def splitting():
    selectedFeatures = []
    for l_feat in l_layer.getFeatures():
        l_geom = l_feat.geometry().asPolyline()
        l_featid = l_feat.id()
        print('l_geom is',l_geom)
        g_layer.select(l_featid)
        sel_feat = g_layer.selectedFeatures()[0]
        sel_feat_geom = sel_feat.geometry()
        for p_feat in p_layer.getFeatures():
            if p_feat.geometry().intersects(sel_feat_geom):
                intersection_geom = p_feat.geometry().intersection(sel_feat_geom)
                if intersection_geom.asPoint() != l_geom[0] and intersection_geom.asPoint() !=l_geom[-1]:
                    print '------', p_feat.id()
                    l_layer.startEditing()
#                    l_layer.select(l_feat.id())
                    t = l_layer.splitFeatures([intersection_geom.asPoint()],True)
                    print('t is',t)
                    l_layer.commitChanges()
#                    l_layer.removeSelection()
                else:
                    pass
            g_layer.removeSelection()
    qgis.utils.iface.mapCanvas().refresh()