number1 = raw_input( "Enter numerator: " )
number2 = raw_input( "Enter denominator: " )
# attempt to convert and divide values
try:
number1 = float( number1 )
number2 = float( number2 )
result = number1 / number2
# float raises a ValueError exception
except ValueError:
print "You must enter two numbers"
# division by zero raises a ZeroDivisionError exception
except ZeroDivisionError:
print "Attempted to divide by zero"
# else clause's suite executes if try suite raises no exceptions
else:
print "%.3f / %.3f = %.3f" % ( number1, number2, result )