设置matplotlib默认图形窗口标题 [英] Set matplotlib default figure window title

问题描述

图形的默认窗口标题是图形X，其中每个图形X都增加.

The default window title of a figure is figure X, where X is increased each figure.

我知道如何更改人物的标题:

I know how to change the title of a figure:

fig = pylab.gcf()
fig.canvas.set_window_title('Test')

但是如何更改默认的窗口标题(以使其成为Test 1，Test 2等)?这样我就不需要每次都更改窗口标题.我在mpl.rcParams中找不到键

But how do I change the default window title (So that it will be Test 1, Test 2 etc..)? so that I will not need to change the window title each time. I did not find a key in the mpl.rcParams

谢谢

推荐答案

使用 matplotlib.pyplot.subplots 创建图形时，有一个可选参数 num ，即使没有记录下来(据我所能搜索)，后来也被用作图标题:

When creating a figure using matplotlib.pyplot.subplots, there is an optional argument num that, even if not documented as such (as far as I could search), is later used as figure title:

import matplotlib.pyplot as plt
fig, axes = plt.subplots(nrows=2, num="some nice window title")
plt.ion()  # to make plot non-blocking, i.e. if multiple plots are launched
fig.show()

保存绘图时，它也用作默认文件名，这是一个非常简洁的功能.

It is also used as default filename when saving the plot, which is a very neat feature.

(警告:即使未记录，此 num 值也是该数字的关键.因此，请注意不要重复使用相同的值.)

(Caution: even if not documented, this num value is also a key to this figure. So, take care not to reuse the same value.)

结果如下:

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