Modified setup of matplotlib for Linux and Windows to force using QT5 backend. Problem is that with conda installed qt5/pyqt5 matplotlib still tries to use qt4 backend.

tests/benchmarking/plot_benchmark.py

@@ -1,7 +1,12 @@
 import argparse
 import os
+import sys
 
 import numpy as np
+import matplotlib
+# Make sure QT5 is used if not on Mac OS X
+if sys.platform != 'darwin':
+    matplotlib.use('Qt5Agg')
 import matplotlib.pyplot as plt
 import matplotlib.gridspec as gridspec
 

tests/test_compare_analytical.py

@@ -22,6 +22,10 @@ import sys
 
 import h5py
 import numpy as np
+import matplotlib
+# Make sure QT5 is used if not on Mac OS X
+if sys.platform != 'darwin':
+    matplotlib.use('Qt5Agg')
 import matplotlib.pyplot as plt
 import matplotlib.gridspec as gridspec
 

tests/test_compare_experimental.py

@@ -22,6 +22,10 @@ import sys
 
 import h5py
 import numpy as np
+import matplotlib
+# Make sure QT5 is used if not on Mac OS X
+if sys.platform != 'darwin':
+    matplotlib.use('Qt5Agg')
 import matplotlib.pyplot as plt
 
 from gprMax.exceptions import CmdInputError

tests/test_compare_numerical.py

@@ -21,7 +21,10 @@ import sys
 
 import h5py
 import numpy as np
-import matplotlib as mpl
+import matplotlib
+# Make sure QT5 is used if not on Mac OS X
+if sys.platform != 'darwin':
+    matplotlib.use('Qt5Agg')
 import matplotlib.pyplot as plt
 
 from tools.plot_fields import plot_Ascan