Pretty print a dictionary as simple keys and values

def prettyPrintDictionary(d):
    '''Pretty print a dictionary as simple keys and values'''
    maxKeyLength = 0
    maxValueLength = 0
    for key, value in d.iteritems():
        maxKeyLength = max(maxKeyLength, len(key))
        maxValueLength = max(maxValueLength, len(key))
    for key in sorted(d.keys()):
        print ("%"+str(maxKeyLength)+"s : %-" + str(maxValueLength)+ "s") % (key,d[key])