psycopg2 should not be mandatory

Author: yohanboniface

postgis/__init__.py

@@ -7,7 +7,10 @@
 from .multipolygon import MultiPolygon
 from .point import Point
 from .polygon import Polygon
-from .psycopg import register  # Retrocompat.
+try:
+    from .psycopg import register  # Retrocompat.
+except ImportError:
+    pass
 
 __all__ = ['Geometry', 'register', 'Point', 'LineString', 'Polygon',
            'MultiPoint', 'MultiLineString', 'MultiPolygon',

setup.py

@@ -46,7 +46,7 @@ def list_modules(dirname):
     cmdclass = {'build_ext': build_ext}
 
 
-VERSION = (1, 0, 2)
+VERSION = (1, 0, 3)
 
 setup(
     name='postgis',