Python Matplotlib到smtplib [英] Python Matplotlib to smtplib

问题描述

我想知道是否可以通过smtplib发送一个matplotlib pyplot.我的意思是，在绘制此数据框之后:

I'm wondering if I can send out a matplotlib pyplot through smtplib. What I mean is, after I plot this dataframe:

In [3]: dfa
Out[3]:
           day      imps  clicks
70  2013-09-09  90739468   74609
69  2013-09-08  90945581   72529
68  2013-09-07  91861855   70869

In [6]: dfa.plot()
Out[6]: <matplotlib.axes.AxesSubplot at 0x3f24da0>

我知道我可以使用

plt.show()

但是对象本身存储在哪里?还是我对matplotlib有误解?有没有一种方法可以在python中将其转换为图片或html，以便我可以通过smtplib发送它?谢谢！

but where is the object itself stored? Or am I misunderstanding something about matplotlib? Is there a way to convert it to a picture or html within python so I can send it through smtplib? Thanks!

推荐答案

您可以使用

You can use figure.savefig() to save your plot to a file. An example where I output a plot to a file:

fig = plt.figure()    
ax = fig.add_subplot(111)

# Need to do this so we don't have to worry about how many lines we have - 
# matplotlib doesn't like one x and multiple ys, so just repeat the x
lines = []
for y in ys:
    lines.append(x)
    lines.append(y)

ax.plot(*lines)

fig.savefig("filename.png")

然后将图像附加到您的电子邮件中(例如此答案中的食谱).

Then just attach the image to your email (like the recipe in this answer).

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