How to convert array of strings to int array in python?

Question

我有一个字符串数组 ["[1,3]","[1,5]"] 如何将其转换为 [[1,2],[1,5]]？

Answer 1

You could use a list comprehension to evaluate the strings.

array = [eval(a) for a in array]

As mentioned elsewhere, this is a very risky if your input is unsanitised as it runs code that you may not have written (more info here ) that may exploit your system or cause random errors so if you can find another way that would be optimal.

Answer 2

You could also use json.loads() for every element in the list.

import json
lst =  ["[1,3]","[1,5]"]
output = []
for i in lst:
    output.append(json.loads(i))
print(output)

Output

[[1, 3], [1, 5]]