8000 Simplify _process_plot_var_args.set_prop_cycle. by anntzer · Pull Request #20201 · matplotlib/matplotlib · GitHub
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Simplify _process_plot_var_args.set_prop_cycle. #20201

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Merged
merged 1 commit into from
May 11, 2021
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Simplify _process_plot_var_args.set_prop_cycle. #20201

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19 changes: 7 additions & 12 deletions lib/matplotlib/axes/_base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -223,26 +223,21 @@ class _process_plot_var_args:
def __init__(self, axes, command='plot'):
self.axes = axes
self.command = command
self.set_prop_cycle()
self.set_prop_cycle(None)

def __getstate__(self):
# note: it is not possible to pickle a generator (and thus a cycler).
return {'axes': self.axes, 'command': self.command}

def __setstate__(self, state):
self.__dict__ = state.copy()
self.set_prop_cycle()
self.set_prop_cycle(None)

def set_prop_cycle(self, *args, **kwargs):
# Can't do `args == (None,)` as that crashes cycler.
if not (args or kwargs) or (len(args) == 1 and args[0] is None):
prop_cycler = mpl.rcParams['axes.prop_cycle']
else:
prop_cycler = cycler(*args, **kwargs)

self.prop_cycler = itertools.cycle(prop_cycler)
# This should make a copy
self._prop_keys = prop_cycler.keys
def set_prop_cycle(self, cycler):
if cycler is None:
cycler = mpl.rcParams['axes.prop_cycle']
self.prop_cycler = itertools.cycle(cycler)
self._prop_keys = cycler.keys # This should make a copy

def __call__(self, *args, data=None, **kwargs):
self.axes._process_unit_info(kwargs=kwargs)
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