Jupyter显示没有plt.show()的情节 [英] Jupyter shows plot without plt.show()

问题描述

我正在将Jupyter笔记本与Python 2.7一起使用.像这样导入matplotlib:

I am using the Jupyter notebook with Python 2.7. Importing matplotlib like this:

%matplotlib inline    
import matplotlib.pyplot as plt

但是我观察到一件事.当我在Spyder中使用Python时，我总是必须在python脚本的末尾使用plt.show()命令才能查看图.

But I have observed one thing. When I use Python in Spyder I always have to use the plt.show() command at the end of the python script in order to see the plots.

在Jupyter中，我不需要此命令即可查看情节.我确实收到此错误消息:

In Jupyter I do not need this command in order to see a plot. I do get this error message:

[<matplotlib.lines.Line2D at 0x91615d0>]

但它仍然可以绘制情节.为什么会这样?

but it still makes a plot. Why is that?

推荐答案

您可以使用%matplotlib inline打开即时显示.

You turn on the immediate display with %matplotlib inline.

该行:

[<matplotlib.lines.Line2D at 0x91615d0>]

是没有错误信息.它是最后一条命令的返回值.尝试在最后一行的末尾添加;来消除这种情况.

is no error message. It is the return value of the last command. Try adding a ; at the end of the last line to suppress this.

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