_16" : 7 ,
			 "student_17" : 12 , "student_18" : 15 , "student_19" : 9 , "student_20" : 17 ,}

Write a Python program that partitions this dictionary into two sub-dictionaries:

1. admittedStudents whose keys are the admitted students and the key values are the averages obtained (average greater than or equal to 10).
2. nonAdmittedStudents whose keys are non-admitted students and the key values are the averages obtained (average less than or equal to 10).

Solution

students = {"student_1" : 13 , "student_2" : 17 , "student_3" : 9 , "student_4" : 15 , 
            "student_5" : 8 , "student_6" : 14 , "student_7" : 16 , "student_8" : 12 , 
            "student_9" : 13 , "student_10" : 15 , "student_11" : 14 , "student_112" : 9 , 
            "student_13" : 10 , "student_14" : 12 , "student_15" : 13 , "student_16" : 7 ,
            "student_17" : 12 , "student_18" : 15 , "student_19" : 9 , "student_20" : 17 ,}

# we create two empty dictionaries, one for the admitted and the other for the non-admitted students
admittedStudents = dict ({})
nonAdmittedStudent = dict ({})

# we browse the list of keys and values simultaneously:
# if the key is < 10 the student will be added to the dictionary of students not admitted
# if not, the student will be added to the dictionary of admitted students
for key, value in students.items ():
    if (value <10):
        nonAdmittedStudent[key] = value
    else:
        admittedStudents[key] = value

print ("Admitted students:", admittedStudents)
print ("Students not admitted:", nonAdmittedStudent)
# The output is:
#Admitted students: {'student_1': 13, 'student_2': 17, 'student_4': 15, 'student_6': 14, 'student_7': 16, 'student_8': 12, 'student_9': 13, 'student_10': 15, 'student_11': 14, 'student_13': 10, 'student_14': 12, 'student_15': 13, 'student_17': 12, 'student_18': 15, 'student_20': 17}
#Students not admitted: {'student_3': 9, 'student_5': 8, 'student_112': 9, 'student_16': 7, 'student_19': 9}