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gh-111112: Avoid potential confusion in TCP server example. #111113

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Feb 1, 2024
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gh-111112: Avoid potential confusion in TCP server example. #111113

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7 changes: 4 additions & 3 deletions Doc/library/socketserver.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -494,7 +494,7 @@ This is the server side::
def handle(self):
# self.request is the TCP socket connected to the client
self.data = self.request.recv(1024).strip()
print("{} wrote:".format(self.client_address[0]))
print("Received from {}:".format(self.client_address[0]))
print(self.data)
# just send back the same data, but upper-cased
self.request.sendall(self.data.upper())
Expand Down Expand Up @@ -525,8 +525,9 @@ objects that simplify communication by providing the standard file interface)::

The difference is that the ``readline()`` call in the second handler will call
``recv()`` multiple times until it encounters a newline character, while the
single ``recv()`` call in the first handler will just return what has been sent
from the client in one ``sendall()`` call.
single ``recv()`` call in the first handler will just return what has been
received so far from the client's ``sendall()`` call (typically all of it, but
this is not guaranteed by the TCP protocol).


This is the client side::
Expand Down