Host name: Specify the proxy hostname or IP address.
Port number: Specify the proxy port number.
No proxy for: Specify one or several host names or IP addresses for which no proxy should be specified. You can use an asterisk to denote a wildcard for any number of characters, and a comma to separate addresses.
Proxy authentication: Select this checkbox if your proxy requires authentication.
Login: Specify the user for connecting to the proxy.
Password: Specify the password associated with the user (login).
Remember: Select this checkbox if you want PyCharm to remember the password. Otherwise, you will be asked to provide the password every time PyCharm connects to the proxy.
Click to check the proxy settings and, in the window that opens, enter a URL to check connection to it through the specified proxy server.