[inventory_dynamics] Code updates to inventory lecture

[jstac]

Switches from namedtuple to class(NamedTuple) for nicer, cleaner syntax.

Adds typing.

Simplifies the fori_loop discussion by removing the option of generating all shocks at once (which doesn't help much and requires more memory).

The coding style changes can be used as a model for updates to other lectures.

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[mmcky]

The build is failing as it requires quantecon package to be installed.

ModuleNotFoundError�[0m: No module named 'quantecon' 

@jstac I have just added this into this PR.

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[jstac]

Thanks @mmcky .

Is the numba warning after the imports caused by QE? We are using tic and toc. One quick work-around would be from time import time -- @HumphreyYang knows the style we normally use.

Should we suppress output after the pip install?

[mmcky]

Suggested change

	!pip install quantecon
	:tags: [hide-output]
	!pip install quantecon

[mmcky]

thanks @jstac good call. I can take a look tomorrow at the numba warning 👍

[jstac]

Thanks @mmcky :-)

[jstac]

Is the numba warning after the imports caused by QE?

I guess that's something we'll need to get to the bottom of as well 😬

[mmcky]

Is the numba warning after the imports caused by QE?

I guess that's something we'll need to get to the bottom of as well 😬

@jstac we had fixed this issue prior. Might be just jax environment. Will check.

[HumphreyYang]

Many thanks @jstac and @mmcky,

I think the warning is related to the version of the package tbb (see here) and is caused by numba upstream.

I just pushed a commit following @jstac's suggestion:

One quick work-around would be from time import time

[jstac]

Thanks @HumphreyYang !

This is looking good. Green light from me.

[HumphreyYang]

Many thanks @jstac for confirming!