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fix for default value changes in ipython/traitlets/pull/332

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Ryan Morshead 2016-11-02 11:48:06 -07:00
parent 64d996f820
commit 15a37c9ba7
1 changed files with 1 additions and 1 deletions
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notebook/services/contents/manager.py
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@ -74,7 +74,7 @@ class ContentsManager(LoggingConfigurable):
help="The base name used when creating untitled directories."
)
pre_save_hook = Any(None, config=True,
pre_save_hook = Any(None, config=True, allow_none=True,
help="""Python callable or importstring thereof
To be called on a contents model prior to save.