In Python, a function can return multiple values by grouping them into a tuple. When the return statement specifies multiple values separated by commas, Python automatically packs them into a single tuple object which is sent back to the caller.

For example, a function can be defined to calculate both the area and perimeter of a rectangle. The function accepts length and breadth as parameters, computes the values, and returns them simultaneously.

def calc_rect(length, breadth): area = length * breadth perimeter = 2 * (length + breadth) return area, perimeter

In this example, the statement return area, perimeter returns a tuple containing both calculated values to the calling function.