diff --git a/cylp/cpp/ICbcModel.cpp b/cylp/cpp/ICbcModel.cpp
index a3bab13b..15998ec8 100644
--- a/cylp/cpp/ICbcModel.cpp
+++ b/cylp/cpp/ICbcModel.cpp
@@ -8,7 +8,7 @@ PyObject* ICbcModel::getPrimalVariableSolution(){
     _import_array();
     npy_intp dims = this->solver()->getNumCols();
     double* d = (double*)(this->solver()->getColSolution());
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, d );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, d );
 
     return Arr;
 }
diff --git a/cylp/cpp/IClpSimplex.cpp b/cylp/cpp/IClpSimplex.cpp
index 512ff300..93861222 100644
--- a/cylp/cpp/IClpSimplex.cpp
+++ b/cylp/cpp/IClpSimplex.cpp
@@ -345,7 +345,7 @@ bool IClpSimplex::varIsFixed(int ind){
 PyObject* IClpSimplex::getStatusArray(){
 
     npy_intp dims = getNumCols() + getNumRows();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_UINT8, this->status_ );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_UINT8, this->status_ );
 
     return Arr;
 }
@@ -354,7 +354,7 @@ PyObject* IClpSimplex::getStatusArray(){
 PyObject* IClpSimplex::getReducedCosts(){
 
     npy_intp dims = getNumCols() + getNumRows();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->djRegion() );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->djRegion() );
 
     return Arr;
 }
@@ -370,7 +370,7 @@ void IClpSimplex::setReducedCosts(double* rc){
 PyObject* IClpSimplex::getComplementarityList(){
 
     npy_intp dims = getNumCols() + getNumRows();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_INT32, QP_ComplementarityList );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_INT32, QP_ComplementarityList );
 
     return Arr;
 }
@@ -378,7 +378,7 @@ PyObject* IClpSimplex::getComplementarityList(){
 PyObject* IClpSimplex::getPivotVariable(){
 
     npy_intp dims = getNumRows();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_INT32, this->pivotVariable() );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_INT32, this->pivotVariable() );
 
     return Arr;
 }
@@ -387,7 +387,7 @@ PyObject* IClpSimplex::getPivotVariable(){
 PyObject* IClpSimplex::getPrimalRowSolution(){
 
     npy_intp dims = getNumRows();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->primalRowSolution() );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->primalRowSolution() );
 
     return Arr;
 }
@@ -395,33 +395,33 @@ PyObject* IClpSimplex::getPrimalRowSolution(){
 PyObject* IClpSimplex::getPrimalColumnSolution(){
 
     npy_intp dims = getNumCols();
-    PyObject *Arr = PyArray_SimpleNewFromData(1, &dims, PyArray_DOUBLE, this->primalColumnSolution() );
+    PyObject *Arr = PyArray_SimpleNewFromData(1, &dims, NPY_DOUBLE, this->primalColumnSolution() );
 
     return Arr;
 }
 
 PyObject* IClpSimplex::getPrimalColumnSolutionAll(){
     npy_intp dims = getNumCols() + getNumRows();
-    PyObject *Arr = PyArray_SimpleNewFromData(1, &dims, PyArray_DOUBLE, this->primalColumnSolution() );
+    PyObject *Arr = PyArray_SimpleNewFromData(1, &dims, NPY_DOUBLE, this->primalColumnSolution() );
     return Arr;
 }
 
 PyObject* IClpSimplex::getSolutionRegion(){
     npy_intp dims = getNumCols() + getNumRows();
-    PyObject *Arr = PyArray_SimpleNewFromData(1, &dims, PyArray_DOUBLE, this->solutionRegion() );
+    PyObject *Arr = PyArray_SimpleNewFromData(1, &dims, NPY_DOUBLE, this->solutionRegion() );
     return Arr;
 }
 
 PyObject* IClpSimplex::getCostRegion(){
     npy_intp dims = getNumCols() + getNumRows();
-    PyObject *Arr = PyArray_SimpleNewFromData(1, &dims, PyArray_DOUBLE, this->costRegion() );
+    PyObject *Arr = PyArray_SimpleNewFromData(1, &dims, NPY_DOUBLE, this->costRegion() );
     return Arr;
 }
 
 PyObject* IClpSimplex::getDualRowSolution(){
 
     npy_intp dims = getNumRows();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->dualRowSolution() );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->dualRowSolution() );
 
     return Arr;
 }
@@ -429,7 +429,7 @@ PyObject* IClpSimplex::getDualRowSolution(){
 PyObject* IClpSimplex::getDualColumnSolution(){
 
     npy_intp dims = getNumCols();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->dualColumnSolution() );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->dualColumnSolution() );
 
     return Arr;
 }
@@ -437,63 +437,63 @@ PyObject* IClpSimplex::getDualColumnSolution(){
 PyObject* IClpSimplex::getObjective(){
 
     npy_intp dims = getNumCols();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->objective() );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->objective() );
     return Arr;
 }
 
 PyObject* IClpSimplex::getRowLower(){
 
     npy_intp dims = getNumRows();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->rowLower() );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->rowLower() );
     return Arr;
 }
 
 PyObject* IClpSimplex::getRowUpper(){
 
     npy_intp dims = getNumRows();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->rowUpper() );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->rowUpper() );
     return Arr;
 }
 
 PyObject* IClpSimplex::getUpper(){
 
     npy_intp dims = getNumRows() + getNumCols();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->upperRegion() );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->upperRegion() );
     return Arr;
 }
 
 PyObject* IClpSimplex::getLower(){
 
     npy_intp dims = getNumRows() + getNumCols();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->lowerRegion() );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->lowerRegion() );
     return Arr;
 }
 
 PyObject* IClpSimplex::getColLower(){
 
     npy_intp dims = getNumCols();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->columnLower() );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->columnLower() );
     return Arr;
 }
 
 PyObject* IClpSimplex::getColUpper(){
 
     npy_intp dims = getNumCols();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->columnUpper() );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->columnUpper() );
     return Arr;
 }
 
 PyObject* IClpSimplex::getColumnScale(){
 
     npy_intp dims = getNumCols();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE,  columnScale_);
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE,  columnScale_);
     return Arr;
 }
 
 PyObject* IClpSimplex::getRowScale(){
 
     npy_intp dims = getNumRows();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, rowScale_ );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, rowScale_ );
     return Arr;
 }
 
@@ -503,9 +503,9 @@ PyObject* IClpSimplex::getIntegerInformation(){
     npy_intp dims = getNumCols();
     PyObject* Arr;
     if (this->integerInformation())
-        Arr = PyArray_SimpleNewFromData(1, &dims, PyArray_INT8, this->integerInformation());
+        Arr = PyArray_SimpleNewFromData(1, &dims, NPY_INT8, this->integerInformation());
     else
-        Arr = PyArray_ZEROS(1, &dims, PyArray_INT8, 0);
+        Arr = PyArray_ZEROS(1, &dims, NPY_INT8, 0);
     return Arr;
 }
 
@@ -1391,7 +1391,7 @@ PyObject* IClpSimplex::filterVars(PyObject* inds){
     npy_intp inds_len = PyArray_DIM(inds, 0);
     if (inds_len == 0){
         npy_intp dims = 0;
-        PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_INT, tempIntArray );
+        PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_INT, tempIntArray );
         return Arr;
     }
     if (tempArrayExists == false)
@@ -1417,7 +1417,7 @@ PyObject* IClpSimplex::filterVars(PyObject* inds){
     }
 
     npy_intp dims = ind_count;
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_INT, tempIntArray );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_INT, tempIntArray );
     return Arr;
 
 }
diff --git a/cylp/cpp/ICoinIndexedVector.cpp b/cylp/cpp/ICoinIndexedVector.cpp
index 2b2c35f7..af4c352d 100644
--- a/cylp/cpp/ICoinIndexedVector.cpp
+++ b/cylp/cpp/ICoinIndexedVector.cpp
@@ -9,7 +9,7 @@ PyObject* ICoinIndexedVector::getIndicesNPArray(){
 
     npy_intp dims = this->getNumElements();
     PyObject *Arr = PyArray_SimpleNewFromData(1, &dims, 
-            PyArray_INT32, 
+            NPY_INT32, 
             this->getIndices());
     return Arr;
 }
@@ -18,7 +18,7 @@ PyObject* ICoinIndexedVector::getDenseVectorNPArray(){
 
     npy_intp dims = this->capacity();
     PyObject *Arr = PyArray_SimpleNewFromData(1, &dims, 
-            PyArray_DOUBLE, 
+            NPY_DOUBLE, 
             this->denseVector());
     return Arr;
 }
diff --git a/cylp/cpp/ICoinMpsIO.cpp b/cylp/cpp/ICoinMpsIO.cpp
index 2fdf8ce9..f74f75c8 100644
--- a/cylp/cpp/ICoinMpsIO.cpp
+++ b/cylp/cpp/ICoinMpsIO.cpp
@@ -88,7 +88,7 @@ double * ICoinMpsIO::IObjCoefficients() const
 PyObject* ICoinMpsIO::np_getColLower(){
 	npy_intp dims = this->getNumCols();
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->IColLower() );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->IColLower() );
 	return Arr;
 }
 
@@ -96,14 +96,14 @@ PyObject* ICoinMpsIO::np_getColLower(){
 PyObject* ICoinMpsIO::np_getColUpper(){
 	npy_intp dims = this->getNumCols();
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->IColUpper() );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->IColUpper() );
 	return Arr;
 }
 
 PyObject* ICoinMpsIO::np_getRowSense(){
 	npy_intp dims = this->getNumRows();
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_INT8, this->IRowSense() );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_INT8, this->IRowSense() );
 	return Arr;
 }
 
@@ -111,42 +111,42 @@ PyObject* ICoinMpsIO::np_getRowSense(){
 PyObject* ICoinMpsIO::np_getRightHandSide(){
 	npy_intp dims = this->getNumRows();
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->IRightHandSide() );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->IRightHandSide() );
 	return Arr;
 }
 
 PyObject* ICoinMpsIO::np_getRowRange(){
 	npy_intp dims = this->getNumRows();
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->IRowRange() );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->IRowRange() );
 	return Arr;
 }
 
 PyObject* ICoinMpsIO::np_getRowLower(){
 	npy_intp dims = this->getNumRows();
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->IRowLower() );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->IRowLower() );
 	return Arr;
 }
 
 PyObject* ICoinMpsIO::np_getRowUpper(){
 	npy_intp dims = this->getNumRows();
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->IRowUpper() );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->IRowUpper() );
 	return Arr;
 }
 
 PyObject* ICoinMpsIO::np_getObjCoefficients(){
 	npy_intp dims = this->getNumCols();
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->IObjCoefficients() );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->IObjCoefficients() );
 	return Arr;
 }
 
 PyObject* ICoinMpsIO::np_integerColumns(){
 	npy_intp dims = this->getNumCols();
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_INT8, this->IintegerColumns() );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_INT8, this->IintegerColumns() );
 	return Arr;
 }
 
@@ -154,21 +154,21 @@ PyObject* ICoinMpsIO::np_integerColumns(){
 PyObject* ICoinMpsIO::getQPColumnStarts(){
 	npy_intp dims = this->getNumCols() + 1;
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_INT32, d_colStart );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_INT32, d_colStart );
 	return Arr;
 }
 
 PyObject* ICoinMpsIO::getQPColumns(){
 	npy_intp dims = d_colStart[this->getNumCols()];
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_INT32, d_cols );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_INT32, d_cols );
 	return Arr;
 }
 
 PyObject* ICoinMpsIO::getQPElements(){
 	npy_intp dims = d_colStart[this->getNumCols()];
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, d_elements );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, d_elements );
 	return Arr;
 }
 
diff --git a/cylp/cpp/ICoinPackedMatrix.cpp b/cylp/cpp/ICoinPackedMatrix.cpp
index a3926e98..1696dd30 100644
--- a/cylp/cpp/ICoinPackedMatrix.cpp
+++ b/cylp/cpp/ICoinPackedMatrix.cpp
@@ -4,7 +4,7 @@ PyObject* ICoinPackedMatrix::np_getIndices(){
 
 	npy_intp dims = this->getNumElements();
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_INT32, this->IgetIndices() );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_INT32, this->IgetIndices() );
 	return Arr;
 }
 
@@ -12,7 +12,7 @@ PyObject* ICoinPackedMatrix::np_getElements(){
 
 	npy_intp dims = this->getNumElements();
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_DOUBLE, this->IgetElements() );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_DOUBLE, this->IgetElements() );
 	return Arr;
 }
 
@@ -20,7 +20,7 @@ PyObject* ICoinPackedMatrix::np_getMajorIndices(){
 
     npy_intp dims = this->getNumElements();
     _import_array();
-    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_INT32, this->getMajorIndices() );
+    PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_INT32, this->getMajorIndices() );
     return Arr;
 }
 
@@ -28,7 +28,7 @@ PyObject* ICoinPackedMatrix::np_getMajorIndices(){
 PyObject* ICoinPackedMatrix::np_getVectorStarts(){
 	npy_intp dims = this->getMajorDim() + 1;
 	_import_array();
-	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, PyArray_INT32, this->IgetVectorStarts() );
+	PyObject *Arr = PyArray_SimpleNewFromData( 1, &dims, NPY_INT32, this->IgetVectorStarts() );
 	return Arr;
 }