On 5/3/2021 8:57 AM, Maximilian.Blenk--- via Cygwin wrote:
Hello everyone, I noticed that latest Cygwin release (3.2.0-1) has an issue with python and unix domain sockets, although I’m not a 100% sure about the root cause. My best guess is that something is wrong with the unix domain dockets implementation. I would like to attach the cygcheck.out but it seems to exceed the 180kb limit mentioned on the website (even zipped) Simple Reproducer: I tried to get the example shown at https://pymotw.com/3/socket/uds.html working. It works if I execute it with python3.5 (both client and server), but it doesn’t if I use python3.6 or newer (actually tested 3.6 and 3.7 on Windows 10): Correct Behavior: Server: $ python3.5 server.py starting up on ./uds_socket waiting for a connection connection from received b'This is the mess' sending data back to the client received b'age. It will be' sending data back to the client received b' repeated.' sending data back to the client received b'' no data from waiting for a connection … Client: $ python3.5 client.py connecting to ./uds_socket sending b'This is the message. It will be repeated.' received b'This is the mess' received b'age. It will be' received b' repeated.' closing socket Incorrect Behavior: Server: $ python3.7 server.py starting up on ./uds_socket waiting for a connection Traceback (most recent call last): File "server.py", line 27, in <module> connection, client_address = sock.accept() File "/usr/lib/python3.7/socket.py", line 214, in accept sock = socket(self.family, self.type, self.proto, fileno=fd) File "/usr/lib/python3.7/socket.py", line 151, in __init__ _socket.socket.__init__(self, family, type, proto, fileno) SystemError: <slot wrapper '__init__' of '_socket.socket' objects> returned NULL without setting an error Client: $ python3.7 client.py connecting to ./uds_socket sending b'This is the message. It will be repeated.' closing socket Traceback (most recent call last): File "client.py", line 27, in <module> data = sock.recv(16) ConnectionResetError: [Errno 104] Connection reset by peer
I wonder if this has the same cause as the problem reported here: https://cygwin.com/pipermail/cygwin/2021-February/247884.html Mark, can you check that? Ken -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
