Update main.py

main.py

@@ -26,8 +26,8 @@ oauth = OAuth()
 # Configure OAuth registry
 oauth.register(
     name='google',
-    client_id='YOUR_CLIENT_ID',
-    client_secret='YOUR_CLIENT_SECRET',
+    client_id=os.environ['GOOGLE_CLIENT_ID'],
+    client_secret=os.environ['GOOGLE_CLIENT_SECRET'],
     access_token_url='https://accounts.google.com/o/oauth2/token',
     authorize_url='https://accounts.google.com/o/oauth2/auth',
     authorize_params=None,