Rename databricks.py to databricks_notebook.py

[nobutoba]

Background

Currently, running the driver notebook classification/notebooks/jupyter.ipynb leads to various errors because the databricks namespace mistakenly resolves to classification/notebooks/databricks.py, a module in the same directory.

classification/notebooks/
├── databricks.py
└── jupyter.ipynb

In contrast, the regression template avoids this issue by naming the Databricks driver notebook databricks_notebook.py:

regression/notebooks/
├── databricks_notebook.py
└── jupyter.ipynb

Solution

A simple way to fix this would be to rename classification/notebooks/databricks.py to classification/notebooks/databricks_notebook.py while keeping its content unchanged.