Get filename and extension from a /path/to/foofile.bar

filename.py

# coding=utf-8
def file_name_ext(path_to_file, with_dots=True):
    """
    Returns file_name and file_extension from a given path; if the file
    has dots in its name and `with_dots` is False, they will be removed.

    Example:
      /some/long/path/to/file.txt will return ('file', 'txt')
      /some/long/path/to/file.with.dots.txt will return ('filewithdots', 'txt')

    :param path_to_file: Path to file or just a file
    :param with_dots: Whether to keep dots in filename or not
    :return: tuple
    """

    if '/' in path_to_file:
        ''' /some/long/path/to/foofile.bar '''
        path_to_file = path_to_file[path_to_file.rfind('/') + 1:]

    file_extension = path_to_file[path_to_file.rfind('.') + 1:]

    if with_dots:
        file_name = '.'.join(path_to_file.split('.')[:-1])
    else:
        file_name = ''.join(path_to_file.split('.')[:-1])

    return file_name, file_extension