I'm trying to write python notebook code that can be run from databricks web ui or from airflow. I intend to pass parameters from airflow via the job api using

notebook_params

. From what I understand, these are accessible as widget values.

dbutils.widgets.get

does not appear to accept a default value option so I assume I'll just have to catch an exception in case there isn't a value available. The code thrown on the UI (

InputWidgetNotDefined

) doesn't appear to work when I try catching it:

try:
  test_val = dbutils.widgets.get("test_name")
except InputWidgetNotDefined:
  test_val = "some default value"
print(test_val)

I can do a general, empty

except:

which will work but is generally bad practice to do blanket catches if we can avoid it.

try:
  test_val = dbutils.widgets.get("test_name")
except:
  test_val = "some default value"
print(test_val)

So is there a more precise exception I can catch?