python - Matplotlib plot legend shows markers twice -

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the legend in plot shows marker icon twice in legend

code output

the code produced plot given below

import pandas pd import random import matplotlib.pyplot plt import matplotlib.cm cm import numpy np  n = 15  colors = cm.rainbow(np.linspace(0, 1, n))  df = []  in range(n):     s = 'name %d' %     df.append(dict(x=random.random(), y=random.random(), name=s))  df = pd.dataframe(df) c = 0 labels = []  fig, ax = plt.subplots(figsize=(12,12)) name, group in df.groupby('name'):      x = group['x'].values[0]     y = group['y'].values[0]      color = colors[c]     c += 1      ax.plot(x, y, color=color, marker='o', linestyle='', label=name)      labels.append(name)  handels, _ = ax.get_legend_handles_labels() ax.legend(handels, labels)

why happening?

my actual df has multiple entries each name that's why groupby. there i'm missing here?

you can either set plt.legend(loc=...,numpoints =1) directly or create style sheet , set legend.numpoints : 1

if use linux system: place stylesheets in ~/.config/matplotlib/stylelib/ can use them plt.style.use([your_style_sheet]). additionally, can e.g. make 1 sheet colors etc. , 1 size: plt.style.use([my_colors,half_column_latex])


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