matplotlib 1.2 / pylab_examples example code: multiple_yaxis_with_spines.py

[edge-python]

Hallo,

the pylab_examples example code: multiple_yaxis_with_spines.py

works incorrect with matplotlib 1.2

(with matplotlib 1.1.0 o.k.)

please check it

Thank you

(i use python 2.7.4)

with matplotlib 1.2

with matplotlib 1.1

.
.
and this is the result in my program
.
with matplotlib 1.2

with matplotlib 1.1

[tacaswell]

I can confirm this with 1.3.x

[tacaswell]

The issue seems to be that repeated calls to host.twinx() returns the same object, which looks like a feature of figure.add_axes which it uses underneath.

[mdboom]

@tacaswell: Thanks for tracking that down. git bisect also tells me that the first bad commit is 687a6ef. @leejjoon: Any thoughts?

[tacaswell]

I also hit that commit just by looking at blame, and grew confused.

It looks like it should have never worked, and the fact that it was working in 1.1 is the bug. I would guess it is related to the _make_key code, which does not sort the keys in kwargs before turning them into a tuple, and the extra layer of making the function call.

[mdboom]

If I comment out the second _make_twin_axes function, (the one in SubplotBase, not the one in Axes) then it works for me -- I haven't run the test suite to see what that breaks, though.

EDIT: Corrected _make_key to _make_twin_axes.

[tacaswell]

_make_key or _make_twin_axes?

[mdboom]

Sorry, I mistyped. I meant _make_twin_axes.

[leejjoon]

The commit was part of #1169. So, I guess it is better to fix the method rather than remove it.

[edge-python]

Hallo,

thank you for fix the problem.

With the new code in axes.py matplotlib 1.21 my program works well !

edge-python