Answers for "save in python"

np.save function

np.save('data.npy', num_arr) # save
new_num_arr = np.load('data.npy') # load

python - save file

def save_to_file(content, filename):
    with open(filename, 'w') as file:
        file.write(content)

import file_operations
file_operations.save_to_file('my_content', 'data.txt')