Horst Koiner wrote at 2023-5-9 11:13 -0700: > ... >For production i run the program with stdout=subprocess.PIPE and i can fetch >than the output later. For just testing if the program works, i run with >stdout=subprocess.STDOUT and I see all program output on the console, but my >program afterwards crashes since there is nothing captured in the python >variable. So I think I need to have the functionality of subprocess.PIPE and >subprcess.STDOUT sametime.
You might want to implement the functionality of the *nix programm `tee` in Python. `tee` reads from one file and writes the data to several files, i.e. it multiplexes one input file to several output files. Pyhton's `tee` would likely be implemented by a separate thread. For your case, the input file could be the subprocess's pipe and the output files `sys.stdout` and a pipe created by your own used by your application in place of the subprocess's pipe. -- https://mail.python.org/mailman/listinfo/python-list
