i have this script that chatgpt made for me, i want to test it out but i am new to coding and im not sure how to run it.
i tried googling it but many of them go into way to deep detail and have just walls of text that for someone with dyslexia is very hard to read. i have python and pip installed and they are up to date along with notepad++

import os

def rename_files_in_folder(folder_path, prefix, exclude_filename=None):
    # Get a list of all files in the folder
    files = os.listdir(folder_path)

    # Rename each file with a prefix and number, excluding the specified file
    for i, filename in enumerate(files):
        if filename == exclude_filename:
            continue
        new_filename = f"{prefix}{i + 1}{os.path.splitext(filename)[1]}"
        os.rename(os.path.join(folder_path, filename), os.path.join(folder_path, new_filename))

# Example usage
rename_files_in_folder("/path/to/folder", "new_file_", exclude_filename="file_to_exclude.txt")

I've new to python and trying to learn the computer language to experiment and hopefully be good enough to get a job. I bought "Python Crash Course" 2nd edition by Eric Matthes and have been researching youtube videos on the language to learn more about the program. I don't know if its just my computer or I didn't set it up right but its impossible for me to open or run a python program from my terminal. I always get hit with the "The system cannot find the path specified" whenever I try and it's becoming really frustrating. I watched a couple videos online but nothing seems to work. How do i fix this little issue?