The TLS/SSL protocol is a crucial safeguard for user information on websites and web applications, protecting data using encryption. To implement TLS/SSL in Python, one must install a valid TLS/SSL certificate, which upgrades the website from HTTP to HTTPS, a more secure transfer protocol. A valid SSL certificate must be issued by a credible certificate authority and have an active issuance date and expiration date. Websites without a valid SSL certificate often lack visible indicators, such as the URL prefix "http://" instead of "https://", and no lock icon in the address bar. Python can be used to verify the validity of a website's SSL certificate using the requests library, which stores the received value in the response variable. The Python SSL library is also used to provide TLS encryption in socket-based communication between Python clients and servers. A self-signed SSL certificate can be generated for local development, but purchasing an SSL certificate from a trusted domain registrar is necessary for deploying a site or app on the internet. Creating a self-signed SSL certificate involves generating a private key, creating a certificate signing request (CSR), and signing the CSR to create the certificate. The process of generating a self-signed SSL certificate can be followed by wrapping the socket with SSL using the Python ssl library.