import decimal  
context = decimal.getcontext()  
value = decimal.Decimal(1) / decimal.Decimal(17)  
print("1/17 = ",value)  
context.prec = 4  
print("Precision: ",4)  
  
context.rounding = getattr(decimal, 'ROUND_CEILING')  
value = decimal.Decimal(1) / decimal.Decimal(17)  
print("Round upwards towards infinity: ",value)  
  
context.rounding = getattr(decimal, 'ROUND_FLOOR')  
value = decimal.Decimal(1) / decimal.Decimal(17)  
print("Round down towards negative infinity: ",value)