circular import when loading rc with cycle #364
Description
An error is thrown when setting up the circle in the ultraplotrc. The persists from #proplot-dev/proplot#335 (comment).
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
Cell In[1], line 10
8 import numpy as np
9 import xcesm
---> 10 import ultraplot as pplt
11 import matplotlib.pyplot as plt
12 import nc_time_axis
File /glade/work/che43/conda-envs/neu/lib/python3.11/site-packages/ultraplot/__init__.py:34
32 # Import everything to top level
33 with _benchmark("config"):
---> 34 from .config import * # noqa: F401 F403
35 with _benchmark("proj"):
36 from .proj import * # noqa: F401 F403
File /glade/work/che43/conda-envs/neu/lib/python3.11/site-packages/ultraplot/config.py:1825
1821 rc_ultraplot = rcsetup._rc_ultraplot_default.copy() # a validated rcParams-style dict
1823 #: Instance of `Configurator`. This controls both `rc_matplotlib` and `rc_ultraplot`
1824 #: settings. See the :ref:`configuration guide <ug_config>` for details.
-> 1825 rc = Configurator(skip_cycle=True)
1827 # Deprecated
1828 RcConfigurator = warnings._rename_objs(
1829 "0.8.0",
1830 RcConfigurator=Configurator,
1831 )
File /glade/work/che43/conda-envs/neu/lib/python3.11/site-packages/ultraplot/config.py:769, in Configurator.__init__(self, local, user, default, **kwargs)
763 """
764 Parameters
765 ----------
766 %(rc.params)s
767 """
768 self._context = []
--> 769 self._init(local=local, user=user, default=default, **kwargs)
File /glade/work/che43/conda-envs/neu/lib/python3.11/site-packages/ultraplot/config.py:879, in Configurator._init(self, local, user, default, skip_cycle)
877 user_path = self.user_file()
878 if os.path.isfile(user_path):
--> 879 self.load(user_path)
881 # Update from local paths
882 if local:
File /glade/work/che43/conda-envs/neu/lib/python3.11/site-packages/ultraplot/config.py:1683, in Configurator.load(self, path)
1681 rcdict = self._load_file(path)
1682 for key, value in rcdict.items():
-> 1683 self.__setitem__(key, value)
File /glade/work/che43/conda-envs/neu/lib/python3.11/site-packages/ultraplot/config.py:788, in Configurator.__setitem__(self, key, value)
783 def __setitem__(self, key, value):
784 """
785 Modify an `rc_matplotlib` or `rc_ultraplot` setting using dictionary notation
786 (e.g., ``uplt.rc[name] = value``).
787 """
--> 788 kw_ultraplot, kw_matplotlib = self._get_item_dicts(key, value)
789 rc_ultraplot.update(kw_ultraplot)
790 rc_matplotlib.update(kw_matplotlib)
File /glade/work/che43/conda-envs/neu/lib/python3.11/site-packages/ultraplot/config.py:997, in Configurator._get_item_dicts(self, key, value, skip_cycle)
994 # Cycler
995 # NOTE: Have to skip this step during initial ultraplot import
996 elif contains("cycle") and not skip_cycle:
--> 997 from .colors import _get_cmap_subtype
999 cmap = _get_cmap_subtype(value, "discrete")
1000 kw_matplotlib["axes.prop_cycle"] = cycler.cycler("color", cmap.colors)
File /glade/work/che43/conda-envs/neu/lib/python3.11/site-packages/ultraplot/colors.py:32
29 import numpy as np
30 import numpy.ma as ma
---> 32 from .config import rc
33 from .internals import ic # noqa: F401
34 from .internals import (
35 _kwargs_to_args,
36 _not_none,
(...)
40 warnings,
41 )
ImportError: cannot import name 'rc' from partially initialized module 'ultraplot.config' (most likely due to a circular import) (/glade/work/che43/conda-envs/neu/lib/python3.11/site-packages/ultraplot/config.py)