what does {w} do in Python

[Martin Gerard]

Could somebody please help? On lines 12 - 16 what purpose is {w} used for? Is it a TAB?

from objects import Product def show_products(products):    print("PRODUCTS")    for i, product in enumerate(products, start=1):        print(f"{i}. {product.name}")    print() def show_product(product):    w = 18    print("PRODUCT DATA")    print(f"{'Name:':{w}}{product.name}")    print(f"{'Price:':{w}}{product.price:.2f}")    print(f"{'Discount percent:':{w}}{product.discountPercent:d}%")    print(f"{'Discount amount:':{w}}{product.getDiscountAmount():.2f}")    print(f"{'Discount price:':{w}}{product.getDiscountPrice():.2f}")    print() def get_products():    # return a tuple of Product objects    return (Product("Stanley 13 Ounce Wood Hammer", 12.99, 62),            Product('National Hardware 3/4" Wire Nails', 5.06, 0),            Product("Economy Duct Tape, 60 yds, Silver", 7.24, 0)) def get_product(products):    while True:        try:            number = int(input("Enter product number: "))            if number < 1 or number > len(products):                print("Product number out of range. Please try again.")            else:                return products[number-1]        except ValueError:            print("Invalid number. Please try again.")        print() def main():    print("The Product Viewer program")    print()        products = get_products()    show_products(products)    choice = "y"    while choice.lower() == "y":        product = get_product(products)        show_product(product)        choice = input("View another product? (y/n): ")        print()    print("Bye!")         if __name__ == "__main__":    main()

[Jhonson Fernando]

It is f-strings's space between two strings.

name = "Tom"
age = 30
w = 10

print(f"{'Name:':{w}}{name}") # w = 10 between 'Name:' and 'Tom'
print(f"{'Age:':{w}}{age}")

Print:

Name:     Tom
Age:      30

[Martin Gerard]

Thank you Jhonson Fernando