def getsize():
        """
        Retrieve the size of this file in bytes.

        @return: the size of the file at this file path in bytes.
        @raise Exception: if the size cannot be obtained.
        """

        Retrieve the size of this file in bytes.

        @return: the size of the file at this file path in bytes.
        @raise Exception: if the size cannot be obtained.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/python/filepath.py