setup: fix installation without extras

renga/cli/notebooks.py

@@ -21,7 +21,6 @@
 from binascii import hexlify
 
 import click
-from notebook.services.config import ConfigManager
 
 from renga.cli._options import option_endpoint
 
@@ -52,6 +51,8 @@ def notebooks():
 )
 def configure(url, client_id):
     """Configure the Jupyter server extension."""
+    from notebook.services.config import ConfigManager
+
     cm = ConfigManager()
     cm.update('renga.notebook.oic', {
         'client_id': client_id,

renga/cli/runner.py

@@ -27,8 +27,6 @@
 import pkg_resources
 import yaml
 
-from renga.notebook import generate_launch_args, generate_notebook_token
-
 from ._client import pass_local_client
 
 _GITLAB_CI = '.gitlab-ci.yml'
@@ -121,12 +119,13 @@ def default_base_url():
 )
 @click.option('--base-url', default=default_base_url)
 @click.option('--repo-url', envvar='CI_REPOSITORY_URL')
-@click.option(
-    '--token', envvar='RENGA_NOTEBOOK_TOKEN', default=generate_notebook_token
-)
+@click.option('--token', envvar='RENGA_NOTEBOOK_TOKEN', default=None)
 @pass_local_client
 def notebook(client, name, network, image, base_url, repo_url, token):
     """Launch notebook in a container."""
+    from renga.notebook import generate_launch_args, generate_notebook_token
+
+    token = token if token is not None else generate_notebook_token()
     try:
         call(['docker', 'rm', '--force', name])
     except Exception:

setup.py

@@ -77,6 +77,7 @@
     'gitpython>=2.1.8',
     'networkx>=2.1',
     'pyld>=0.8.2',
+    'python-dateutil>=2.6.1',
     'requests-oauthlib>=0.8.0',
     'requests>=2.18.4',
     'tabulate>=0.7.7',