I'm using pyproj to convert some coordinates from WGS84 to OSGB36. When mapped out the converted and unconverted don't map to the same places on a map. The OSGB36 coordinates are mapped about 100 meters north west of where they ought to be.
Does anyone know what might be wrong here?
Here's an example of what I'm doing in code
import pyproy wgs84=pyproj.Proj("+init=EPSG:4326") osgb36=pyproj.Proj("+init=EPSG:27700") row = pyproj.transform(wgs84, osgb36, lng, lat)