7824: Log errors when trying to read the collection specified.

diff --git a/sdk/python/arvados/commands/get.py b/sdk/python/arvados/commands/get.py
index 2d3af974bf3ec605b6eea90a5573c095c2813156..bf084419ef09e82b616ae2caef455fd6d6788ed3 100755 (executable)
--- a/sdk/python/arvados/commands/get.py
+++ b/sdk/python/arvados/commands/get.py
@@ -135,7 +135,11 @@ def main(arguments=None, stdout=sys.stdout, stderr=sys.stderr):
     get_prefix = r.group(2)
     if args.r and not get_prefix:
         get_prefix = os.sep
-    reader = arvados.CollectionReader(collection, num_retries=args.retries)
+    try:
+        reader = arvados.CollectionReader(collection, num_retries=args.retries)
+    except Exception as error:
+        logger.error("failed to read collection: {}".format(error))
+        return 1
 
     if not get_prefix:
         if not args.n: