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Home/ Questions/Why do I get the trouble with “oserror: [errno 48] address already in use”?
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Rose Bourdin
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Rose Bourdin
Asked: May 17, 20222022-05-17T12:58:56+00:00 2022-05-17T12:58:56+00:00In: python

Why do I get the trouble with “oserror: [errno 48] address already in use”?

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How to solve the problem – oserror: [errno 48] address already in use? I have the sample detail:

python -m SimpleHTTPServer

While I was running it, I found the warning message:

socket.error: [Errno 48] Address already in use

That is my question in my midterm exam, and it is urgent. I searched the solutions for some websites, but I didn’t get it. I may miss any line or other changes. I appreciate your assistance!

oserror
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    dttutoria Expert
    2022-06-05T16:18:01+00:00Added an answer on June 5, 2022 at 4:18 pm

    The cause: A process is already linked to the default port (8000). If you’ve run the identical module before, the process is almost certainly still connected to the port.

    Solution: 

    First, locate the other process:

    $ ps -fA | grep python 
    501 81651 12648 0 9:53PM ttys000 0:00.16 python -m SimpleHTTPServer

    If there are multiple Python processes running, the command arguments are supplied to help you identify the one that is running SimpleHTTPServer. Check if http://localhost:8000/ still displays a directory listing for local files.

    Send a signal to the server to prevent it:

    81651 kills

    In case the process is unresponsive, you may have to resort to other methods like sending a SIGKILL (kill -s KILL <pid> or kill -9 <pid>) signal.

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  2. Lou Lebreton
    2022-05-25T19:58:27+00:00Added an answer on May 25, 2022 at 7:58 pm

    Simple solution:

    1. Use port 8080 to find the process:
    sudo lsof -i:8080
    1. Stop the process at that port
    kill $PID
    
    kill -9 $PID //to forcefully kill the port

    From step 1, the output of Step 1 is used to calculate PID.

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