python partial, how to assign position of input argument

`functools.partial` in Python allows you to create a new function by partially applying arguments to an existing function. You can also assign the position of the input argument using `functools.partial`.

To assign the position of the input argument, you need to use the `functools.partial` function and pass the argument position as a keyword argument. Here is an example:

import functools

def multiply(x, y):
    return x * y

double = functools.partial(multiply, y=2)  # Assigns the second argument's position to y

print(double(5))  # Output: 10

In the above example, we create a new function `double` from the `multiply` function by partially applying the `y` argument with a value of 2. We also assign the position of the `y` argument as the second argument of `multiply`.

Then, we call the `double` function with `x=5` as the first argument and `y=2` as the second argument. The output is `10`, which is the result of `5 * 2`.