Changed testing python version to server version

bin/testing.py

@@ -12,7 +12,7 @@ It additionally installs all dependencies from a '../requirements.txt' via pip.
 Use command line argument '-w' to run on windows.
 '''
 
-PY = sys.argv[2] if (len(sys.argv) > 1 and sys.argv[1] == '-py') else 'python' # use -py to use your own python command
+PY = sys.argv[2] if (len(sys.argv) > 1 and sys.argv[1] == '-py') else 'python3.7' # use -py to use your own python command
 COVERAGE = "coverage run --append --omit=*/site-packages*"
 ROOT = pathlib.Path(__file__).parent.parent.absolute()
 REPORTS = ROOT / 'reports'