GuillermoAbadLopez commented 1 month ago

Problem:

Using:

cma==3.3.0
matplotlib==3.9.0

Got the error:

File "/home/.../site-packages/cma/logger.py", line 916, in plot_axes_scaling
    color = iter(pyplot.cm.get_cmap('plasma_r')(
AttributeError: module 'matplotlib.cm' has no attribute 'get_cmap'

And checking `matplotlib` documentation, they did this change in their 3.9 update:

Screenshot 2024-08-12 at 19 14 52

Checking your code, I see you call: `pyplot.cm.get_cmap(...)` at least 3 times in the file:

https://github.com/CMA-ES/pycma/blob/development/cma/logger.py

Solution for new version:

I guess you just need to change the call `pyplot.cm.get_cmap(...)` into:

pyplot.get_cmap(...)
which will work both for older (<3.9) and newer (>=3.9) versions!

For `>=3.9` there is also these other options:

matplotlib.colormaps[name]
matplotlib.cm.ColormapRegistry.get_cmap(...)

But of course, those would not suffice, since then they will not work for older versions (`<3.9`)...

Found this commit useful: https://github.com/matplotlib/matplotlib/commit/ef6fa3da7e3a2d71b0bf241fc95152df971c64aa

GuillermoAbadLopez commented 1 month ago

@nikohansen Addressing Issue in PR: https://github.com/CMA-ES/pycma/pull/257

GuillermoAbadLopez commented 1 month ago

Thanks! Solved, with merging of the PR ✅

CMA-ES / pycma

`cma.plot()` not working for `matplotlib==3.9` update #256

Problem:

Using:

Got the error:

And checking `matplotlib` documentation, they did this change in their 3.9 update:

Checking your code, I see you call: `pyplot.cm.get_cmap(...)` at least 3 times in the file:

Solution for new version:

I guess you just need to change the call `pyplot.cm.get_cmap(...)` into:

which will work both for older (`<3.9`) and newer (`>=3.9`) versions!

For `>=3.9` there is also these other options:

But of course, those would not suffice, since then they will not work for older versions (`<3.9`)...

Found this commit useful: https://github.com/matplotlib/matplotlib/commit/ef6fa3da7e3a2d71b0bf241fc95152df971c64aa

CMA-ES / pycma

`cma.plot()` not working for `matplotlib==3.9` update #256

Problem:

Using:

Got the error:

And checking matplotlib documentation, they did this change in their 3.9 update:

Checking your code, I see you call: pyplot.cm.get_cmap(...) at least 3 times in the file:

Solution for new version:

I guess you just need to change the call pyplot.cm.get_cmap(...) into:

which will work both for older (<3.9) and newer (>=3.9) versions!

For >=3.9 there is also these other options:

But of course, those would not suffice, since then they will not work for older versions (<3.9)...

Found this commit useful: https://github.com/matplotlib/matplotlib/commit/ef6fa3da7e3a2d71b0bf241fc95152df971c64aa

And checking `matplotlib` documentation, they did this change in their 3.9 update:

Checking your code, I see you call: `pyplot.cm.get_cmap(...)` at least 3 times in the file:

I guess you just need to change the call `pyplot.cm.get_cmap(...)` into:

which will work both for older (`<3.9`) and newer (`>=3.9`) versions!

For `>=3.9` there is also these other options:

But of course, those would not suffice, since then they will not work for older versions (`<3.9`)...