[IPython-dev] octavemagic failed

[Thomas Kluyver]

Hi Stephan,

Octavemagic is now part of Oct2py - try loading the extension as %load_ext
oct2py.ipython to get the latest version. If you still see the error, file
a bug with oct2py.

Thanks,
Thomas

On 9 September 2014 10:32, Stephan Sahm <Stephan.Sahm at gmx.de> wrote:

> Dear all,
>
> I use ipython for some years up to now but today it was the first time I
> tried the octavemagic -- and unfortunately almost everything failed.
> (copied from my ipython notebook session:)
>
> %load_ext octavemagic  # works
>
> import oct2py
> o = oct2py.Oct2Py()
> x = o.eval('[1; 2; 3]')
> print x
>
> # works too, output= [[ 1.]
>  [ 2.]
>  [ 3.]]
>
> # but...
>
>
> x = %octave [1 2; 3 4];  # fails
>
> ​
> The ErrorMessage is the following:
>
> IndexError                                Traceback (most recent call last)<ipython-input-7-37126fd10549> in <module>()----> 1 x = get_ipython().magic(u'octave [1 2; 3 4];')
> /usr/local/lib/python2.7/dist-packages/IPython/core/interactiveshell.pyc in magic(self, arg_s)   2203         magic_name, _, magic_arg_s = arg_s.partition(' ')   2204         magic_name = magic_name.lstrip(prefilter.ESC_MAGIC)-> 2205         return self.run_line_magic(magic_name, magic_arg_s)   2206    2207     #-------------------------------------------------------------------------
> /usr/local/lib/python2.7/dist-packages/IPython/core/interactiveshell.pyc in run_line_magic(self, magic_name, line)   2124                 kwargs['local_ns'] = sys._getframe(stack_depth).f_locals   2125             with self.builtin_trap:-> 2126                 result = fn(*args,**kwargs)   2127             return result   2128
> /usr/local/lib/python2.7/dist-packages/IPython/extensions/octavemagic.pyc in octave(self, line, cell, local_ns)
> /usr/local/lib/python2.7/dist-packages/IPython/core/magic.pyc in <lambda>(f, *a, **k)    191     # but it's overkill for just that one bit of state.    192     def magic_deco(arg):--> 193         call = lambda f, *a, **k: f(*a, **k)    194     195         if callable(arg):
> /usr/local/lib/python2.7/dist-packages/IPython/extensions/octavemagic.pyc in octave(self, line, cell, local_ns)    327         except (oct2py.Oct2PyError) as exception:    328             msg = exception.message--> 329             msg = msg.split('# ___<end_pre_call>___ #')[1]    330             msg = msg.split('# ___<start_post_call>___ #')[0]    331             raise OctaveMagicError('Octave could not complete execution.  '
>
>
> IndexError: list index out of range
>
> ​​
> ​​
> ​using the cell-octave-magic ​
>
> %%octave -s 600,200 -f png
> sombrero()
>
>
> the following related ErrorMessage is thrown:
>
> IndexError                                Traceback (most recent call last)<ipython-input-9-68806585bb19> in <module>()----> 1 get_ipython().run_cell_magic(u'octave', u'-s 600,200 -f png', u'sombrero()')
> /usr/local/lib/python2.7/dist-packages/IPython/core/interactiveshell.pyc in run_cell_magic(self, magic_name, line, cell)   2160             magic_arg_s = self.var_expand(line, stack_depth)   2161             with self.builtin_trap:-> 2162                 result = fn(magic_arg_s, cell)   2163             return result   2164
> /usr/local/lib/python2.7/dist-packages/IPython/extensions/octavemagic.pyc in octave(self, line, cell, local_ns)
> /usr/local/lib/python2.7/dist-packages/IPython/core/magic.pyc in <lambda>(f, *a, **k)    191     # but it's overkill for just that one bit of state.    192     def magic_deco(arg):--> 193         call = lambda f, *a, **k: f(*a, **k)    194     195         if callable(arg):
> /usr/local/lib/python2.7/dist-packages/IPython/extensions/octavemagic.pyc in octave(self, line, cell, local_ns)    327         except (oct2py.Oct2PyError) as exception:    328             msg = exception.message--> 329             msg = msg.split('# ___<end_pre_call>___ #')[1]    330             msg = msg.split('# ___<start_post_call>___ #')[0]    331             raise OctaveMagicError('Octave could not complete execution.  '
> IndexError: list index out of range
>
>
>
> ​I have the following version installed
>
> oct2py : 2.1​
> ipython : 2.2
> octave : 3.8.1-1ubuntu1
>
> ​
> I use Ubuntu 14.04 and installed octave via apt-get, oct2py and ipython
> via pip​
>
> Can anyone help me?
> Of course I would be glad if this is only a small failure and can be fixed
> soon
>
> Hoping for your help,
>
> Stephan
> ​​
> ​​
> ​​
>
>
>
>
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>
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