برای این عمل از دستور فرمت استفاده می گردد

quantity = 3
itemno = 567
price = 49.95
myorder = "I want {} pieces of item {} for {} dollars."
print(myorder.format(quantity, itemno, price))

----------------چاپ-----------------

I want 3 pieces of item 567 for 49.95 dollars.