Evosax Import Error
twoletters opened this issue · 3 comments
twoletters commented
Hi Rob,
Thank you for developing this excellent library. I was desperate to find a working implementation of several of these optimizers. Riding on JAX is the icing on the cake.
I used pip
to install matplotlib
3.1.0, evosax
0.1.0 and jax[cpu]
0.4.2. Now in Python 3.8.10, if I try to import evosax
, I get the following error:
>>> import evosax
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python3.8/dist-packages/evosax/__init__.py", line 36, in <module>
from .problems import ProblemMapper
File "/usr/local/lib/python3.8/dist-packages/evosax/problems/__init__.py", line 3, in <module>
from .bbob import BBOBFitness
File "/usr/local/lib/python3.8/dist-packages/evosax/problems/bbob.py", line 7, in <module>
from evosax.utils.visualizer_2d import BBOBVisualizer
File "/usr/local/lib/python3.8/dist-packages/evosax/utils/visualizer_2d.py", line 10, in <module>
cmap = cm.colors.LinearSegmentedColormap.from_list(
File "/usr/local/lib/python3.8/dist-packages/matplotlib/colors.py", line 704, in from_list
r, g, b, a = to_rgba(color)
File "/usr/local/lib/python3.8/dist-packages/matplotlib/colors.py", line 177, in to_rgba
rgba = _to_rgba_no_colorcycle(c, alpha)
File "/usr/local/lib/python3.8/dist-packages/matplotlib/colors.py", line 231, in _to_rgba_no_colorcycle
raise ValueError("Invalid RGBA argument: {!r}".format(orig_c))
ValueError: Invalid RGBA argument: '#eee'
The incriminating code is:
evosax/evosax/utils/visualizer_2d.py
Lines 10 to 12 in 3c7b751
Is that a
matplotlib
issue or a problem in the code?twoletters commented
Replacing "#eee"
with "#0e0e0e"
works.
RobertTLange commented
Thank you -- this is probably a problem with the matplotlib version! Will be fixed in the next release!
RobertTLange commented
Fixed in release v.0.1.4! Thank you for raising this.