I'm trying to plot two sets of data in a bar graph with matplotlib, so I'm using two axes with the `twinx()` method. However, the second y-axis label gets cut off. I've tried a few different methods with no success (`tight_layout()`, setting the `major_pad`s in `rcParams`, etc...). I feel like the solution is simple, but I haven't come across it yet.

Here's a MWE:

```
#!/usr/bin/env python
import numpy as np
import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as plt

matplotlib.rcParams.update({'font.size': 21})
ax = plt.gca()
plt.ylabel('Data1') #Left side
ax2 = ax.twinx()
for i in range(10):
  if(i%2==0):
    ax.bar(i,np.random.randint(10))
  else:
    ax2.bar(i,np.random.randint(1000),color='k')

plt.ylabel('Data2') #Right

```

side
plt.savefig("test.png")

![Sample graph with Data2 cut off](https://i.stack.imgur.com/RTSpa.png)