如何使用matplotlib在python中保存一个图？

Question

When using:

In [42]: tz_counts[:10].plot(kind='barh', rot=0)

it return:

Out[42]: <matplotlib.axes._subplots.AxesSubplot at 0x7fa216b464d0>

But I can't see any file, it isn't showing either.

I start learning python today. Can someone help me?

Answer 1

You can use savefig :

import matplotlib.pyplot as plt
plt.plot(range(10), range(10))
plt.savefig('a.pdf')