I am trying to write a sript python to read from a file and send the output to a named pipe or named pipe. Unlike the standard pipe, the named pipe persists in the system and not in memory.
So far I have seen that with popen you can work with standard pipes and take the inputs / outputs of systems but I can not walk with the aforementioned named pipe.
I answer myself ... Named Pipe in Linux with a Python Example - roman10 link
This url explains how reading and writing works using a named pipe.
The detail is that for each writing the pipe must be opened and closed.
py1.py
pipe = open('psquid', 'w')
pipe.write('hola')
pipe.close()
py2.py
pipe2 = open('psquid', 'r')
pipe2.read()
'hola'
Greetings