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Cause of bind() Error

Question Text​

While receiver.py is still running, run it again from another terminal. You will get an error. What is its cause?

Question Answers​

  • the IP 127.0.0.1 is already used by receive.py
  • the port 5000 is already used (by receive.py)

  • a port may not be used multiple times by the same process

  • the socket was not created correctly

Feedback​

One port may only be bound to one socket at a time. The fact that it's the same program (same source code) using it is irrelevant because they're different processes.