## Tuesday, September 22, 2020

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

# 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):
else:

# 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}``````

Younes Derfoufi
my-courses.net