AttributeError: 'Legend' object has no attribute '_ncol'. Did you mean: '_ncols'?

[aiodfy]

When attempting to use Legends, the following error is presented.

AttributeError: 'Legend' object has no attribute '_ncol'. Did you mean: '_ncols'?

I quick search of the matplotlib docs showed that

The number of columns that the legend has.
For backward compatibility, the spelling ncol is also supported but it is discouraged. If both are given, ncols takes precedence

The Fix

_legends.py (Line 81)
Change
if obj._ncol != 1: data["current axes"].axis_options.append(f"legend columns={obj._ncol}")
to
if obj._ncols != 1: data["current axes"].axis_options.append(f"legend columns={obj._ncols}")

[FriedrichFroebel]

This duplicates (at least) #574, #565, #558 and #579 and just has not been merged yet.

[M-G-King]

I had this same issue, and fixed it the same way