/usr/lib/python2.7/dist-packages/ptrace/terminal.py is in python-ptrace 0.7-1.
This file is owned by root:root, with mode 0o644.
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Terminal functions.
"""
from termios import tcgetattr, tcsetattr, ECHO, TCSADRAIN, TIOCGWINSZ
from sys import stdin, stdout
from fcntl import ioctl
from struct import unpack
import os
TERMIO_LFLAGS = 3
def _terminalSize():
fd = stdout.fileno()
size = ioctl(fd, TIOCGWINSZ, '1234')
height, width = unpack('hh', size)
return (width, height)
def terminalWidth():
"""
Get the terminal width in characters.
"""
return _terminalSize()[0]
def enableEchoMode():
"""
Enable echo mode in the terminal. Return True if the echo mode is set
correctly, or False if the mode was already set.
"""
fd = stdin.fileno()
if not os.isatty(fd):
return False
state = tcgetattr(fd)
if state[TERMIO_LFLAGS] & ECHO:
return False
state[TERMIO_LFLAGS] = state[TERMIO_LFLAGS] | ECHO
tcsetattr(fd, TCSADRAIN, state)
return True
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