Socket exceptions

In order to handle exceptions, we'll use the try and except blocks. The following example will tell you how to handle the exceptions. Run udptime2.py:

import socket
host = "192.168.0.1"
port = 12346
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
try:
  
  s.bind((host,port))
  s.settimeout(5)
  data, addr = s.recvfrom(1024)
  print "recevied from ",addr
  print "obtained ", data
  s.close()
  
except socket.timeout :
  print "Client not connected"
  s.close()

The output is shown in the following screenshot:

In the try block, I put my code, and from the except block, a customized message is printed if any exception occurs.

Different types of exceptions are defined in Python's socket library for different errors. These exceptions are described here:

• exception socket.herror: This block catches the address-related error.
• exception socket.timeout: This block catches the exception when a timeout on a socket occurs, which has been enabled by settimeout(). In the previous example, you can see that we used socket.timeout.
• exception socket.gaierror: This block catches any exception that is raised due to getaddrinfo() and getnameinfo().
• exception socket.error: This block catches any socket-related errors. If you are not sure about any exception, you could use this. In other words, you can say that it is a generic block and can catch any type of exception.

Downloading the example code

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