def __init__(self):
        m = mapnik.Map(256, 256)
        try:
            mapnik.load_map(m, str(self.mapfile))
        except __HOLE__:
            pass
        m.buffer_size = 128
        m.srs = '+init=epsg:3857'
        self.map = m
dataset/ETHPy150Open bkg/django-spillway/spillway/carto.py/Map.__init__