interractive input in preprinted matrix in python

To take interactive input in a preprinted matrix in Python, you can use a nested loop to iterate over each cell of the matrix and prompt the user for input. Here's an example:

main.py
# Create an empty matrix of size 3x3
matrix = [[0 for _ in range(3)] for _ in range(3)]

# Take interactive input for each cell of the matrix
for i in range(3):
    for j in range(3):
        matrix[i][j] = int(input(f"Enter value for cell ({i}, {j}): "))

# Print the matrix
for row in matrix:
    print(row)
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In this example, we create an empty 3x3 matrix using nested list comprehension. Then, we iterate over each cell using nested loops and use the input function to prompt the user for input. The value entered by the user is stored at the corresponding position in the matrix.

Finally, we print the matrix to show the user the entered values. You can customize the size of the matrix by changing the range values in the loops.

Remember to convert the input to the desired data type (in this example, we are using int(input(...))) based on your needs.