Close UDP socket without socket .close ()

Question

Having a python program that opens a UDP socket

receiveSock = socket(AF_INET, SOCK_DGRAM)
receiveSock.bind(("", portReceive))

Sometimes it happens that the program fails or I terminate it while it is running and it does not reach

receiveSock.close()

So the next time I try to run this program, I get

receiveSock.bind(("",portReceive))
  File "<string>", line 1, in bind
socket.error: [Errno 98] Address already in use

How can I close this socket using a shell command (or any other helpful idea)?

+3

URL87 20 jan. 13 at 10:24

1 answer

Burhan khalid · Accepted Answer · 2013-01-20T10:48:49+0000

You have two options:

try:
   # your socket operations
finally:
   # close your socket

Or, for newer Python versions:

with open_the_socket() as the_socket:
   # do stuff with the_socket

with statement

will close the socket when the block is finished or the program exits.