python画画加粗_Matplotlib'粗体'字体 - python

跟随this example:

import numpy as np

import matplotlib.pyplot as plt

fig = plt.figure()

for i, label in enumerate(('A', 'B', 'C', 'D')):

ax = fig.add_subplot(2,2,i+1)

ax.text(0.05, 0.95, label, transform=ax.transAxes,

fontsize=16, fontweight='bold', va='top')

plt.show()

我得到以下输出:

为什么我的标签重量正常,而文档显示此标签应该创建粗体字母A,B,C,D?

我也收到此警告:

Warning (from warnings module):

File "C:\Python27\lib\site-packages\matplotlib\font_manager.py", line 1228

UserWarning)

UserWarning: findfont: Could not match :family=Bitstream Vera Sans:style=italic:variant=normal:weight=bold:stretch=normal:size=x-small. Returning C:\Python27\lib\site-packages\matplotlib\mpl-data\fonts\ttf\Vera.ttf

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