Get path to current TTY in Python

Question

How do you get the device path for the current TTY?

Python has sys.stdin, sys.stdoutand os.ttyname, but you cannot pass any of the shapers to the latter, because this requires a file descriptor.

Answer 1

You can pass sys.stdout.filenoto os.ttyname:

In [3]: os.ttyname(sys.stdout.fileno())
Out[3]: '/dev/pts/24'

Answer 2

This may have portability problems, but in most Unix-like environments it /dev/stdoutrefers to the current terminal and is unique to every connection [windows, tabs, ssh, etc.] that you opened. Given these assumptions, you can use:

with open('/dev/stdout') as fd:
    tty_path = os.ttyname(fd.fileno())