Trac #27329: insert 3 whitespaces (PEP8)

src/sage/geometry/polyhedron/base.py

@@ -6589,7 +6589,7 @@ def affine_hull(self, as_affine_map=False, orthogonal=False, orthonormal=False,
         - ``as_affine_map`` (boolean, default = False) -- If ``False``, return
           a polyhedron. If ``True``, return the affine transformation,
           that sends the embedded polytope to a fulldimensional one.
-          It is given as a pair ``(A,b)``, where A is a linear transformation
+          It is given as a pair ``(A, b)``, where A is a linear transformation
           and ``b`` is a vector, and the affine transformation sends ``v`` to
           ``A(v)+b``.
 
@@ -6753,7 +6753,7 @@ def affine_hull(self, as_affine_map=False, orthogonal=False, orthonormal=False,
             sage: Pentagon = polytopes.dodecahedron().faces(2)[0].as_polyhedron()
             sage: Pnormal = Pentagon.affine_hull(orthonormal=True, extend=True)
             sage: Pgonal = Pentagon.affine_hull(orthogonal=True)
-            sage: A,b = Pentagon.affine_hull(orthogonal = True, as_affine_map=True)
+            sage: A, b = Pentagon.affine_hull(orthogonal=True, as_affine_map=True)
             sage: Adet = (A.matrix().transpose()*A.matrix()).det()
             sage: Pnormal.volume()
             1.53406271079097?
@@ -6767,7 +6767,7 @@ def affine_hull(self, as_affine_map=False, orthogonal=False, orthonormal=False,
         An other example with ``as_affine_map=True``::
 
             sage: P = polytopes.permutahedron(4)
-            sage: A,b = P.affine_hull(orthonormal=True, as_affine_map=True, extend=True)
+            sage: A, b = P.affine_hull(orthonormal=True, as_affine_map=True, extend=True)
             sage: Q = P.affine_hull(orthonormal=True, extend=True)
             sage: Q.center()
             (0.7071067811865475?, 1.224744871391589?, 1.732050807568878?)