%matplotlib inline
import numpy as np
import matplotlib
import matplotlib.pyplot as plt
import pandas as pd

print "numpy: ", np.__version__
print "pandas: ", pd.__version__
print "matplotlib: ", matplotlib.__version__

df = pd.DataFrame({'A':[1,3,2,5,4,7,6], 'B':[1,1,1,1,2,2,2]})

fig, ax = plt.subplots()
df['A'].plot(ax=ax)

ax.set_ylim(0,20)
fig

fig, ax = plt.subplots()
df.boxplot('A', 'B', ax=ax)

ax.set_ylim(0,20)
fig