From cce2a1dd4e7dc19cc78b9f3d5634f7db94e6ce9b Mon Sep 17 00:00:00 2001 From: Lumir Balhar Date: Tue, 28 May 2019 11:56:59 +0200 Subject: [PATCH] Fix SyntaxWarning: "is" with a literal. --- traitlets/config/loader.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/traitlets/config/loader.py b/traitlets/config/loader.py index 122a6d54..12d45923 100644 --- a/traitlets/config/loader.py +++ b/traitlets/config/loader.py @@ -918,7 +918,7 @@ def _add_arguments(self, aliases=None, flags=None, classes=None): if key in self.aliases: alias_flags[self.aliases[key]] = value continue - keys = ('-'+key, '--'+key) if len(key) is 1 else ('--'+key, ) + keys = ('-'+key, '--'+key) if len(key) == 1 else ('--'+key, ) paa(*keys, action=_FlagAction, flag=value) for keys, traitname in aliases.items(): @@ -943,7 +943,7 @@ def _add_arguments(self, aliases=None, flags=None, classes=None): argparse_kwds['action'] = _FlagAction argparse_kwds['flag'] = alias_flags[traitname] argparse_kwds['alias'] = traitname - keys = ('-'+key, '--'+key) if len(key) is 1 else ('--'+key, ) + keys = ('-'+key, '--'+key) if len(key) == 1 else ('--'+key, ) paa(*keys, **argparse_kwds) def _convert_to_config(self):