From c027b51d56570173d21b305a4f58dfaf1a721d07 Mon Sep 17 00:00:00 2001 From: Kostis Anagnostopoulos Date: Tue, 31 Jan 2017 16:11:34 +0100 Subject: [PATCH] fix(conf): explain which singleton is already instanciated --- traitlets/config/configurable.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/traitlets/config/configurable.py b/traitlets/config/configurable.py index 0d074bb4..71072fd6 100644 --- a/traitlets/config/configurable.py +++ b/traitlets/config/configurable.py @@ -505,8 +505,8 @@ def instance(cls, *args, **kwargs): return cls._instance else: raise MultipleInstanceError( - 'Multiple incompatible subclass instances of ' - '%s are being created.' % cls.__name__ + "An incompatible sibling of '%s' is already instanciated" + " as singleton: %s" % (cls.__name__, type(cls._instance).__name__) ) @classmethod