fixes #960: lazy import of launch_instance in top-level __init__.py

enterprise_gateway/__init__.py

@@ -1,5 +1,8 @@
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
-"""Entrypoint for the enterprise gateway package."""
-from .enterprisegatewayapp import launch_instance
 from ._version import __version__
+
+"""Lazy-loading entrypoint for the enterprise gateway package."""
+def launch_instance(*args, **kwargs):
+    from enterprise_gateway.enterprisegatewayapp import launch_instance
+    launch_instance(*args, **kwargs)

setup.py

@@ -43,9 +43,6 @@
         'enterprise_gateway.services.processproxies',
         'enterprise_gateway.services.sessions'
     ],
-    scripts=[
-        'scripts/jupyter-enterprisegateway'
-    ],
     install_requires=[
         'docker>=3.5.0',
         'future',
@@ -83,7 +80,7 @@
     # setupstools turns entrypoint scripts into executables on windows
     setup_args['entry_points'] = {
         'console_scripts': [
-            'jupyter-enterprisegateway = enterprise_gateway:launch_instance'
+            'jupyter-enterprisegateway = enterprise_gateway.enterprisegatewayapp:launch_instance'
         ]
     }
     # Don't bother installing the .py scripts if if we're using entrypoints