The reason is that the SSL certificate needs to be verified, but the certificate verification failed. I tried some methods on the Internet, mainly including canceling certificate verification and installing the latest certificate. I didn’t find a suitable method to install the latest certificate, so I used the method of canceling certificate verification. The specific operation is to add the following code at the location where the file needs to be downloaded:

import ssl
ssl._create_default_https_context = ssl._create_unverified_context