A sample method that returns multiple values from a python function

Python can return multiple values, which is handy
A return in a function can return only one value, but the return type is not restricted
Therefore, we can "return a tuple type to indirectly return multiple values."
Example is my example in robot framework source code:

    def __init__(self, cells):
        self.cells, self.comments = self._parse(cells)
    def _parse(self, row):
        data = []
        comments = []
        for cell in row:
            cell = self._collapse_whitespace(cell)
            if cell.startswith('#') and not comments:
                comments.append(cell[1:])
            elif comments:
                comments.append(cell)
            else:
                data.append(cell)
        return self._purge_empty_cells(data), self._purge_empty_cells(comments)

Then s/s is the constructor of the class, which will get multiple return values with the return of _parse parse, self._purge_empty_cells(data) to self.cells, and self._purge_empty_cells(comments) to self.comments
Simple as that :)