Pyvista 0.40 warnings (#280)

* fixing import warning

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Removing unused import

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

ansys/mapdl/reader/__init__.py

@@ -3,7 +3,12 @@
 import appdirs
 
 # Per contract with Sphinx-Gallery, this method must be available at top level
-from pyvista.utilities.sphinx_gallery import _get_sg_image_scraper
+try:
+    # for pyvista >= 0.40
+    from pyvista.plotting.utilities import _get_sg_image_scraper
+except ImportError:
+    from pyvista.utilities.sphinx_gallery import _get_sg_image_scraper
+
 
 from ansys.mapdl.reader import examples
 from ansys.mapdl.reader._version import __version__

ansys/mapdl/reader/misc.py

@@ -6,7 +6,13 @@
 
 import numpy as np
 import pyvista
-from pyvista.utilities.errors import GPUInfo
+
+try:
+    # for pyvista >= 0.40
+    from pyvista.report import GPUInfo
+except ImportError:
+    from pyvista.utilities.errors import GPUInfo
+
 import scooby