How to plot a figure with Chinese Characters in label

Question

When I draw a figure with Chinese Character label in Python 3, it doesn't work correctly:

]

My code:

fig = pd.DataFrame({
    '债券收益率':bond,
    '债券型基金收益率':bondFunds,
    '被动指数型基金收益率':indexFunds,
    '总收益率':ret})
fig.plot()
plt.legend(loc=0)
plt.title('债券收益率',
          fontproperties='SimHei',
          fontsize='xx-large')
plt.grid(True)
plt.axis('tight')

Answer 1

You need to explicitly pass the font properties to legend function using the prop kwag:

from matplotlib import font_manager

fontP = font_manager.FontProperties()
fontP.set_family('SimHei')
fontP.set_size(14)

fig = pd.DataFrame({
    '?????':bond,
    '????????':bondFunds,
    '??????????':indexFunds,
    '????':ret})
fig.plot()

# Note the next lines
plt.legend(loc=0, prop=fontP)
plt.title('?????', fontproperties=fontP)

plt.grid(True)
plt.axis('tight')

---

Source

Answer 2

Try this:

import matplotlib.pyplot as plt
plt.rcParams['font.sans-serif'] = ['SimHei'] # Or any other Chinese characters

Answer 3

Extending on Raphael's answer, for those using macOS, the system Chinese fonts is Heiti. To check if you have it:

import matplotlib
print([f for f in matplotlib.font_manager.fontManager.ttflist if 'Heiti' in f.name])

Then, do the following:

matplotlib.rcParams['font.family'] = ['Heiti TC']

For more here a link.

Answer 4

macbook pro m1 solved by:

import matplotlib

matplotlib.rcParams['font.family'] = ['Heiti TC']