array.py

class Array:
    """sizeOfArray: denotes the total size of the array to be initialized
    arrayType: denotes the data type of the array(as all the elements of the array have same data type)
    arrayItems: values at each position of array
    """

    def __init__(self, sizeOfArray, arrayType=int):
        self.sizeOfArray = len(list(map(arrayType, range(sizeOfArray))))
        # initialize array with zeroes
        self.arrayItems = [arrayType(0)] * sizeOfArray
        self.arrayType = arrayType

    def __str__(self):
        return " ".join([str(i) for i in self.arrayItems])

    def __len__(self):
        return len(self.arrayItems)

    # magic methods to enable indexing
    def __setitem__(self, index, data):
        self.arrayItems[index] = data

    def __getitem__(self, index):
        return self.arrayItems[index]

    # function for search
    def search(self, keyToSearch):
        for i in range(self.sizeOfArray):
            if self.arrayItems[i] == keyToSearch:  # brute-forcing
                return i  # index at which element/ key was found

        return -1  # if key not found, return -1

    # function for inserting an element
    def insert(self, keyToInsert, position):
        if self.sizeOfArray > position:
            for i in range(self.sizeOfArray - 2, position - 1, -1):
                self.arrayItems[i + 1] = self.arrayItems[i]
            self.arrayItems[position] = keyToInsert
        else:
            print("Array size is:", self.sizeOfArray)

    # function to delete an element
    def delete(self, keyToDelete, position):
        if self.sizeOfArray > position:
            for i in range(position, self.sizeOfArray - 1):
                self.arrayItems[i] = self.arrayItems[i + 1]
            self.arrayItems[i + 1] = self.arrayType(0)
        else:
            print("Array size is:", self.sizeOfArray)


if __name__ == "__main__":
    a = Array(10, int)
    a.insert(2, 2)
    a.insert(3, 1)
    a.insert(4, 7)
    print(len(a))