Python | Swapping and reordering elements in a sequence

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Reordering values

In Python, you can reorder the values in a format string by specifying their positions explicitly using index numbers in the curly braces {}. Here's an example:

name = "Alice"

age = 25

print("My name is {1} and I am {0} years old.".format(age, name))

In this example, the format string is "My name is {1} and I am {0} years old.", which contains two placeholders. The first placeholder, {1}, is replaced by the value of the name variable, and the second placeholder, {0}, is replaced by the value of the age variable. By specifying the index numbers in the curly braces, you can change the order in which the variables are inserted into the format string.

You can use any integer as an index number, as long as it corresponds to a valid argument in the format() method. If you specify an index number that is out of range or not an integer, you will get an error.

Keep in mind that while reordering values can be useful in certain cases, it can also make the code harder to read and maintain. If you have a large number of variables to insert into a format string, you may prefer to use named placeholders or f-strings, which can make the code more readable and easier to understand.