revert to use in-lecture option using kaleido to install chrome

Author: mmcky

.github/workflows/ci.yml

@@ -26,12 +26,12 @@ jobs:
           pip install --upgrade "jax[cuda12-local]==0.6.2"
           pip install numpyro pyro-ppl
           python scripts/test-jax-install.py
-      - name: Install Chrome
-        shell: bash -l {0}
-        run: |
-          wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb     
-          sudo apt install -y ./google-chrome-stable_current_amd64.deb
-          google-chrome --version
+      # - name: Install Chrome
+      #   shell: bash -l {0}
+      #   run: |
+      #     wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb     
+      #     sudo apt install -y ./google-chrome-stable_current_amd64.deb
+      #     google-chrome --version
       - name: Check nvidia Drivers
         shell: bash -l {0}
         run: nvidia-smi

lectures/back_prop.md

@@ -23,6 +23,17 @@ In addition to what's included in base Anaconda, we need to install the followin
 
 !pip install -U kaleido plotly
 !conda install -y -c plotly plotly-orca
+
+# kaleido needs chrome to build images
+import kaleido
+kaleido.get_chrome_sync()
+```
+
+```{note}
+If you are running this on Google Colab the above cell will 
+present an error. This is because Google Colab doesn't use Anaconda to manage
+the Python packages. However this lecture will still execute as Google Colab
+has `plotly` installed.
 ```
 
 We also need to install JAX to run this lecture
@@ -35,15 +46,7 @@ We also need to install JAX to run this lecture
 
 ```{code-cell} ipython3
 import jax
-## to check that gpu is activated in environment
-print(f"JAX backend: {jax.devices()[0].platform}")
-```
-
-```{note}
-If you are running this on Google Colab the above cell will 
-present an error. This is because Google Colab doesn't use Anaconda to manage
-the Python packages. However this lecture will still execute as Google Colab
-has `plotly` installed.
+print(f"JAX backend: {jax.devices()[0].platform}") # to check that gpu is activated in environment
 ```
 
 ## Overview