How to setup Python socket server correctly










3















I recently started learning Python but I came across a question. Why does my while True loop stops when I do socket.accept()



My code does that keeps printing 'HEY!!':



import socket


host = "0.0.0.0" #<- Not the real port and ip, I have working ones...
port = 1234

s = socket.socket()
s.bind((host, port))
s.listen(5)

while True:

print("HEY!!")

'''
connection, adress = s.accept()
print("Got connection from: '" + str(adress[0]) + ":" + str(adress[1]) + "'")
'''


My code that only prints 'HEY!!' once:



import socket


host = "0.0.0.0" #<- Not the real port and ip, I have working ones...
port = 1234

s = socket.socket()
s.bind((host, port))
s.listen(5)

while True:

print("HEY!!")

connection, adress = s.accept()
print("Got connection from: '" + str(adress[0]) + ":" + str(adress[1]) + "'")


And how can I solve that it keeps printing 'HEY!!' but also let the socket work?



Thanks for reading!



UPDATE:

It is working now, I am using threading to achieve it.

Do you have the same problem? -> Google: "Multiple while true loops threading python"
Thanks for everyone that helped me!










share|improve this question




























    3















    I recently started learning Python but I came across a question. Why does my while True loop stops when I do socket.accept()



    My code does that keeps printing 'HEY!!':



    import socket


    host = "0.0.0.0" #<- Not the real port and ip, I have working ones...
    port = 1234

    s = socket.socket()
    s.bind((host, port))
    s.listen(5)

    while True:

    print("HEY!!")

    '''
    connection, adress = s.accept()
    print("Got connection from: '" + str(adress[0]) + ":" + str(adress[1]) + "'")
    '''


    My code that only prints 'HEY!!' once:



    import socket


    host = "0.0.0.0" #<- Not the real port and ip, I have working ones...
    port = 1234

    s = socket.socket()
    s.bind((host, port))
    s.listen(5)

    while True:

    print("HEY!!")

    connection, adress = s.accept()
    print("Got connection from: '" + str(adress[0]) + ":" + str(adress[1]) + "'")


    And how can I solve that it keeps printing 'HEY!!' but also let the socket work?



    Thanks for reading!



    UPDATE:

    It is working now, I am using threading to achieve it.

    Do you have the same problem? -> Google: "Multiple while true loops threading python"
    Thanks for everyone that helped me!










    share|improve this question


























      3












      3








      3


      1






      I recently started learning Python but I came across a question. Why does my while True loop stops when I do socket.accept()



      My code does that keeps printing 'HEY!!':



      import socket


      host = "0.0.0.0" #<- Not the real port and ip, I have working ones...
      port = 1234

      s = socket.socket()
      s.bind((host, port))
      s.listen(5)

      while True:

      print("HEY!!")

      '''
      connection, adress = s.accept()
      print("Got connection from: '" + str(adress[0]) + ":" + str(adress[1]) + "'")
      '''


      My code that only prints 'HEY!!' once:



      import socket


      host = "0.0.0.0" #<- Not the real port and ip, I have working ones...
      port = 1234

      s = socket.socket()
      s.bind((host, port))
      s.listen(5)

      while True:

      print("HEY!!")

      connection, adress = s.accept()
      print("Got connection from: '" + str(adress[0]) + ":" + str(adress[1]) + "'")


      And how can I solve that it keeps printing 'HEY!!' but also let the socket work?



      Thanks for reading!



      UPDATE:

      It is working now, I am using threading to achieve it.

      Do you have the same problem? -> Google: "Multiple while true loops threading python"
      Thanks for everyone that helped me!










      share|improve this question
















      I recently started learning Python but I came across a question. Why does my while True loop stops when I do socket.accept()



      My code does that keeps printing 'HEY!!':



      import socket


      host = "0.0.0.0" #<- Not the real port and ip, I have working ones...
      port = 1234

      s = socket.socket()
      s.bind((host, port))
      s.listen(5)

      while True:

      print("HEY!!")

      '''
      connection, adress = s.accept()
      print("Got connection from: '" + str(adress[0]) + ":" + str(adress[1]) + "'")
      '''


      My code that only prints 'HEY!!' once:



      import socket


      host = "0.0.0.0" #<- Not the real port and ip, I have working ones...
      port = 1234

      s = socket.socket()
      s.bind((host, port))
      s.listen(5)

      while True:

      print("HEY!!")

      connection, adress = s.accept()
      print("Got connection from: '" + str(adress[0]) + ":" + str(adress[1]) + "'")


      And how can I solve that it keeps printing 'HEY!!' but also let the socket work?



      Thanks for reading!



      UPDATE:

      It is working now, I am using threading to achieve it.

      Do you have the same problem? -> Google: "Multiple while true loops threading python"
      Thanks for everyone that helped me!







      python python-3.x sockets






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 28 '18 at 14:56







      Banjer_HD

















      asked Nov 14 '18 at 17:53









      Banjer_HDBanjer_HD

      597




      597






















          1 Answer
          1






          active

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          1















          Why does my while True loop stops when I do socket.accept()




          accept is a blocking operation. It waits until a client connects. It continues after the client has been connected and returns the socket for the new client connection.




          My code that only prints 'HEY!!' once:




          It will print HEY!! more than once if clients connect to your server and thus the blocking accept returns.






          share|improve this answer























          • Thanks so much for your answer! So this means that 'HEY' will be printed after there is a socket connected and then it all starts again with waiting for a connection. Is it possible to have 2 different while loops? 1 that checks if a socket is connected and 1 to print out hey? Thanks again.

            – Banjer_HD
            Nov 14 '18 at 18:12






          • 1





            @Banjer_HD: One can use threads to have multiple while loops in the same program. But this is a different question.

            – Steffen Ullrich
            Nov 14 '18 at 18:22










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          active

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          1















          Why does my while True loop stops when I do socket.accept()




          accept is a blocking operation. It waits until a client connects. It continues after the client has been connected and returns the socket for the new client connection.




          My code that only prints 'HEY!!' once:




          It will print HEY!! more than once if clients connect to your server and thus the blocking accept returns.






          share|improve this answer























          • Thanks so much for your answer! So this means that 'HEY' will be printed after there is a socket connected and then it all starts again with waiting for a connection. Is it possible to have 2 different while loops? 1 that checks if a socket is connected and 1 to print out hey? Thanks again.

            – Banjer_HD
            Nov 14 '18 at 18:12






          • 1





            @Banjer_HD: One can use threads to have multiple while loops in the same program. But this is a different question.

            – Steffen Ullrich
            Nov 14 '18 at 18:22















          1















          Why does my while True loop stops when I do socket.accept()




          accept is a blocking operation. It waits until a client connects. It continues after the client has been connected and returns the socket for the new client connection.




          My code that only prints 'HEY!!' once:




          It will print HEY!! more than once if clients connect to your server and thus the blocking accept returns.






          share|improve this answer























          • Thanks so much for your answer! So this means that 'HEY' will be printed after there is a socket connected and then it all starts again with waiting for a connection. Is it possible to have 2 different while loops? 1 that checks if a socket is connected and 1 to print out hey? Thanks again.

            – Banjer_HD
            Nov 14 '18 at 18:12






          • 1





            @Banjer_HD: One can use threads to have multiple while loops in the same program. But this is a different question.

            – Steffen Ullrich
            Nov 14 '18 at 18:22













          1












          1








          1








          Why does my while True loop stops when I do socket.accept()




          accept is a blocking operation. It waits until a client connects. It continues after the client has been connected and returns the socket for the new client connection.




          My code that only prints 'HEY!!' once:




          It will print HEY!! more than once if clients connect to your server and thus the blocking accept returns.






          share|improve this answer














          Why does my while True loop stops when I do socket.accept()




          accept is a blocking operation. It waits until a client connects. It continues after the client has been connected and returns the socket for the new client connection.




          My code that only prints 'HEY!!' once:




          It will print HEY!! more than once if clients connect to your server and thus the blocking accept returns.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 14 '18 at 18:06









          Steffen UllrichSteffen Ullrich

          62.1k359101




          62.1k359101












          • Thanks so much for your answer! So this means that 'HEY' will be printed after there is a socket connected and then it all starts again with waiting for a connection. Is it possible to have 2 different while loops? 1 that checks if a socket is connected and 1 to print out hey? Thanks again.

            – Banjer_HD
            Nov 14 '18 at 18:12






          • 1





            @Banjer_HD: One can use threads to have multiple while loops in the same program. But this is a different question.

            – Steffen Ullrich
            Nov 14 '18 at 18:22

















          • Thanks so much for your answer! So this means that 'HEY' will be printed after there is a socket connected and then it all starts again with waiting for a connection. Is it possible to have 2 different while loops? 1 that checks if a socket is connected and 1 to print out hey? Thanks again.

            – Banjer_HD
            Nov 14 '18 at 18:12






          • 1





            @Banjer_HD: One can use threads to have multiple while loops in the same program. But this is a different question.

            – Steffen Ullrich
            Nov 14 '18 at 18:22
















          Thanks so much for your answer! So this means that 'HEY' will be printed after there is a socket connected and then it all starts again with waiting for a connection. Is it possible to have 2 different while loops? 1 that checks if a socket is connected and 1 to print out hey? Thanks again.

          – Banjer_HD
          Nov 14 '18 at 18:12





          Thanks so much for your answer! So this means that 'HEY' will be printed after there is a socket connected and then it all starts again with waiting for a connection. Is it possible to have 2 different while loops? 1 that checks if a socket is connected and 1 to print out hey? Thanks again.

          – Banjer_HD
          Nov 14 '18 at 18:12




          1




          1





          @Banjer_HD: One can use threads to have multiple while loops in the same program. But this is a different question.

          – Steffen Ullrich
          Nov 14 '18 at 18:22





          @Banjer_HD: One can use threads to have multiple while loops in the same program. But this is a different question.

          – Steffen Ullrich
          Nov 14 '18 at 18:22



















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