Merge pull request #77 from mwcraig/fix-qt-error

Fix logic in check for python version

.gitignore

@@ -28,6 +28,9 @@ var/
 
 !vpython/lib
 
+# Notebook stuff
+.ipynb_checkpoints
+
 # PyInstaller
 #  Usually these files are written by a python script from a template
 #  before PyInstaller builds the exe, so as to inject date/other infos into it.

Demos_no_notebook/qt.py

@@ -0,0 +1,3 @@
+from vpython import *
+set_browser(type='pyqt')
+b = box()

vpython/no_notebook.py

@@ -249,7 +249,7 @@ def onClose(self, wasClean, code, reason):
         raise RuntimeError('The pyqt browser cannot be used on Windows. '
                            'Please use the default browser instead by '
                            'removing set_browser("pyqt") from your code.')
-    elif sys.version_info.major == 3 and sys.version_info.minor >= 7:
+    elif sys.version_info.major == 3 and sys.version_info.minor >= 8:
         raise RuntimeError('The pyqt browser cannot be used on Python 3.8. '
                            'Please use the default browser instead by '
                            'removing set_browser("pyqt") from your code.')