Real-time stdout read from subprocess works only when running from PyCharm and not Terminal

I know this is an old thread, but still -

I had the same issue as you did. I asked a question that seemed to help me get in the right direction as to working with real time output. My issue was I needed to differentiate output that resulted of a CR and simulate that behavior in my program. But then I encountered your problem as well - I worked for 3 days trying to find a solution as to why this happens.

After reading this and having no luck with what they did there, I found this thread without answers but one comment that after a little modification, finally helped me.

What finally worked for me, is this:

#                        This seems to handle    This seems to handle#                        the terminal output     the PyCharm outputproc = subprocess.Popen(["stdbuf", "-oL"] + cmd, stdout=subprocess.PIPE)out = io.open(proc.stdout.fileno(), mode='r', encoding="utf-8", newline='')should_cr = Falsefor line in out:    if should_cr is True:        sys.stdout.write("\r")        sys.stdout.flush()    if line.endswith(os.linesep):        should_cr = False        sys.stdout.write(line)        sys.stdout.flush()    elif line.endswith("\r"):        should_cr = True        line = line.rstrip()        sys.stdout.write(line)        sys.stdout.flush()

If you wouldn't regard CR output then it is more simple of course:

#                        This seems to handle    This seems to handle#                        the terminal output     the PyCharm outputproc = subprocess.Popen(["stdbuf", "-oL"] + cmd, stdout=subprocess.PIPE)for line in iter(proc.stdout.readline, ''):    print(line)

Notice this works for me in Python 2.7