From 78bc173568d85327c182914a30d1be845ed43cfc Mon Sep 17 00:00:00 2001 From: Thomas A Caswell Date: Wed, 22 Sep 2021 18:45:07 -0400 Subject: [PATCH] Backport PR #21127: Simplify argument parsing in stem(). --- lib/matplotlib/axes/_axes.py | 48 ++++++------------------------------ 1 file changed, 8 insertions(+), 40 deletions(-) diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py index 66af3dd8038c..b55d4a1199e6 100644 --- a/lib/matplotlib/axes/_axes.py +++ b/lib/matplotlib/axes/_axes.py @@ -2881,50 +2881,18 @@ def stem(self, *args, linefmt=None, markerfmt=None, basefmt=None, bottom=0, # defaults for formats if linefmt is None: - try: - # fallback to positional argument - linefmt = args[0] - except IndexError: - linecolor = 'C0' - linemarker = 'None' - linestyle = '-' - else: - linestyle, linemarker, linecolor = \ - _process_plot_format(linefmt) - else: - linestyle, linemarker, linecolor = _process_plot_format(linefmt) + linefmt = args[0] if len(args) > 0 else "C0-" + linestyle, linemarker, linecolor = _process_plot_format(linefmt) if markerfmt is None: - try: - # fallback to positional argument - markerfmt = args[1] - except IndexError: - markercolor = 'C0' - markermarker = 'o' - markerstyle = 'None' - else: - markerstyle, markermarker, markercolor = \ - _process_plot_format(markerfmt) - else: - markerstyle, markermarker, markercolor = \ - _process_plot_format(markerfmt) + markerfmt = args[1] if len(args) > 1 else "C0o" + markerstyle, markermarker, markercolor = \ + _process_plot_format(markerfmt) if basefmt is None: - try: - # fallback to positional argument - basefmt = args[2] - except IndexError: - if rcParams['_internal.classic_mode']: - basecolor = 'C2' - else: - basecolor = 'C3' - basemarker = 'None' - basestyle = '-' - else: - basestyle, basemarker, basecolor = \ - _process_plot_format(basefmt) - else: - basestyle, basemarker, basecolor = _process_plot_format(basefmt) + basefmt = (args[2] if len(args) > 2 else + "C2-" if rcParams["_internal.classic_mode"] else "C3-") + basestyle, basemarker, basecolor = _process_plot_format(basefmt) # New behaviour in 3.1 is to use a LineCollection for the stemlines if use_line_collection: pFad - Phonifier reborn

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