reason A string mnemonic designating the reason this error occurred, for example CERTIFICATE_VERIFY_FAILED. The

ssl.OP_NO_TLSv1 Prevents a TLSv1 connection. This option is only applicable in conjunction with PROTOCOL_SSLv23

SSLContext.set_ciphers(ciphers) Set the available ciphers for sockets created with this context. It should be a string in the

rfind(sub[, start[, end]]) Returns the highest index in the object where the subsequence sub is found, such that sub

socket.sendfile(file, offset=0, count=None) Send a file until EOF is reached by using high-performance

socket.connect_ex(address) Like connect(address), but return an error indicator instead of raising an exception

ssl.PROTOCOL_SSLv3 Selects SSL version 3 as the channel encryption protocol. This protocol is

SSLContext.verify_flags The flags for certificate verification operations. You can set flags like VERIFY_CRL_CHECK_LEAF

socket.SocketType This is a Python type object that represents the socket object type. It is the same as type(socket(

SSLContext.verify_mode Whether to try to verify other peers’ certificates and how to behave if verification fails. This attribute