OAuth2 support in depot_tools

third_party/google_api_python_client/apiclient/__init__.py

+"""Retain apiclient as an alias for googleapiclient."""
+
+import googleapiclient
+
+try:
+  import oauth2client
+except ImportError:
+  raise RuntimeError(
+      'Previous version of google-api-python-client detected; due to a '
+      'packaging issue, we cannot perform an in-place upgrade. To repair, '
+      'remove and reinstall this package, along with oauth2client and '
+      'uritemplate. One can do this with pip via\n'
+      '  pip install -I google-api-python-client'
+  )
+
+from googleapiclient import channel
+from googleapiclient import discovery
+from googleapiclient import errors
+from googleapiclient import http
+from googleapiclient import mimeparse
+from googleapiclient import model
+from googleapiclient import sample_tools
+from googleapiclient import schema
+
+__version__ = googleapiclient.__version__
+
+_SUBMODULES = {
+    'channel': channel,
+    'discovery': discovery,
+    'errors': errors,
+    'http': http,
+    'mimeparse': mimeparse,
+    'model': model,
+    'sample_tools': sample_tools,
+    'schema': schema,
+}
+
+import sys
+for module_name, module in _SUBMODULES.iteritems():
+  sys.modules['apiclient.%s' % module_name] = module