The groups_per_user function receives a dictionary, which contains group names with the list of users. Users can belong to multiple groups. Fill in the blanks to return a dictionary with the users as keys and a list of their groups as values.

def groups_per_user (group_dictionary):

user_groups = {}

# Go through group_dictionary

for ___:

# Now go through the users in the group

for ___: # Now add the group to the the list of

# groups for this user, creating the entry

# in the dictionary if necessary

return (user_groups)

print (groups_per_user ({"local": ["admin", "userA"],

"public": ["admin", "userB"],

"administrator": ["admin"] }))

The groups_per_user function receives a dictionary, which contains group names with the list of users.

Explanation:

The blanks to return a dictionary with the users as keys and a list of their groups as values is shown below:

def groups_per_user (group_dictionary):

user_groups = {}

# Go through group_dictionary

for group, users in group_dictionary. items ():

# Now go through the users in the group

for user in users:

# Now add the group to the the list of

# groups for this user, creating the entry

# in the dictionary if necessary

user_groups[user] = user_groups. get (user,[]) + [group]

return (user_groups)

print (groups_per_user ({"local": ["admin", "userA"],

"public": ["admin", "userB"],

"administrator": ["admin"] }))