commit b9101e3088b6543b6998c3514ef51efc83f7c5fc
author Jon Wayne Parrott <jonwayne@google.com> Mon Mar 06 12:26:10 2017 -0800
committer GitHub <noreply@github.com> Mon Mar 06 12:26:10 2017 -0800
tree ec2c9546ab35eb0e368829788c590ff7015686cc
parent 8170194b184331f8bb4c137fc44d1f40d88de881

Add helpful error messages when importing optional dependencies (#125)

google/oauth2/oauthlib.py

diff --git a/google/oauth2/oauthlib.py b/google/oauth2/oauthlib.py
index 8f5c105..e1c6089 100644
--- a/google/oauth2/oauthlib.py
+++ b/google/oauth2/oauthlib.py
@@ -27,7 +27,12 @@
 
 import json
 
-import requests_oauthlib
+try:
+    import requests_oauthlib
+except ImportError:  # pragma: NO COVER
+    raise ImportError(
+        'The requests-oauthlib library is not installed, please install the '
+        'requests-oauthlib package to use google.oauth2.oauthlib.')
 
 import google.oauth2.credentials