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.

Dictionaries2.py

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 users in group_dictionary[group]:
			# Now add the group to the the list of
			if users in user_groups:
				user_groups[users].append(group)
			else:
				user_groups[users] = [group]
# 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"] }))