TL: avoided clashing name, gitignore update

Author: tlunet

.gitignore

@@ -11,6 +11,7 @@ step_*.png
 *_data.json
 !_dataRef.json
 *.pysdc
+*.vtr
 
 # Created by https://www.gitignore.io
 

pySDC/helpers/vtk.py renamed to pySDC/helpers/vtkIO.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 """
-Helper functions to write and read fields from VTK files (to be used with Paraview or PyVista)
+Helper functions for VTK files IO (to be used with Paraview or PyVista)
 """
 import os
 import vtk

pySDC/tests/test_helpers/test_vtk.py

@@ -7,7 +7,7 @@
 @pytest.mark.parametrize("nX", [1, 5, 16])
 @pytest.mark.parametrize("nVar", [1, 2, 3])
 def testVTR(nVar, nX, nY, nZ):
-    from pySDC.helpers.vtk import writeToVTR, readFromVTR
+    from pySDC.helpers.vtkIO import writeToVTR, readFromVTR
 
     data1 = np.random.rand(nVar, nX, nY, nZ)
     coords1 = [np.sort(np.random.rand(n)) for n in [nX, nY, nZ]]