Matplotlib/Pyplot: How to zoom subplots together?

The easiest way to do this is by using the sharex and/or sharey keywords when creating the axes:

from matplotlib import pyplot as plt

ax1 = plt.subplot(2,1,1)
ax1.plot(...)
ax2 = plt.subplot(2,1,2, sharex=ax1)
ax2.plot(...)

You can also do this with plt.subplots, if that's your style.

fig, ax = plt.subplots(3, 1, sharex=True, sharey=True)

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