[Python] How to pass an entire list as command line argument in Python?

I was trying to pass two lists containing integers as arguments to a python code. But sys.argv gets the parameters as a list of string.

Input would look like,

$ python filename.py [2,3,4,5] [1,2,3,4]


I found the following hack to convert the list.

strA = sys.argv[1].replace('[', ' ').replace(']', ' ').replace(',', ' ').split()
strB = sys.argv[2].replace('[', ' ').replace(']', ' ').replace(',', ' ').split()
A = [float(i) for i in strA]
B = [float (i) for i in strB]


Is there a better way to do this?

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