class_test.py

# Human class
class human:
    name = 'default'
    age = 0
    height = 0
    affiliation = 'default'

    # Constructor
    def __init__(self, name, age, height, affiliation):
        self.name = name
        self.age = age
        self.height = height
        self.affiliation = affiliation

    # Magic function for string output
    def __str__(self):
        return "<human: name=%s; age=%d; height=%d; affiliation=%s>" \
            % (self.name, self.age, self.height, self.affiliation)

# Make some humans in a dictionary
humans = {
    'steffen': human('steffen', 19, 50, 'noob'),
    'tony': human('tony', 20, 88, 'noob'),
    'tomsan': human('tomsan', 19, 87, 'pro')
}

# Loop through the humans and print them
for h in humans:
    print humans[h]