Re: Issue with symbolic package on Octave 4.2.1 on windows 10 PC

[anoop joshi]

Hi Colin,

Looks like you are right about it being an issue associated with older Python 2.7 versions. I installed Python 2.7.14 and now it seems to run fine

Thanks,

Anoop

On Thu, Oct 5, 2017 at 2:30 AM, Colin Macdonald <address@hidden> wrote:

On 2017-10-04 12:58 PM, anoop joshi wrote:

Hi Colin,

For experiment 2 suggested by you, I followed the steps below:

 1. Uninstalled the existing Python 2.7 version in my PC.
 2. downloaded the file "symbolic-win-py-bundle-2.6.0.zip"
 3. started Octave, change folder to where your downloads are.
 4. typed |pkg install |"symbolic-win-py-bundle-2.6.0.zip"
 5. typed |pkg load symbolic|
 6. typed |syms x|

But then got the error "error: Cannot run the Python executable "C:\Python27\python.exe"
     Python and SymPy are needed for most Symbolic features.
     Is Python installed?  Is your "path" configured correctly?".

>

Is there some other step here?

Hmmm, that is using your system python instead of the bundled one.  Not
sure why!  I guess the environment variable (or equivalent on Windows) is still set to "C:\Python27\python.exe")?
Its Windows, did you reboot several times between the various steps? (excuse sarcasm).  Specifically after uninstalling Python.

I thought the bundled package prefers its own Python to the system one but I might be wrong about that.

After that I tried installing Python 3.63. CMD prompt shows the path is configured ok, but still syms x doesn't run

And the error is?

Given that we think the problem might be that your Python 2.7 is too old, is there a more recent Python 2.7 installer for your system (like 2.7.9 for example).  From my point of view, this is the most important thing to try.

--

Anoop Joshi Veliyath
Senior Design Engineer

Cadence Design Systems, Inc.

Ph:+919591326657