I'm sorry, I forgot to mention this step:
load_session('leaf_chamber_eqs_PM.sobj')
(as opposed to a = load('leaf_chamber_eqs_PM.sobj')
My apologies!
Cheers
Stan
On Thursday, September 8, 2016 at 3:53:57 PM UTC+2, vdelecroix wrote:
>
> The download link is
>
>
> https://cloud.sagemath.com/34b4b62a-2621-47c8-9bda-cde3a855f995/raw/leaf_chamber_eqs_PM.sobj
>
>
> (the link by the OP is a HTML page that displays the content of the file)
>
> There seems to be a problem with the content of your
> leaf_chamber_eqs_PM.sobj file. Namely the dictionary is in some invalid
> state.
>
> sage: a = load('/tmp/leaf_chamber_eqs_PM.sobj')
> sage: type(a) # this should not fail!!
> <type 'dict'>
> ---------------------------------------------------------------------------
>
> TypeError Traceback (most recent call
> last)
> <ipython-input-7-5228b2754e89> in <module>()
> ----> 1 type(a)
>
> ...IPython/core/displayhook.pyc in __call__(self, result)
> 244 self.start_displayhook()
> 245 self.write_output_prompt()
> --> 246 format_dict, md_dict =
> self.compute_format_data(result)
> 247 self.update_user_ns(result)
> 248 self.fill_exec_result(result)
>
> .../IPython/core/displayhook.pyc in compute_format_data(self, result)
> 148
> 149 """
> --> 150 return self.shell.display_formatter.format(result)
> 151
> 152 # This can be set to True by the write_output_prompt method
> in a subclass
>
> .../sage/repl/display/formatter.pyc in format(self, obj, include, exclude)
> 158 # First, use Sage rich output if there is any
> 159 PLAIN_TEXT = u'text/plain'
> --> 160 sage_format, sage_metadata = self.dm.displayhook(obj)
> 161 assert PLAIN_TEXT in sage_format, 'plain text is always
> present'
> 162 if sage_format.keys() != [PLAIN_TEXT]:
>
> TypeError: 'NoneType' object is not iterable
>
> Vincent
>
> On 08/09/16 15:42, Stan wrote:
> > Dear all,
> >
> > I am on debian jessy 64bit and after installing sage 7.3 I keep getting
> > segfault for the same worksheets that run smoothly in sage 6.8. I have
> now
> > managed to isolate a small example, which I uploaded to cloud.sagemath,
> > where it does not give a segfault message, but just runs forever. To use
> > locally, download this file:
> >
> >
> https://cloud.sagemath.com/projects/34b4b62a-2621-47c8-9bda-cde3a855f995/files/leaf_chamber_eqs_PM.sobj
>
> >
> > then run the following code in a sagenb notebook:
> > vdict = cdict.copy()
> > vdict[a_s] = 1
> > vdict[L_l] = 0.07
> > vdict[P_a] = 101325
> > vdict[P_wa] = 20/1000*101325
> > vdict[R_s] = 400
> > vdict[Re_c] = 3000
> > vdict[T_a] = 273+30
> > vdict[T_w] = vdict[T_a]
> > vdict[g_sw] = 0.15/40
> > vdict[v_w] = 1.
> > vdict[nu_a] = eq_nua.rhs().subs(vdict)
> > print eq_Re.subs(vdict)
> >
> > Here are the error messages I get in the terminal:
> >
> > 2016-09-08T15:04:22+0200 [stdout#info] raise
> > NoFunctionNameInFrameError()
> > 2016-09-08T15:04:22+0200 [stdout#info] NoFunctionNameInFrameError: C
> > function name could not be determined in the current C stack frame
> > 2016-09-08T15:04:22+0200 [stdout#info] close failed in file object
> > destructor:
> > 2016-09-08T15:04:22+0200 [stdout#info] IOError: [Errno 9] Bad file
> > descriptor
> > 2016-09-08T15:04:22+0200 [stdout#info]
> > 2016-09-08T15:04:22+0200 [stdout#info] Saved trace to
> > .../.sage/crash_logs/crash_XdQCv0.log
> > 2016-09-08T15:04:22+0200 [stdout#info]
> > ------------------------------------------------------------------------
> > 2016-09-08T15:04:22+0200 [stdout#info] Unhandled SIGABRT: An abort()
> > occurred.
> > 2016-09-08T15:04:22+0200 [stdout#info] This probably occurred because a
> > *compiled* module has a bug
> > 2016-09-08T15:04:22+0200 [stdout#info] in it and is not properly wrapped
> > with sig_on(), sig_off().
> > 2016-09-08T15:04:22+0200 [stdout#info] Python will now terminate.
> > 2016-09-08T15:04:22+0200 [stdout#info]
> > ------------------------------------------------------------------------
> >
> > I'm sure the example could be simplified much more, but I hope this
> helps
> > to track down the problem. The worksheet can also be found on
> > cloud.sagemath:
> >
> >
> https://cloud.sagemath.com/projects/34b4b62a-2621-47c8-9bda-cde3a855f995/files/sigsegv_7.3.sagews
>
> >
>
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