friend group data model

group.py

@@ -1,5 +1,65 @@
 """An example of how to represent a group of acquaintances in Python."""
 
-# Your code to go here...
+from hashlib import new
+from statistics import mean
 
-my_group =
+
+my_group = {
+    'Jill': {
+        'age': 26,
+        'job': ['biologist'],
+        'connections': {
+            'Zalika': 'friend',
+            'John': 'partner'
+        }},
+    'Zalika': {
+        'age': 28,
+        'job': ['artist'],
+        'connections': {
+            'Jill': 'friend',
+            'Nash': 'tenant'
+        }},
+    'John': {
+        'age': 27,
+        'job': ['writer'],
+        'connections': {
+            'Jill': 'partner',
+            'Nash': 'cousin'
+        }},
+    'Nash': {
+        'age': 34,
+        'job': ['chef'],
+        'connections': {
+            'John': 'cousin',
+            'Zalika': 'landlord'
+        }}
+}
+
+def forget(person1, person2):
+    """person1 and person2 are names as strings"""
+    if person1 in my_group[person2]['connections'].keys():
+        del my_group[person2]['connections'][person1]
+    if person2 in my_group[person1]['connections'].keys():
+        del my_group[person1]['connections'][person2]
+
+def add_person(group, name, age, job, relations):
+    """group = defined variable, name, job = string, age = number, relations = dictionary"""
+    group[name] = {}
+    group[name]['age'] = age
+    group[name]['job'] = [job]
+    group[name]['connections'] = relations
+    for newrelation in group[name]['connections'].keys(): #this ensures that connections are made both ways
+        if newrelation in my_group.keys():
+            my_group[newrelation]['connections'][name] = group[name]['connections'][newrelation]
+
+def average_age(group):
+    """group is a dictionary of people where age is a key"""
+    age = 0
+    for person in group.keys():
+        age += group[person]['age']
+    print('The average age is {0:.2f} years'.format(age/len(group)))
+
+print('The maximum age is', max([my_group[person]['age'] for person in my_group.keys()]))
+print('The average number of relations among members of the group is {0:.2f}'.format(mean([len(my_group[person]              ['connections']) for person in my_group.keys()])))
+print('The maximum age of people in the group that have at least one relation is', max([my_group[person]['age'] for person in my_group.keys() if my_group[person]['connections']]))
+print('The maximum age of people in the group that have at least one friend is', max([my_group[person]['age'] for person in my_group.keys() if 'friend' in my_group[person]['connections'].values()]))