socket.getservbyname

socket.getservbyname(servicename, protocolname)

• This function translates an internet service name and protocol name to a port number
• The servicename represents the service name (e.g. ftp)
• The protocolname represents tbe protocol name (e.g. tcp)
• The protocolname should be tcp or udp

Example of getservbyname

>>> import socket
>>> socket.getservbyname('ftp', 'tcp')
21

References

• Python Essential Reference
• Documentation for socket API