[Python] How to add a variable to Python plt.title? [duplicate]

I am trying to plot lots of diagrams, and for each diagram, I want to use a variable to label them. How can I add a variable to plt.title? For example:

import numpy as np
import matplotlib.pyplot as plt

plt.figure(1)
plt.ylabel('y')
plt.xlabel('x')

for t in xrange(50, 61):
plt.title('f model: T=t')

for i in xrange(4, 10):
plt.plot(1.0 / i, i ** 2, 'ro')

plt.legend
plt.show()


In the argument of plt.title(), I want t to be variable changing with the loop.

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