lineartransformation.patch

# HG changeset patch
# User Jason Grout <jason.grout@drake.edu>
# Date 1351957330 18000
# Node ID 4ff83ffcda994227824decf218251b98ec5d946d
# Parent  ef3d23d8f94ef5fd4911bda6da8174914a8d4ea6
[mq]: lineartransformations.patch

diff --git a/sage/modules/vector_space_homspace.py b/sage/modules/vector_space_homspace.py
--- a/sage/modules/vector_space_homspace.py
+++ b/sage/modules/vector_space_homspace.py
@@ -390,9 +390,6 @@
             except (ArithmeticError, TypeError), e:
                 msg = 'some proposed image is not in the codomain, because\n' + e.args[0]
                 raise ArithmeticError(msg)
-        else:
-            msg = 'vector space homspace can only coerce matrices, vector space morphisms, functions or lists, not {0}'
-            raise TypeError(msg.format(A))
         return vector_space_morphism.VectorSpaceMorphism(self, A)
 
     def _repr_(self):
@@ -409,4 +406,4 @@
             'dimension', '3', 'over', 'Rational', 'Field']
         """
         msg = 'Set of Morphisms (Linear Transformations) from {0} to {1}'
-        return msg.format(self.domain(), self.codomain())
\ No newline at end of file
+        return msg.format(self.domain(), self.codomain())
diff --git a/sage/modules/vector_space_morphism.py b/sage/modules/vector_space_morphism.py
--- a/sage/modules/vector_space_morphism.py
+++ b/sage/modules/vector_space_morphism.py
@@ -852,15 +852,6 @@
             raise TypeError, 'homspace must be a vector space hom space, not {0}'.format(homspace)
         if isinstance(A, matrix_morphism.MatrixMorphism):
             A = A.matrix()
-        if not is_Matrix(A):
-            msg = 'input must be a matrix representation or another matrix morphism, not {0}'
-            raise TypeError(msg.format(A))
-        # now have a vector space homspace, and a matrix, check compatibility
-
-        if homspace.domain().dimension() != A.nrows():
-            raise TypeError('domain dimension is incompatible with matrix size')
-        if homspace.codomain().dimension() != A.ncols():
-            raise TypeError('codomain dimension is incompatible with matrix size')
 
         A = homspace._matrix_space()(A)
         free_module_morphism.FreeModuleMorphism.__init__(self, homspace, A)