matplotlib broke compatibility with get_cmap in new release (3.9)
When executing the base example on a newly installed version of py-pde:
import pde
grid = pde.UnitGrid([32,32])
state = pde.ScalarField.random_uniform(grid, -1, 1)
eq = pde.DiffusionPDE(diffusivity=0.1)
result = eq.solve(state, t_range=1, dt=0.01)
result.plot()
I receive the following traceback, which was subsequently solved by performing the command pip install --force-reinstall "matplotlib==3.8.3", which downgrades matplotlib to 3.8.3.
Other packages seem to be having the same issue (atarashansky/SAMap#148).
---------------------------------------------------------------------------
ModuleNotFoundError Traceback (most recent call last)
File ~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/collection.py:21
[20](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/collection.py:20) try:
---> [21](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/collection.py:21) from matplotlib.colormaps import get_cmap
[22](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/collection.py:22) except ImportError:
ModuleNotFoundError: No module named 'matplotlib.colormaps'
During handling of the above exception, another exception occurred:
ImportError Traceback (most recent call last)
Cell In[3], [line 1](vscode-notebook-cell:?execution_count=3&line=1)
----> [1](vscode-notebook-cell:?execution_count=3&line=1) import pde
[3](vscode-notebook-cell:?execution_count=3&line=3) grid = pde.UnitGrid
[4](vscode-notebook-cell:?execution_count=3&line=4) state = pde.ScalarField.random_uniform(grid)
File ~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/__init__.py:28
[25](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/__init__.py:25) del Config # clean name space
[27](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/__init__.py:27) # import all other modules that should occupy the main name space
---> [28](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/__init__.py:28) from .fields import * # @UnusedWildImport
[29](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/__init__.py:29) from .grids import * # @UnusedWildImport
[30](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/__init__.py:30) from .pdes import * # @UnusedWildImport
File ~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/__init__.py:26
[1](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/__init__.py:1) """
[2](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/__init__.py:2) Defines fields, which contain the actual data stored on a discrete grid.
[3](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/__init__.py:3)
(...)
[22](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/__init__.py:22) .. codeauthor:: David Zwicker <david.zwicker@ds.mpg.de>
[23](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/__init__.py:23) """
[25](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/__init__.py:25) from .base import FieldBase
---> [26](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/__init__.py:26) from .collection import FieldCollection
[27](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/__init__.py:27) from .scalar import ScalarField
[28](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/__init__.py:28) from .tensorial import Tensor2Field
File ~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/collection.py:23
[21](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/collection.py:21) from matplotlib.colormaps import get_cmap
[22](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/collection.py:22) except ImportError:
---> [23](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/collection.py:23) from matplotlib.cm import get_cmap
[25](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/collection.py:25) from ..grids.base import GridBase
[26](https://file+.vscode-resource.vscode-cdn.net/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/~/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/pde/fields/collection.py:26) from ..tools.docstrings import fill_in_docstring
ImportError: cannot import name 'get_cmap' from 'matplotlib.cm' (/Users/tmroyal/Documents/composition/opuses2024/coding_projects/pde_play/.venv/lib/python3.11/site-packages/matplotlib/cm.py)
matplotlib broke compatibility with get_cmap in new release (3.9)
When executing the base example on a newly installed version of py-pde:
I receive the following traceback, which was subsequently solved by performing the command
pip install --force-reinstall "matplotlib==3.8.3", which downgrades matplotlib to 3.8.3.Other packages seem to be having the same issue (atarashansky/SAMap#148).