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Bill McKenna586 Points
Printing String X amount of times.
When we use the code print(input_string*int(input_int)) before running it I would have assumed we would get and error because we are trying to multiply a string times an integer. How does python know that we are just looking to print it x amount of times. x being Int(input_int)
Dan Johnson40,532 Points
The str object in Python defines the
__mul__ method which which effectively overloads the multiplication operator. Defining
__mul__ lets you do stuff like this:
class Message: def __init__(self, message): self.message = message def __mul__(self, operand): repeated_message = "" for i in range(1, operand+1): repeated_message += str(i) + ": " + self.message return repeated_message msg = Message("Overloading the multiplication operator.\n") print(msg * 5)
1: Overloading the multiplication operator. 2: Overloading the multiplication operator. 3: Overloading the multiplication operator. 4: Overloading the multiplication operator. 5: Overloading the multiplication operator.
Here's a list of special method names from the documentation.
Following on from Dan Johnson 's excellent info, if you run Python in a console/terminal and enter the following command:
...you'll see how the
str class/object implements the
Try the following command to see a list of other built-in methods that the
str object has: