Disabled ignore callback error in Emitter Groups, for vispy to terminate the program when some error occurs. commit-credits: Mark :p

Author: tushar5526

.github/workflows/sanityTesting.yml

@@ -20,12 +20,7 @@ jobs:
           python -m pip install --upgrade pip
           pip install wheel
           pip install .
-#      - name: Set env
-#        # TODO: Find an alternate way to get the path, instead of hard-coding
-#        run: echo "PYTHONPATH=$PYTHONPATH:${HOME}/work/p5" >> $GITHUB_ENV
-#      - name: Test
-#        run: echo $PYTHONPATH
-      - name: Setup virtual frame buffer
+      - name: Run headless tests
         uses: GabrielBB/xvfb-action@v1
         with:
           run: python p5/visualTests/sanity_testing.py

p5/sketch/Vispy2DRenderer/base.py

@@ -67,13 +67,15 @@ def __init__(self, setup_method, draw_method,
             resizable=True,
         )
 
+        self.events.ignore_callback_errors = False
         self.setup_method = setup_method
         self.draw_method = draw_method
 
         self.looping = None
         self.redraw = None
         self.setup_done = False
         self.timer = app.Timer(1.0 / frame_rate, connect=self.on_timer)
+        self.timer.events.ignore_callback_errors = False
 
         self.handlers = dict()
         for handler_name in handler_names:

p5/visualTests/Instructions.md

@@ -3,10 +3,8 @@
 python sanity_testing.py
 ```
 
-**NOTE**: If you get a `ModuleNotFound or ImportError` make sure you export the `project's root path` to `PYTHONPATH` variable.
+**NOTE**: If you get a `ModuleNotFound or ImportError` make sure install the project using 
 
 ```
-export PYTHONPATH=$PYTHONPATH:path/to/project"
-```
-
-Or you could either use [rootpath](https://pypi.org/project/rootpath/) to find the project's rootpath and then export the path.
+pip install path/to/p5
+```