class Database:
    connection = 4
    print "Class Start"
    def __init__(self):
        print "Class Init!"
    
    def connect_dbs(self):
        if self.connection is not None:
          self.connection = self.connection + 1
          return self.connection
        else:     
          self.connection = 1
          print "Initial Connecting" 
          return self.connection
        
print "Start"        
U = Database()
for i in range(10):
    print U.connect_dbs() 
print "One more"
U2 = Database()
for i in range(10):
    print U2.connect_dbs()
print Database.connection

 Class Start
Start
Class Init!
5
6
7
8
9
10
11
12
13
14
One more
Class Init!
5
6
7
8
9
10
11
12
13
14
4