Get current terminal size on Linux, Mac, and Windows

terminalsize.py

#!/usr/bin/env python
import os
import shlex
import struct
import platform
import subprocess
 
 
def get_terminal_size():
    """ getTerminalSize()
     - get width and height of console
     - works on linux,os x,windows,cygwin(windows)
     originally retrieved from:
     http://stackoverflow.com/questions/566746/how-to-get-console-window-width-in-python
    """
    current_os = platform.system()
    tuple_xy = None
    if current_os == 'Windows':
        tuple_xy = _get_terminal_size_windows()
        if tuple_xy is None:
            tuple_xy = _get_terminal_size_tput()
            # needed for window's python in cygwin's xterm!
    if current_os in ['Linux', 'Darwin'] or current_os.startswith('CYGWIN'):
        tuple_xy = _get_terminal_size_linux()
    if tuple_xy is None:
        print "default"
        tuple_xy = (80, 25)      # default value
    return tuple_xy
 
 
def _get_terminal_size_windows():
    try:
        from ctypes import windll, create_string_buffer
        # stdin handle is -10
        # stdout handle is -11
        # stderr handle is -12
        h = windll.kernel32.GetStdHandle(-12)
        csbi = create_string_buffer(22)
        res = windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)
        if res:
            (bufx, bufy, curx, cury, wattr,
             left, top, right, bottom,
             maxx, maxy) = struct.unpack("hhhhHhhhhhh", csbi.raw)
            sizex = right - left + 1
            sizey = bottom - top + 1
            return sizex, sizey
    except:
        pass
 

def _get_terminal_size_tput():
    # get terminal width
    # src: http://stackoverflow.com/questions/263890/how-do-i-find-the-width-height-of-a-terminal-window
    try:
        cols = int(subprocess.check_call(shlex.split('tput cols')))
        rows = int(subprocess.check_call(shlex.split('tput lines')))
        return (cols, rows)
    except:
        pass
 
 
def _get_terminal_size_linux():
    def ioctl_GWINSZ(fd):
        try:
            import fcntl
            import termios
            cr = struct.unpack('hh',
                               fcntl.ioctl(fd, termios.TIOCGWINSZ, '1234'))
            return cr
        except:
            pass
    cr = ioctl_GWINSZ(0) or ioctl_GWINSZ(1) or ioctl_GWINSZ(2)
    if not cr:
        try:
            fd = os.open(os.ctermid(), os.O_RDONLY)
            cr = ioctl_GWINSZ(fd)
            os.close(fd)
        except:
            pass
    if not cr:
        try:
            cr = (os.environ['LINES'], os.environ['COLUMNS'])
        except:
            return None
    return int(cr[1]), int(cr[0])
 
if __name__ == "__main__":
    sizex, sizey = get_terminal_size()
    print  'width =', sizex, 'height =', sizey

Great! I'll try to use this in my ffunenga/pipgh repo

Sweet, I'll be using a rendition of this in https://github.com/catb0t/input_constrain

For _get_terminal_size_tput, the subprocess calls should use subprocess.check_output, not subprocess.check_call.

The current code causes the size to be printed to the terminal, but the returned size will be (0,0) (that is, if tput successfully exits on each call).

Thanks! Super helpful!

Note that there is python standard lib function for this now: os.get_terminal_size()

Thanks @Chronial for pointing this out! I note however that the docs for os.get_terminal_size() says that shutil.get_terminal_size() is the high-level call that should normally be used.

What python version is supported?

I'm running the script with python3 and I'm getting syntax errors

http://granitosaurus.rocks/getting-terminal-size.html

If you want to get the terminal size on all OS now you just gotta do :

import os
width, height = os.get_terminal_size()

have a nice day 😃

@andrebtw:

If you want to get the terminal size on all OS now you just gotta do :

import os
width, height = os.get_terminal_size()

have a nice day 😃

Nope. Doesn't work on Windows 10 for me. The shutil.get_terminal_size() does work tough, just like @arvestad said