in python please,

A pedometer treats walking 2,000 steps as walking 1 mile. Write program whose input is the number of steps, and whose output is the miles walked.

Output each floating-point value with two digits after the decimal point, which can be achieved as follows:

print('{:.2f}'.format(your_value))

Ex: If the input is:

5345 

the output is:

2.67 

Your program must define and call the following function. The function should return the amount of miles walked.

def steps_to_miles(user_steps)