Explicit error message if no connection to IIASA manager service

IAMconsortium · Nov 3, 2023 · d29dc75 · d29dc75
1 parent 7325a37
commit d29dc75
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/pyam/iiasa.py b/pyam/iiasa.py
@@ -96,6 +96,10 @@ def __init__(self, creds: str = None, auth_url: str = _AUTH_URL):
                 f"{IXMP4_LOGIN} instead."
             )
 
+        # self.auth is None if connection to manager service cannot be established
+        if self.auth is None:
+            raise httpx.ConnectError("No connection to IIASA manager service.")
+
         # explicit token for anonymous login is not necessary for ixmp4 platforms
         # but is required for legacy Scenario Explorer databases
         if self.auth.user.username == "@anonymous":