Installation of octsympy of Octave: error even after OK sympref diagnose

问题

I am finding problems with the installation of the symbolic package octsympy of Octave.

I have GNU Octave Version 5.2.0 under Windows 10. I have python3 installed with Anaconda.

I have followed the following steps:

1. Download the file symbolic-2.9.0.tar.gz.
2. Install with pkg install symbolic-2.9.0.tar.gz.
3. pkg load symbolic.
4. setenv PYTHON C:\Users\...\Anaconda3\python.
5. sympref diagnose.

After the last command, I receive the message: Your kit looks good for running the Symbolic package.

However, when I try any symbolic command such as sym('1/2'), I receive error messages:

AttributeError: module 'sympy.core.compatibility' has no attribute 'integer_types'

error: Python exception: AttributeError: module 'sympy.core.compatibility' has no attribute 'integer_types' occurred while copying variables to Python.

error: called from pycall_sympy__ at line 191 column 5; sym at line 484 column 11

Can anyone help to solve this problem? Thank you.

回答1:

This issue has been reported as a bug: https://github.com/cbm755/octsympy/issues/1023. The developer indicated that it will be fixed in a new release.

If this issue is urgent, the solution is to downgrade the version of SymPy.

If this issue is not urgent, an option is to wait for a new release of octsympy.

来源：https://stackoverflow.com/questions/64614076/installation-of-octsympy-of-octave-error-even-after-ok-sympref-diagnose