[Qgis-developer] Socket server freezes on Python plugin

[Víctor González]

Hi,

I'm trying to create a plugin that opens a socket server in a separate
thread and handles requests. I create the server using
SocketServer.TCPServer and threading.Thread in the initGui method and the
plugin starts correctly, but if I try to get a response from a client, the
server freezes and does not respond.

The strange thing is that I have added a toolbar button that opens and
closes a file and, if I click that button, the server unfreezes and I get
the response as expected. However, if I create the socket server with the
same exact code as an standalone program, it works as expected without
freezing.

I have looked into the PyQgis cookbook [1] and the contributed plugins [2]
searching for an example or solution but I couldn't find anything. Does
anyone know what may be wrong? Any hint will be greatly appreciated. I
attach the Qgis plugin as well as the standalone server and client.

Thanks in advance,
Víctor.
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