Error message
During the process of using Python to make a data set, the following error was reported:

The reason for the error
The error translates as:

Permission error: [Errno 13] permission denied:

The error occurs when the file cannot be opened. It can occur when the file cannot be found, is occupied, has no access, or is opened not to a file but to a directory.
The solution
The solution is as follows:

1. Check whether the file under the corresponding path exists and is occupied. If the file does not exist, just find the corresponding file; If the file exists and is occupied, the occupying program is temporarily closed.
2. Modify the permissions of CMD to run as administrator.
3. Check if the folder is open.