pandas pie chart plot remove the label text on the wedge

Using pandas you can still use the matplotlib.pyplot.pie keyword labeldistance to remove the wedge labels.
eg. df.plot.pie(subplots=True, labeldistance=None, legend=True)

From the docs:
labeldistance: float or None, optional, default: 1.1
The radial distance at which the pie labels are drawn. If set to None, label are not drawn, but are stored for use in legend()

In context:

import matplotlib.pyplot as plt
plt.style.use('ggplot')
import numpy as np
np.random.seed(123456)


import pandas as pd
df = pd.DataFrame(3 * np.random.rand(4, 2), index=['a', 'b', 'c', 'd'], columns=['x', 'y'])

df.plot.pie(subplots=True, figsize=(10,5), autopct='%.2f', fontsize=10, labeldistance=None);

plt.show()

Output:

You can turn off the labels in the chart, and then define them within the call to legend:

df[col].plot(kind='pie', autopct='%.2f', labels=['','','',''],  ax=ax, title=col, fontsize=10)
ax.legend(loc=3, labels=df.index)

or

... labels=None ...