mpmath package version

[tschimben]

Hi,

when following the tutorial for setting up executorch (https://pytorch.org/executorch/stable/getting-started-setup.html) the command

python3 -m examples.portable.scripts.export --model_name="add"

results in an error

AttributeError: module 'mpmath' has no attribute 'rational'.

This is because the actual newest version of the package is 1.4.0. I resolved it by specifically installing version 1.3.0 by running

pip install mpmath==1.3.0.

[mergennachin]

Should be handled by #3593