twosum.py

class Solution:
    
    def wanted(this, number, target):
        return target - number
    
    def twoSum(self, nums: List[int], target: int) -> List[int]:
        
        wanted_dict = {}
        
        for i in range(0, len(nums)):
            num  = nums[i]
            entry = (i, self.wanted(num,target))
            wanted_dict[num]=entry
            
        for i in range(0, len(nums)):
            target_making_key = target - nums[i]
            if target_making_key in wanted_dict:
                (j, _) = wanted_dict[target_making_key]
                if (i != j):
                    return (i,j)