How to print a global dictionary class properly

[3dimensions]

Let's say I have the following class and we know that the code is working properly:

class Test:
    global_dictionary = {}

    def __init__ (self):
        #Initializations here

    def add_to_global_dictionary (self, username):

    def print_global_dictionary (self):
        print (Test.global_dictionary)

test = Test()
test.add_to_global_dictionary("3dimensions"):
test.print_global_dictionary()

Why is the dictionary printed like this: {'3dimensions': <__main__.Test object at 0x...>} ?