Python tty.tcsetattr() Examples
The following are 30
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Example #1
Source File: pty.py From ironpython2 with Apache License 2.0 | 7 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except (IOError, OSError): if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd)
Example #2
Source File: pty.py From BinderFilter with MIT License | 7 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except (IOError, OSError): if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd)
Example #3
Source File: pty.py From Fluid-Designer with GNU General Public License v3.0 | 6 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except OSError: if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd) return os.waitpid(pid, 0)[1]
Example #4
Source File: pty.py From Computable with MIT License | 6 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except (IOError, OSError): if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd)
Example #5
Source File: pty.py From oss-ftp with MIT License | 6 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except (IOError, OSError): if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd)
Example #6
Source File: pty.py From android_universal with MIT License | 6 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except OSError: if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd) return os.waitpid(pid, 0)[1]
Example #7
Source File: pty.py From CTFCrackTools with GNU General Public License v3.0 | 6 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except (IOError, OSError): if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd)
Example #8
Source File: pty.py From CTFCrackTools with GNU General Public License v3.0 | 6 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except (IOError, OSError): if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd)
Example #9
Source File: pty.py From PokemonGo-DesktopMap with MIT License | 6 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except (IOError, OSError): if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd)
Example #10
Source File: pty.py From CTFCrackTools-V2 with GNU General Public License v3.0 | 6 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except (IOError, OSError): if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd)
Example #11
Source File: pty.py From CTFCrackTools-V2 with GNU General Public License v3.0 | 6 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except (IOError, OSError): if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd)
Example #12
Source File: pty.py From Imogen with MIT License | 6 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except OSError: if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd) return os.waitpid(pid, 0)[1]
Example #13
Source File: conch.py From BitTorrent with GNU General Public License v3.0 | 6 votes |
def closed(self): global old log.msg('closed %s' % self) log.msg(repr(self.conn.channels)) if not options['nocache']: # fork into the background if os.fork(): if old: fd = sys.stdin.fileno() tty.tcsetattr(fd, tty.TCSANOW, old) if (options['command'] and options['tty']) or \ not options['notty']: signal.signal(signal.SIGWINCH, signal.SIG_DFL) os._exit(0) os.setsid() for i in range(3): try: os.close(i) except OSError, e: import errno if e.errno != errno.EBADF: raise
Example #14
Source File: unix.py From BitTorrent with GNU General Public License v3.0 | 6 votes |
def setModes(self): pty = self.pty attr = tty.tcgetattr(pty.fileno()) for mode, modeValue in self.modes: if not ttymodes.TTYMODES.has_key(mode): continue ttyMode = ttymodes.TTYMODES[mode] if len(ttyMode) == 2: # flag flag, ttyAttr = ttyMode if not hasattr(tty, ttyAttr): continue ttyval = getattr(tty, ttyAttr) if modeValue: attr[flag] = attr[flag]|ttyval else: attr[flag] = attr[flag]&~ttyval elif ttyMode == 'OSPEED': attr[tty.OSPEED] = getattr(tty, 'B%s'%modeValue) elif ttyMode == 'ISPEED': attr[tty.ISPEED] = getattr(tty, 'B%s'%modeValue) else: if not hasattr(tty, ttyMode): continue ttyval = getattr(tty, ttyMode) attr[tty.CC][ttyval] = chr(modeValue) tty.tcsetattr(pty.fileno(), tty.TCSANOW, attr)
Example #15
Source File: pty.py From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 | 6 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except OSError: if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd) return os.waitpid(pid, 0)[1]
Example #16
Source File: unix.py From python-for-android with Apache License 2.0 | 6 votes |
def setModes(self): pty = self.pty attr = tty.tcgetattr(pty.fileno()) for mode, modeValue in self.modes: if not ttymodes.TTYMODES.has_key(mode): continue ttyMode = ttymodes.TTYMODES[mode] if len(ttyMode) == 2: # flag flag, ttyAttr = ttyMode if not hasattr(tty, ttyAttr): continue ttyval = getattr(tty, ttyAttr) if modeValue: attr[flag] = attr[flag]|ttyval else: attr[flag] = attr[flag]&~ttyval elif ttyMode == 'OSPEED': attr[tty.OSPEED] = getattr(tty, 'B%s'%modeValue) elif ttyMode == 'ISPEED': attr[tty.ISPEED] = getattr(tty, 'B%s'%modeValue) else: if not hasattr(tty, ttyMode): continue ttyval = getattr(tty, ttyMode) attr[tty.CC][ttyval] = chr(modeValue) tty.tcsetattr(pty.fileno(), tty.TCSANOW, attr)
Example #17
Source File: pty.py From Splunking-Crime with GNU Affero General Public License v3.0 | 6 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except (IOError, OSError): if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd)
Example #18
Source File: pty.py From ironpython3 with Apache License 2.0 | 6 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except OSError: if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd) return os.waitpid(pid, 0)[1]
Example #19
Source File: pty.py From datafari with Apache License 2.0 | 6 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: os.execlp(argv[0], *argv) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except (IOError, OSError): if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd)
Example #20
Source File: pydoc.py From CTFCrackTools-V2 with GNU General Public License v3.0 | 5 votes |
def ttypager(text): """Page through text on a text terminal.""" lines = split(plain(text), '\n') try: import tty fd = sys.stdin.fileno() old = tty.tcgetattr(fd) tty.setcbreak(fd) getchar = lambda: sys.stdin.read(1) except (ImportError, AttributeError): tty = None getchar = lambda: sys.stdin.readline()[:-1][:1] try: r = inc = os.environ.get('LINES', 25) - 1 sys.stdout.write(join(lines[:inc], '\n') + '\n') while lines[r:]: sys.stdout.write('-- more --') sys.stdout.flush() c = getchar() if c in ('q', 'Q'): sys.stdout.write('\r \r') break elif c in ('\r', '\n'): sys.stdout.write('\r \r' + lines[r] + '\n') r = r + 1 continue if c in ('b', 'B', '\x1b'): r = r - inc - inc if r < 0: r = 0 sys.stdout.write('\n' + join(lines[r:r+inc], '\n') + '\n') r = r + inc finally: if tty: tty.tcsetattr(fd, tty.TCSAFLUSH, old)
Example #21
Source File: pydoc.py From CTFCrackTools-V2 with GNU General Public License v3.0 | 5 votes |
def ttypager(text): """Page through text on a text terminal.""" lines = split(plain(text), '\n') try: import tty fd = sys.stdin.fileno() old = tty.tcgetattr(fd) tty.setcbreak(fd) getchar = lambda: sys.stdin.read(1) except (ImportError, AttributeError): tty = None getchar = lambda: sys.stdin.readline()[:-1][:1] try: r = inc = os.environ.get('LINES', 25) - 1 sys.stdout.write(join(lines[:inc], '\n') + '\n') while lines[r:]: sys.stdout.write('-- more --') sys.stdout.flush() c = getchar() if c in ('q', 'Q'): sys.stdout.write('\r \r') break elif c in ('\r', '\n'): sys.stdout.write('\r \r' + lines[r] + '\n') r = r + 1 continue if c in ('b', 'B', '\x1b'): r = r - inc - inc if r < 0: r = 0 sys.stdout.write('\n' + join(lines[r:r+inc], '\n') + '\n') r = r + inc finally: if tty: tty.tcsetattr(fd, tty.TCSAFLUSH, old)
Example #22
Source File: shell_logger.py From thefuck with MIT License | 5 votes |
def _spawn(shell, master_read): """Create a spawned process. Modified version of pty.spawn with terminal size support. """ pid, master_fd = pty.fork() if pid == pty.CHILD: os.execlp(shell, shell) try: mode = tty.tcgetattr(pty.STDIN_FILENO) tty.setraw(pty.STDIN_FILENO) restore = True except tty.error: # This is the same as termios.error restore = False _set_pty_size(master_fd) signal.signal(signal.SIGWINCH, lambda *_: _set_pty_size(master_fd)) try: pty._copy(master_fd, master_read, pty._read) except OSError: if restore: tty.tcsetattr(pty.STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd) return os.waitpid(pid, 0)[1]
Example #23
Source File: pydoc.py From RevitBatchProcessor with GNU General Public License v3.0 | 5 votes |
def ttypager(text): """Page through text on a text terminal.""" lines = split(plain(text), '\n') try: import tty fd = sys.stdin.fileno() old = tty.tcgetattr(fd) tty.setcbreak(fd) getchar = lambda: sys.stdin.read(1) except (ImportError, AttributeError): tty = None getchar = lambda: sys.stdin.readline()[:-1][:1] try: r = inc = os.environ.get('LINES', 25) - 1 sys.stdout.write(join(lines[:inc], '\n') + '\n') while lines[r:]: sys.stdout.write('-- more --') sys.stdout.flush() c = getchar() if c in ('q', 'Q'): sys.stdout.write('\r \r') break elif c in ('\r', '\n'): sys.stdout.write('\r \r' + lines[r] + '\n') r = r + 1 continue if c in ('b', 'B', '\x1b'): r = r - inc - inc if r < 0: r = 0 sys.stdout.write('\n' + join(lines[r:r+inc], '\n') + '\n') r = r + inc finally: if tty: tty.tcsetattr(fd, tty.TCSAFLUSH, old)
Example #24
Source File: pydoc.py From medicare-demo with Apache License 2.0 | 5 votes |
def ttypager(text): """Page through text on a text terminal.""" lines = split(plain(text), '\n') try: import tty fd = sys.stdin.fileno() old = tty.tcgetattr(fd) tty.setcbreak(fd) getchar = lambda: sys.stdin.read(1) except (ImportError, AttributeError): tty = None getchar = lambda: sys.stdin.readline()[:-1][:1] try: r = inc = os.environ.get('LINES', 25) - 1 sys.stdout.write(join(lines[:inc], '\n') + '\n') while lines[r:]: sys.stdout.write('-- more --') sys.stdout.flush() c = getchar() if c in ('q', 'Q'): sys.stdout.write('\r \r') break elif c in ('\r', '\n'): sys.stdout.write('\r \r' + lines[r] + '\n') r = r + 1 continue if c in ('b', 'B', '\x1b'): r = r - inc - inc if r < 0: r = 0 sys.stdout.write('\n' + join(lines[r:r+inc], '\n') + '\n') r = r + inc finally: if tty: tty.tcsetattr(fd, tty.TCSAFLUSH, old)
Example #25
Source File: pydoc.py From canape with GNU General Public License v3.0 | 5 votes |
def ttypager(text): """Page through text on a text terminal.""" lines = split(plain(text), '\n') try: import tty fd = sys.stdin.fileno() old = tty.tcgetattr(fd) tty.setcbreak(fd) getchar = lambda: sys.stdin.read(1) except (ImportError, AttributeError): tty = None getchar = lambda: sys.stdin.readline()[:-1][:1] try: r = inc = os.environ.get('LINES', 25) - 1 sys.stdout.write(join(lines[:inc], '\n') + '\n') while lines[r:]: sys.stdout.write('-- more --') sys.stdout.flush() c = getchar() if c in ('q', 'Q'): sys.stdout.write('\r \r') break elif c in ('\r', '\n'): sys.stdout.write('\r \r' + lines[r] + '\n') r = r + 1 continue if c in ('b', 'B', '\x1b'): r = r - inc - inc if r < 0: r = 0 sys.stdout.write('\n' + join(lines[r:r+inc], '\n') + '\n') r = r + inc finally: if tty: tty.tcsetattr(fd, tty.TCSAFLUSH, old)
Example #26
Source File: conch.py From python-for-android with Apache License 2.0 | 5 votes |
def _enterRawMode(): global _inRawMode, _savedMode if _inRawMode: return fd = sys.stdin.fileno() try: old = tty.tcgetattr(fd) new = old[:] except: log.msg('not a typewriter!') else: # iflage new[0] = new[0] | tty.IGNPAR new[0] = new[0] & ~(tty.ISTRIP | tty.INLCR | tty.IGNCR | tty.ICRNL | tty.IXON | tty.IXANY | tty.IXOFF) if hasattr(tty, 'IUCLC'): new[0] = new[0] & ~tty.IUCLC # lflag new[3] = new[3] & ~(tty.ISIG | tty.ICANON | tty.ECHO | tty.ECHO | tty.ECHOE | tty.ECHOK | tty.ECHONL) if hasattr(tty, 'IEXTEN'): new[3] = new[3] & ~tty.IEXTEN #oflag new[1] = new[1] & ~tty.OPOST new[6][tty.VMIN] = 1 new[6][tty.VTIME] = 0 _savedMode = old tty.tcsetattr(fd, tty.TCSANOW, new) #tty.setraw(fd) _inRawMode = 1
Example #27
Source File: conch.py From python-for-android with Apache License 2.0 | 5 votes |
def _leaveRawMode(): global _inRawMode if not _inRawMode: return fd = sys.stdin.fileno() tty.tcsetattr(fd, tty.TCSANOW, _savedMode) _inRawMode = 0
Example #28
Source File: pydoc.py From CTFCrackTools with GNU General Public License v3.0 | 5 votes |
def ttypager(text): """Page through text on a text terminal.""" lines = split(plain(text), '\n') try: import tty fd = sys.stdin.fileno() old = tty.tcgetattr(fd) tty.setcbreak(fd) getchar = lambda: sys.stdin.read(1) except (ImportError, AttributeError): tty = None getchar = lambda: sys.stdin.readline()[:-1][:1] try: r = inc = os.environ.get('LINES', 25) - 1 sys.stdout.write(join(lines[:inc], '\n') + '\n') while lines[r:]: sys.stdout.write('-- more --') sys.stdout.flush() c = getchar() if c in ('q', 'Q'): sys.stdout.write('\r \r') break elif c in ('\r', '\n'): sys.stdout.write('\r \r' + lines[r] + '\n') r = r + 1 continue if c in ('b', 'B', '\x1b'): r = r - inc - inc if r < 0: r = 0 sys.stdout.write('\n' + join(lines[r:r+inc], '\n') + '\n') r = r + inc finally: if tty: tty.tcsetattr(fd, tty.TCSAFLUSH, old)
Example #29
Source File: _pty.py From Turing with MIT License | 5 votes |
def spawn(argv, master_read=_read, stdin_read=_read): """Create a spawned process.""" if type(argv) == type(''): argv = (argv,) pid, master_fd = fork() if pid == CHILD: try: os.execlp(argv[0], *argv) except: # If we wanted to be really clever, we would use # the same method as subprocess() to pass the error # back to the parent. For now just dump stack trace. traceback.print_exc() finally: os._exit(1) try: mode = tty.tcgetattr(STDIN_FILENO) tty.setraw(STDIN_FILENO) restore = 1 except tty.error: # This is the same as termios.error restore = 0 try: _copy(master_fd, master_read, stdin_read) except OSError: # Some OSes never return an EOF on pty, just raise # an error instead. pass finally: if restore: tty.tcsetattr(STDIN_FILENO, tty.TCSAFLUSH, mode) os.close(master_fd) return os.waitpid(pid, 0)[1]
Example #30
Source File: pydoc.py From CTFCrackTools with GNU General Public License v3.0 | 5 votes |
def ttypager(text): """Page through text on a text terminal.""" lines = split(plain(text), '\n') try: import tty fd = sys.stdin.fileno() old = tty.tcgetattr(fd) tty.setcbreak(fd) getchar = lambda: sys.stdin.read(1) except (ImportError, AttributeError): tty = None getchar = lambda: sys.stdin.readline()[:-1][:1] try: r = inc = os.environ.get('LINES', 25) - 1 sys.stdout.write(join(lines[:inc], '\n') + '\n') while lines[r:]: sys.stdout.write('-- more --') sys.stdout.flush() c = getchar() if c in ('q', 'Q'): sys.stdout.write('\r \r') break elif c in ('\r', '\n'): sys.stdout.write('\r \r' + lines[r] + '\n') r = r + 1 continue if c in ('b', 'B', '\x1b'): r = r - inc - inc if r < 0: r = 0 sys.stdout.write('\n' + join(lines[r:r+inc], '\n') + '\n') r = r + inc finally: if tty: tty.tcsetattr(fd, tty.TCSAFLUSH, old)