Improve error messages in linexprs.py

[linpy.git] / pypol / domains.py

diff --git a/pypol/domains.py b/pypol/domains.py
index cd118e8..d80fd91 100644 (file)
--- a/pypol/domains.py
+++ b/pypol/domains.py
@@ -5,9 +5,8 @@ import re
 from fractions import Fraction
 
 from . import islhelper
-from .islhelper import mainctx, libisl, isl_set_basic_sets
-from .geometry import GeometricObject
-from .coordinates import Point
+from .islhelper import mainctx, libisl
+from .geometry import GeometricObject, Point
 from .linexprs import Expression, Symbol
 
 
@@ -331,7 +330,7 @@ class Domain(GeometricObject):
     def _fromislset(cls, islset, symbols):
         from .polyhedra import Polyhedron
         islset = libisl.isl_set_remove_divs(islset)
-        islbsets = isl_set_basic_sets(islset)
+        islbsets = islhelper.isl_set_basic_sets(islset)
         libisl.isl_set_free(islset)
         polyhedra = []
         for islbset in islbsets: