Sort imports, separate lazy_import

src/sage/schemes/hyperelliptic_curves/hyperelliptic_generic.py

@@ -33,16 +33,18 @@
 #                  http://www.gnu.org/licenses/
 #*****************************************************************************
 
-from sage.rings.polynomial.polynomial_ring_constructor import PolynomialRing
+import sage.schemes.curves.projective_curve as plane_curve
+
+from sage.misc.lazy_import import lazy_import
 from sage.rings.big_oh import O
-from sage.rings.power_series_ring import PowerSeriesRing
 from sage.rings.laurent_series_ring import LaurentSeriesRing
+from sage.rings.polynomial.polynomial_ring_constructor import PolynomialRing
+from sage.rings.power_series_ring import PowerSeriesRing
 from sage.rings.real_mpfr import RR
-from sage.misc.lazy_import import lazy_import
-lazy_import("sage.functions.all", "log")
 from sage.structure.category_object import normalize_names
 
-import sage.schemes.curves.projective_curve as plane_curve
+lazy_import("sage.functions.all", "log")
+
 
 def is_HyperellipticCurve(C):
     """

src/sage/schemes/toric/toric_subscheme.py

@@ -22,10 +22,11 @@
 # ****************************************************************************
 
 from sage.misc.lazy_import import lazy_import
-lazy_import("sage.calculus.functions", "jacobian")
 from sage.rings.integer_ring import ZZ
 from sage.schemes.generic.algebraic_scheme import AlgebraicScheme_subscheme
 
+lazy_import("sage.calculus.functions", "jacobian")
+
 
 class AlgebraicScheme_subscheme_toric(AlgebraicScheme_subscheme):
     r"""

src/sage/schemes/toric/variety.py

@@ -304,26 +304,29 @@
 
 import sys
 
-from sage.misc.lazy_import import lazy_import
-lazy_import("sage.functions.all", "factorial")
 import sage.geometry.abc
+
+from sage.categories.fields import Fields
 from sage.geometry.cone import Cone
 from sage.geometry.fan import Fan
+from sage.misc.cachefunc import cached_method
 from sage.misc.latex import latex
+from sage.misc.lazy_import import lazy_import
 from sage.misc.misc_c import prod
-from sage.misc.cachefunc import cached_method
-from sage.structure.unique_representation import UniqueRepresentation
 from sage.modules.free_module_element import vector
-from sage.rings.polynomial.polynomial_ring_constructor import PolynomialRing
 from sage.rings.integer_ring import ZZ
-from sage.rings.rational_field import QQ
-from sage.rings.quotient_ring_element import QuotientRingElement
+from sage.rings.polynomial.polynomial_ring_constructor import PolynomialRing
 from sage.rings.quotient_ring import QuotientRing_generic
+from sage.rings.quotient_ring_element import QuotientRingElement
+from sage.rings.rational_field import QQ
 from sage.schemes.affine.affine_space import AffineSpace
 from sage.schemes.generic.ambient_space import AmbientSpace
 from sage.schemes.toric.homset import SchemeHomset_points_toric_field
 from sage.structure.category_object import certify_names
-from sage.categories.fields import Fields
+from sage.structure.unique_representation import UniqueRepresentation
+
+lazy_import("sage.functions.all", "factorial")
+
 _Fields = Fields()