How to stop inputs on the presence of CR

[wavic]

In [1]: nums = input("Write your numbers: ")
   ...: 
Write your numbers: 3 14 5.43 723.98 65

In [2]: nums_l = [float(n) for n in nums.split()]

In [3]: nums_l
Out[3]: [3.0, 14.0, 5.43, 723.98, 65.0]

In [4]: print("Numbers: {}\nSum: {}\nAvarage: {:.3f}".format(nums_l, sum(nums_l), sum(nums_l) / len(nums_l)))

Numbers: [3.0, 14.0, 5.43, 723.98, 65.0]
Sum: 811.41
Avarage: 162.282