Mini-Tutorial Python

a = 0
while a < 10:
        a = a + 1
        print a
      

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a = 1
s = 0
print 'Enter Numbers to add to the sum.'
print 'Enter 0 to quit.'
while a != 0 :
        print 'Current Sum:',s
        a = input('Number? ')
        s = s + a
print 'Total Sum =',s
      

Enter Numbers to add to the sum.
Enter 0 to quit.
Current Sum: 0
Number? 200
Current Sum: 200
Number? -15.25
Current Sum: 184.75
Number? -151.85
Current Sum: 32.9
Number? 10.00
Current Sum: 42.9
Number? 0
Total Sum = 42.9