Convert any float number to Round number with Python

Sometimes you need to convert float number into round figure. Python has several way to do this
1. With round

x = 34354.65756
round(x)

 Output:34355.0 

You can also define how many number after point. So look this 

round(x,4) 

Output: 34354.6576

round(x,2)

Output:34354.66 

Another hard way to round float number, this code is found from Udacity.
This code provide you no point after the round number. So look this code and 
code is very interesting 

x=34354.65756
num=x+0.5
s= str(num)
point = s.find('.')
print s[:point] 

Output:34355