On Sunday, October 23, 2016 at 1:03:13 PM UTC-4, ahaus...@umassd.edu wrote:
>
> Hi the @interact command no longer seems to be working in Sage 7.3 and
> Sage 7.4 on an Mac Book Pro running El Capitan:
>
> Here is the contents I entered in an "Jupyter" notebook cell which I
> copied from a Sage interact example:
>
> -----------------------------------------------------------------------------------
> Contents of the sage 7.4 notebook cell:
> from ipywidgets import interact, interactive, fixed
> import ipywidgets as widgets
>
>
> @interact(num=5)
> def square(num=2):
> print "{} squared is {}".format(num, num*num)
>
> --------------------------------------------------------------------------------------------
>
> Here is the error output: displayed in the output cell:
>
> ------------------------------------------------------------------------------------------------------
> Traceback (most recent call last): print "{} squared is {}".format(num,
> num*num) File "", line 1, in <module> File
> "/private/var/folders/31/r_2f8ryd5ks7xb80nyrbj2cc0000gn/T/tmprIbuu6/___c
> \ ode___.py", line 8, in <module> def square(num=_sage_const_2 ): File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/ipywidgets/widgets/interaction.py", line 360, in dec
> return interact(f, **kwargs) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/ipywidgets/widgets/interaction.py", line 343, in
> interact w = interactive(f, **kwargs) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/ipywidgets/widgets/interaction.py", line 203, in
> interactive container = Box(_dom_classes=['widget-interact']) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/ipywidgets/widgets/widget_box.py", line 44, in
> __init__ super(Box, self).__init__(**kwargs) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/ipywidgets/widgets/domwidget.py", line 90, in
> __init__ super(DOMWidget, self).__init__(*pargs, **kwargs) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/ipywidgets/widgets/widget.py", line 184, in __init__
> self.open() File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/ipywidgets/widgets/widget.py", line 197, in open
> state, buffer_keys, buffers =
> self._split_state_buffers(self.get_state()) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/ipywidgets/widgets/widget.py", line 291, in
> get_state value = to_json(getattr(self, k), self) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/traitlets/traitlets.py", line 529, in __get__ return
> self.get(obj, cls) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/traitlets/traitlets.py", line 508, in get value =
> self._validate(obj, dynamic_default()) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/ipywidgets/widgets/domwidget.py", line 23, in
> _layout_default return Layout() File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/ipywidgets/widgets/widget.py", line 184, in __init__
> self.open() File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/ipywidgets/widgets/widget.py", line 203, in open
> self.comm = Comm(**args) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/ipykernel/comm/comm.py", line 63, in __init__
> self.open(data=data, metadata=metadata, buffers=buffers) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/ipykernel/comm/comm.py", line 94, in open
> comm_manager = getattr(self.kernel, 'comm_manager', None) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/traitlets/traitlets.py", line 529, in __get__ return
> self.get(obj, cls) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/traitlets/traitlets.py", line 508, in get value =
> self._validate(obj, dynamic_default()) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/traitlets/traitlets.py", line 564, in _validate
> value = self.validate(obj, value) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/traitlets/traitlets.py", line 1589, in validate
> self.error(obj, value) File
> "/Applications/SageMath-7.4.app/Contents/Resources/sage/local/lib/python
> \ 2.7/site-packages/traitlets/traitlets.py", line 1436, in error raise
> TraitError(e) traitlets.traitlets.TraitError: The 'kernel' trait of a
> Comm instance must be a Kernel, but a value of type 'NoneType' (i.e.
> None) was specified.
>
>
> ----------------------------------------------------------------------------------------------------------------
>
> Any ideas?
>
> Regards,
>
> Adam Hausknecht
> Department of Mathematics
> UMass Dartmouth
>
>
By changing the name of the .sage directory in my home directory and
restarting Sage 7.4, I noticed that Sage 7.4
opens the Terminal app and enters the line
ast login: Sun Oct 23 18:04:25 on ttys000
Adam314:~ ahausknecht$
'/Applications/SageMath-7.4.app/Contents/Resources/sage/sage'
--notebook=sagenb
which causes the old version of the notebook to start instead of the
Jupyter notebook. I changed the "sagenb" to "jupiter" and got the jupyter
notebook to start BUT now my old Sage notebook files are
missing from the notebook home page. Where are they saved and how can I
convert them to Jupyter notebooks?
--
You received this message because you are subscribed to the Google Groups
"sage-support" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to sage-support+unsubscr...@googlegroups.com.
To post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.
