[IPython-user] ERROR: Internal Python error in the inspect module.

Ryan Krauss ryanlists at gmail.com
Mon Oct 17 14:59:49 CDT 2005

I found it.  I went through the code with the pdb and realized I was
forgetting that a=b just creates a reference for a complex data type. 
It seems like the underlying problem is that I ended up trying to plot
2 vectors of different lengths using pylab.semilogx(x,y).  I was
truncating vector y each time I ran the file.  This error message just
made the whole thing seem catastrophic.

On 10/17/05, Ryan Krauss <ryanlists at gmail.com> wrote:
> I have a script that runs fine the first time and then if I run it
> again (without modification) I get this error:
> In [3]:run thetafb.py
> ERROR: Internal Python error in the inspect module.
> Below is the traceback from this internal error.
> Traceback (most recent call last):
>   File "../../ipython/usr/lib/python2.4/site-packages/IPython/ultraTB.py",
> line 434, in text
>   File "/usr/lib/python2.4/inspect.py", line 811, in getinnerframes
>     framelist.append((tb.tb_frame,) + getframeinfo(tb, context))
>   File "/usr/lib/python2.4/inspect.py", line 775, in getframeinfo
>     lines, lnum = findsource(frame)
>   File "/usr/lib/python2.4/inspect.py", line 437, in findsource
>     if pat.match(lines[lnum]): break
> IndexError: list index out of range
> Unfortunately, your original traceback can not be constructed.
> WARNING: Failure executing file: <thetafb.py>
> ==================================
> The script is still under development, so I need to run it many times
> with incremental changes.  Any idea where to look for what is causing
> this error?  (I don't know if I can take it apart enough to submit a
> simple example that recreates the problem).
> Ryan

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