'Returns the full path to the file for a given season poster.
show_obj: a TVShow instance for which to generate the path
season: a season number to be used for the path. Note that season 0
means specials.'

@staticmethod
def get_season_poster_path(show_obj, season):

    if (season == 0):
        season_poster_filename = u'season-specials'
    else:
        season_poster_filename = (u'season' + str(season).zfill(2))
    return os.path.join(show_obj.location, (season_poster_filename + u'.tbn'))
