Enhancement Add max_level param to json_normalize

[bhavaniravi]

• closes Configurable json_normalize with respect to number of levels and Keys to be flattened #23843
• closes Enhanced json normalize #23861
• tests added / passed
• passes git diff upstream/master -u -- "*.py" | flake8 --diff
• whatsnew entry

[jreback]

pls merge master as well

[jreback]

code & tests look good, can you add a note in whatsnew (other enhancements); also consider if we should update the docs in io.rst (adding an example using max_level)

[bhavaniravi]

code & tests look good, can you add a note in whatsnew (other enhancements); also consider if we should update the docs in io.rst (adding an example using max_level)

@jreback I assumed docstrings would generate the docs in pandas/doc folder, now I am anticipating that's not right. So should we manually add it with the ipython constructs?

[jreback]

code & tests look good, can you add a note in whatsnew (other enhancements); also consider if we should update the docs in io.rst (adding an example using max_level)

@jreback I assumed docstrings would generate the docs in pandas/doc folder, now I am anticipating that's not right. So should we manually add it with the ipython constructs?

I am requesting an entry in doc/source/whatsnew/v0.25.0.txt & any updates in io.rst that are needed

[WillAyd]

Looks like a remaining lint error but otherwise lgtm

[WillAyd]

lgtm - thanks for sticking through review

[bhavaniravi]

lgtm - thanks for sticking through review

My pleasure. I learned alot along the way. Thank you for being so patient with me.

[bhavaniravi]

@jreback @WillAyd What next? I am ready to open the next PR for ignore_keys once this is merged

[TomAugspurger]

Thanks @bhavaniravi!