randomdob_function.py

def random_dob(start, end, n):
    """
    Generating a list of a set number of timestamps
    """
    
    # The timestamp format
    frmt = "%Y-%m-%d"
    
    # Formatting the two time periods
    stime = datetime.datetime.strptime(start, frmt)
    etime = datetime.datetime.strptime(end, frmt)
    
    # Creating the pool for random times
    td = etime - stime
    
    # Generating a list with the random times
    times = [(random.random() * td + stime).strftime(frmt) for _ in range(n)]
    
    return times

df['dob'] = random_dob("1980-01-01", "2006-01-01", num_users)