from mapnik import Map, Layer
proj4 = '+proj=tmerc +lat_0=44.25333512777778 +lon_0=-90.84429651944444 +k=1.0000353 +x_0=27000 +y_0=24999.99989839979 +ellps=GRS80 +to_meter=0.3048006096012192 +no_defs'
m = Map(256,256,proj4)
lyr = Layer('Name',proj4)