Closed
Description
Bug report
Bug summary
Cannot set drawstyle default to 'steps-post' in 3.0.0
In 2.0.2 I could set the default drawstyle by settings rcParams['lines.linestyle']. In 3.0.0, it barfs.
Is there a different way to set this? I don't see any rcParams keys that reference drawstyle or look like they could be impacting drawstyle
Code for reproduction
Python 3.5.4 |Continuum Analytics, Inc.| (default, Aug 14 2017, 13:26:58)
Type 'copyright', 'credits' or 'license' for more information
IPython 6.1.0 -- An enhanced Interactive Python. Type '?' for help.
In [1]: import matplotlib
In [2]: matplotlib.__version__
Out[2]: '2.0.2'
In [3]: matplotlib.rcParams['lines.linestyle'] = 'steps-post'
In [4]: print(matplotlib.get_backend())
Qt5Agg
In 3.0.0, this happens
Python 3.6.6 |Anaconda, Inc.| (default, Jun 28 2018, 17:14:51)
Type 'copyright', 'credits' or 'license' for more information
IPython 7.0.1 -- An enhanced Interactive Python. Type '?' for help.
In [1]: import matplotlib
In [2]: matplotlib.__version__
Out[2]: '3.0.0'
In [3]: matplotlib.rcParams['lines.linestyle'] = 'steps-post'
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
~/.conda/envs/bamboo/lib/python3.6/site-packages/matplotlib/__init__.py in __setitem__(self, key, val)
860 try:
--> 861 cval = self.validate[key](val)
862 except ValueError as ve:
~/.conda/envs/bamboo/lib/python3.6/site-packages/matplotlib/rcsetup.py in _validate_linestyle(ls)
949 if isinstance(ls, (str, bytes, bytearray)):
--> 950 return _validate_named_linestyle(ls)
951
~/.conda/envs/bamboo/lib/python3.6/site-packages/matplotlib/rcsetup.py in __call__(self, s)
64 raise ValueError('Unrecognized %s string %r: valid strings are %s'
---> 65 % (self.key, s, list(self.valid.values())))
66
ValueError: Unrecognized linestyle string 'steps-post': valid strings are ['-', '--', '-.', ':', 'solid', 'dashed', 'dashdot', 'dotted', 'none', ' ', '']
During handling of the above exception, another exception occurred:
ValueError Traceback (most recent call last)
<ipython-input-3-7f838b7219da> in <module>
----> 1 matplotlib.rcParams['lines.linestyle'] = 'steps-post'
~/.conda/envs/bamboo/lib/python3.6/site-packages/matplotlib/__init__.py in __setitem__(self, key, val)
861 cval = self.validate[key](val)
862 except ValueError as ve:
--> 863 raise ValueError("Key %s: %s" % (key, str(ve)))
864 dict.__setitem__(self, key, cval)
865 except KeyError:
ValueError: Key lines.linestyle: Unrecognized linestyle string 'steps-post': valid strings are ['-', '--', '-.', ':', 'solid', 'dashed', 'dashdot', 'dotted', 'none', ' ', '']
In [4]: print(matplotlib.get_backend())
Qt5Agg