1 files changed, 8 insertions, 3 deletions
diff --git a/gn3/app.py b/gn3/app.py
index ffde223..da87f2b 100644
--- a/gn3/app.py
+++ b/gn3/app.py
@@ -3,6 +3,7 @@ import os
 import sys
 import logging
 import getpass
+import traceback
 
 from typing import Dict
 from typing import Union
@@ -48,9 +49,13 @@ def create_app(config: Union[Dict, str, None] = None) -> Flask:
 
     setup_app_handlers(app)
     # DO NOT log anything before this point
-    logging.info("Guix Profile: '%s'." % (os.environ.get("GUIX_PROFILE"),))
-    logging.info("Python Executable: '%s'." % sys.executable)
-    logging.info("Effective User: '%s'." % getpass.getuser())
+    logging.info("Guix Profile: '%s'.", os.environ.get("GUIX_PROFILE"))
+    logging.info("Python Executable: '%s'.", sys.executable)
+    try:
+        logging.info("Effective User: '%s'.", getpass.getuser())
+    except KeyError as kerr:
+        logging.debug("User Error: %s", kerr.args[0])
+        logging.error(traceback.format_exc())
 
     CORS(
         app,