[numba]_fix_imports

[shlff]

Good morning, @jstac and @mmcky ,

I noticed an issue in lecture numba:

• the import from numba.experimental import jitclass is not working
• it returns an error message ModuleNotFoundError: No module named 'numba.experimental'

This PR fixes this issue by replacing

• the original imports from numba import float64 and from numba.experimental import jitclass
• with modified imports from numba import float64, jitclass

Do you think it is a good idea?

[jstac]

Good catch @shlff , nice work.

@mmcky I remember this change was made a few months back. Do you think it's an issue in some of our other lectures that use numba?

[mmcky]

@shlff are you testing this locally? You may want to update your anaconda if so.

It seems to be fine on the live site: https://python-programming.quantecon.org/numba.html

It should be numba.experimental to support future releases of numba

[shlff]

Thanks for your comments, @jstac and @mmcky .

As @mmcky suggested, I had this issue because the version of my numba is 0.48.0, while they relocate jitclass between versions 0.48 and 0.49.

Now I upgrade my numba, so this issue has been solved.

I will close this PR.