conforming arg order

Author: j042

gustaf/io/meshio.py

@@ -84,7 +84,7 @@ def load(fname):
     return meshes[0] if len(meshes) == 1 else meshes
 
 
-def export(mesh, fname, submeshes=None, **kwargs):
+def export(fname, mesh, submeshes=None, **kwargs):
     """Export mesh elements and vertex data into meshio and use its write
     function. The definition of submeshes with identical vertex coordinates
     is possible. In that case vertex numbering and data from the main mesh
@@ -164,7 +164,10 @@ def export(mesh, fname, submeshes=None, **kwargs):
 
     cells = []
     # Merge main mesh and submeshes in one list
-    meshes = [mesh]
+    if not isinstance(mesh, list):
+        meshes = [mesh]
+    else:
+        meshes = mesh
     if submeshes is not None:
         meshes.extend(submeshes)