diff --git a/python/sage_helper.py b/python/sage_helper.py
index 1d5a8e8a..f790378c 100644
--- a/python/sage_helper.py
+++ b/python/sage_helper.py
@@ -34,9 +34,11 @@ def sage_method(function):
         from sage.all import (cached_method, real_part, imag_part, round, ceil, floor, log,
                               CDF, ComplexField, NumberField, PolynomialRing, identity_matrix)
         from sage.all import VectorSpace
-        from sage.all import ComplexBallField, exp, sin, block_matrix, prime_range
+        from sage.all import ComplexBallField, exp, sin, block_matrix, prime_range, det
+        from sage.all import LaurentPolynomialRing, AbelianGroup, GroupAlgebra
     except ImportError:
         # Modularized Sage library
+        from sage.algebras.group_algebra import GroupAlgebra
         from sage.arith.misc import gcd, xgcd
         from sage.combinat.subset import powerset
         from sage.functions.hyperbolic import arccosh
@@ -46,11 +48,12 @@ def sage_method(function):
                                           ceil,
                                           floor)
         from sage.functions.trig import sin
+        from sage.groups.abelian_gps.abelian_group import AbelianGroup
         from sage.matrix.constructor import Matrix as matrix
         from sage.matrix.matrix_space import MatrixSpace
         from sage.matrix.special import block_matrix, identity_matrix
         from sage.misc.cachefunc import cached_method
-        from sage.misc.functional import log, round, sqrt
+        from sage.misc.functional import det, log, round, sqrt
         from sage.misc.misc_c import prod
         from sage.modules.free_module import VectorSpace
         from sage.modules.free_module_element import free_module_element as vector
@@ -64,6 +67,7 @@ def sage_method(function):
         from sage.rings.infinity import Infinity
         from sage.rings.integer import Integer
         from sage.rings.integer_ring import ZZ
+        from sage.rings.polynomial.laurent_polynomial_ring import LaurentPolynomialRing
         from sage.rings.number_field.number_field import NumberField
         from sage.rings.polynomial.polynomial_ring_constructor import PolynomialRing
         from sage.rings.rational import Rational
diff --git a/python/snap/nsagetools.py b/python/snap/nsagetools.py
index 1c1edf35..6a759532 100644
--- a/python/snap/nsagetools.py
+++ b/python/snap/nsagetools.py
@@ -5,22 +5,8 @@
 from ..sage_helper import _within_sage, sage_method
 
 if _within_sage:
-    import sage
-    from sage.rings.integer_ring import Z as ZZ
-    from sage.modules.free_module_element import free_module_element as vector
-    from sage.matrix.constructor import Matrix as matrix
-    from sage.matrix.special import block_matrix
-    from sage.matrix.special import identity_matrix
-    from sage.arith.misc import GCD as gcd
-    from sage.misc.misc_c import prod
-    from sage.misc.functional import det
-    from sage.matrix.matrix_space import MatrixSpace
-    from sage.groups.abelian_gps.abelian_group import AbelianGroup
-    from sage.algebras.group_algebra import GroupAlgebra
-    from sage.structure.sage_object import SageObject
-    from sage.rings.polynomial.polynomial_ring_constructor import PolynomialRing
-    from sage.rings.polynomial.laurent_polynomial_ring import LaurentPolynomialRing
-
+    from ..sage_helper import ZZ, vector, matrix, block_matrix, identity_matrix, gcd, prod, det
+    from ..sage_helper import MatrixSpace, PolynomialRing, SageObject, AbelianGroup, GroupAlgebra
     from .polished_reps import polished_holonomy, MatrixRepresentation
     Id2 = MatrixSpace(ZZ, 2)(1)
 else: