在Python中获取当前TTY的路径

Question

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

Python has sys.stdin , sys.stdout and os.ttyname but you cannot pass either of the formers to the latter because it requires a file descriptor.

Answer 1

You can pass sys.stdout.fileno to os.ttyname :

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

Answer 2

This may have portability issues, but in most Unix-like environments /dev/stdout refers to the current terminal and is unique to each connection [windows, tabs, ssh, etc.] you have open. Given those assumptions you can use:

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