如何清除图例中的matplotlib标签？

Question

有没有办法清除图形图例中的matplotlib标签？这篇文章解释了如何删除图例本身,但标签本身仍然存在,如果您绘制新图形,则会再次出现.我尝试了以下代码,但它不起作用:

handles, labels = ax.get_legend_handles_labels()
labels = []

编辑:这是一个例子

import matplotlib.pyplot as plt

fig = plt.figure()
ax = fig.gca()
ax.scatter([1,2,3], [4,5,6], label = "a")
legend = ax.legend()
plt.show()
legend.remove()
handles, labels = ax.get_legend_handles_labels()
print(labels)

输出: ["a"]

Answer 1

使用set_visible()方法：

import matplotlib.pyplot as plt

fig = plt.figure()
ax = fig.gca()
ax.scatter([1,2,3], [4,5,6], label = "a")
legend = ax.legend()
for text in legend.texts:
    if (text.get_text() == 'a'): text.set_text('b') # change label text
    text.set_visible(False)  # disable label
plt.show()