146 lines
4 KiB
Python
146 lines
4 KiB
Python
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"""
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get_terminal_size() -- return width and height of terminal as a tuple
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code from:
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http://stackoverflow.com/questions/566746/how-to-get-console- window-width-in-
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python
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written by
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Harco Kuppens (http://stackoverflow.com/users/825214/harco-kuppens)
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It is mentioned in the stackoverflow response that this code works
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on linux, os x, windows and cygwin (windows).
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"""
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from __future__ import print_function
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import os
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import shutil
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from pandas.compat import PY3
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__all__ = ['get_terminal_size', 'is_terminal']
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def get_terminal_size():
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"""
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Detect terminal size and return tuple = (width, height).
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Only to be used when running in a terminal. Note that the IPython notebook,
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IPython zmq frontends, or IDLE do not run in a terminal,
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"""
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import platform
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if PY3:
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return shutil.get_terminal_size()
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current_os = platform.system()
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tuple_xy = None
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if current_os == 'Windows':
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tuple_xy = _get_terminal_size_windows()
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if tuple_xy is None:
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tuple_xy = _get_terminal_size_tput()
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# needed for window's python in cygwin's xterm!
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if current_os == 'Linux' or \
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current_os == 'Darwin' or \
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current_os.startswith('CYGWIN'):
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tuple_xy = _get_terminal_size_linux()
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if tuple_xy is None:
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tuple_xy = (80, 25) # default value
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return tuple_xy
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def is_terminal():
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"""
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Detect if Python is running in a terminal.
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Returns True if Python is running in a terminal or False if not.
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"""
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try:
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ip = get_ipython()
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except NameError: # assume standard Python interpreter in a terminal
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return True
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else:
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if hasattr(ip, 'kernel'): # IPython as a Jupyter kernel
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return False
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else: # IPython in a terminal
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return True
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def _get_terminal_size_windows():
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res = None
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try:
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from ctypes import windll, create_string_buffer
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# stdin handle is -10
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# stdout handle is -11
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# stderr handle is -12
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h = windll.kernel32.GetStdHandle(-12)
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csbi = create_string_buffer(22)
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res = windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)
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except:
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return None
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if res:
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import struct
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(bufx, bufy, curx, cury, wattr, left, top, right, bottom, maxx,
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maxy) = struct.unpack("hhhhHhhhhhh", csbi.raw)
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sizex = right - left + 1
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sizey = bottom - top + 1
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return sizex, sizey
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else:
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return None
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def _get_terminal_size_tput():
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# get terminal width
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# src: http://stackoverflow.com/questions/263890/how-do-i-find-the-width
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# -height-of-a-terminal-window
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try:
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import subprocess
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proc = subprocess.Popen(["tput", "cols"],
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE)
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output = proc.communicate(input=None)
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cols = int(output[0])
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proc = subprocess.Popen(["tput", "lines"],
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE)
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output = proc.communicate(input=None)
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rows = int(output[0])
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return (cols, rows)
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except:
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return None
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def _get_terminal_size_linux():
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def ioctl_GWINSZ(fd):
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try:
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import fcntl
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import termios
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import struct
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cr = struct.unpack(
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'hh', fcntl.ioctl(fd, termios.TIOCGWINSZ, '1234'))
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except:
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return None
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return cr
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cr = ioctl_GWINSZ(0) or ioctl_GWINSZ(1) or ioctl_GWINSZ(2)
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if not cr:
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try:
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fd = os.open(os.ctermid(), os.O_RDONLY)
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cr = ioctl_GWINSZ(fd)
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os.close(fd)
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except:
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pass
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if not cr or cr == (0, 0):
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try:
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from os import environ as env
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cr = (env['LINES'], env['COLUMNS'])
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except:
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return None
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return int(cr[1]), int(cr[0])
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if __name__ == "__main__":
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sizex, sizey = get_terminal_size()
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print('width = {w} height = {h}'.format(w=sizex, h=sizey))
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