change from float to numbers.real

[RahilJain1366]

Hi @mhucka

I found instance(..., float) in all the files committed in the PR. I changed it to numbers.real. Is there anything else which I would need to change on this? I was able to see these files broadly over the codebase.

Could please review and let me know if any further changes are required. I had run pytest for each individual .py file and it was successful.

Thanks, Rahil Jain