add pkgutil-style

Signed-off-by: lu-wang-dl <[email protected]>

Author: lu-wang-dl

src/databricks/__init__.py

@@ -0,0 +1,4 @@
+# https://packaging.python.org/guides/packaging-namespace-packages/#pkgutil-style-namespace-packages
+# This file should only contain the following line. Otherwise other sub-packages databricks.* namespace
+# may not be importable.
+__path__ = __import__("pkgutil").extend_path(__path__, __name__)