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miniterm-3.6.py
#!/usr/libexec/platform-python # # Very simple serial terminal # # This file is part of pySerial. https://github.com/pyserial/pyserial # (C)2002-2015 Chris Liechti <cliechti@gmx.net> # # SPDX-License-Identifier: BSD-3-Clause import codecs import os import sys import threading import serial from serial.tools.list_ports import comports from serial.tools import hexlify_codec # pylint: disable=wrong-import-order,wrong-import-position codecs.register(lambda c: hexlify_codec.getregentry() if c == 'hexlify' else None) try: raw_input except NameError: # pylint: disable=redefined-builtin,invalid-name raw_input = input # in python3 it's "raw" unichr = chr def key_description(character): """generate a readable description for a key""" ascii_code = ord(character) if ascii_code < 32: return 'Ctrl+{:c}'.format(ord('@') + ascii_code) else: return repr(character) # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - class ConsoleBase(object): """OS abstraction for console (input/output codec, no echo)""" def __init__(self): if sys.version_info >= (3, 0): self.byte_output = sys.stdout.buffer else: self.byte_output = sys.stdout self.output = sys.stdout def setup(self): """Set console to read single characters, no echo""" def cleanup(self): """Restore default console settings""" def getkey(self): """Read a single key from the console""" return None def write_bytes(self, byte_string): """Write bytes (already encoded)""" self.byte_output.write(byte_string) self.byte_output.flush() def write(self, text): """Write string""" self.output.write(text) self.output.flush() def cancel(self): """Cancel getkey operation""" # - - - - - - - - - - - - - - - - - - - - - - - - # context manager: # switch terminal temporary to normal mode (e.g. to get user input) def __enter__(self): self.cleanup() return self def __exit__(self, *args, **kwargs): self.setup() if os.name == 'nt': # noqa import msvcrt import ctypes class Out(object): """file-like wrapper that uses os.write""" def __init__(self, fd): self.fd = fd def flush(self): pass def write(self, s): os.write(self.fd, s) class Console(ConsoleBase): def __init__(self): super(Console, self).__init__() self._saved_ocp = ctypes.windll.kernel32.GetConsoleOutputCP() self._saved_icp = ctypes.windll.kernel32.GetConsoleCP() ctypes.windll.kernel32.SetConsoleOutputCP(65001) ctypes.windll.kernel32.SetConsoleCP(65001) self.output = codecs.getwriter('UTF-8')(Out(sys.stdout.fileno()), 'replace') # the change of the code page is not propagated to Python, manually fix it sys.stderr = codecs.getwriter('UTF-8')(Out(sys.stderr.fileno()), 'replace') sys.stdout = self.output self.output.encoding = 'UTF-8' # needed for input def __del__(self): ctypes.windll.kernel32.SetConsoleOutputCP(self._saved_ocp) ctypes.windll.kernel32.SetConsoleCP(self._saved_icp) def getkey(self): while True: z = msvcrt.getwch() if z == unichr(13): return unichr(10) elif z in (unichr(0), unichr(0x0e)): # functions keys, ignore msvcrt.getwch() else: return z def cancel(self): # CancelIo, CancelSynchronousIo do not seem to work when using # getwch, so instead, send a key to the window with the console hwnd = ctypes.windll.kernel32.GetConsoleWindow() ctypes.windll.user32.PostMessageA(hwnd, 0x100, 0x0d, 0) elif os.name == 'posix': import atexit import termios import select class Console(ConsoleBase): def __init__(self): super(Console, self).__init__() self.fd = sys.stdin.fileno() # an additional pipe is used in getkey, so that the cancel method # can abort the waiting getkey method self.pipe_r, self.pipe_w = os.pipe() self.old = termios.tcgetattr(self.fd) atexit.register(self.cleanup) if sys.version_info < (3, 0): self.enc_stdin = codecs.getreader(sys.stdin.encoding)(sys.stdin) else: self.enc_stdin = sys.stdin def setup(self): new = termios.tcgetattr(self.fd) new[3] = new[3] & ~termios.ICANON & ~termios.ECHO & ~termios.ISIG new[6][termios.VMIN] = 1 new[6][termios.VTIME] = 0 termios.tcsetattr(self.fd, termios.TCSANOW, new) def getkey(self): ready, _, _ = select.select([self.enc_stdin, self.pipe_r], [], [], None) if self.pipe_r in ready: os.read(self.pipe_r, 1) return c = self.enc_stdin.read(1) if c == unichr(0x7f): c = unichr(8) # map the BS key (which yields DEL) to backspace return c def cancel(self): os.write(self.pipe_w, "x") def cleanup(self): termios.tcsetattr(self.fd, termios.TCSAFLUSH, self.old) else: raise NotImplementedError( 'Sorry no implementation for your platform ({}) available.'.format(sys.platform)) # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - class Transform(object): """do-nothing: forward all data unchanged""" def rx(self, text): """text received from serial port""" return text def tx(self, text): """text to be sent to serial port""" return text def echo(self, text): """text to be sent but displayed on console""" return text class CRLF(Transform): """ENTER sends CR+LF""" def tx(self, text): return text.replace('\n', '\r\n') class CR(Transform): """ENTER sends CR""" def rx(self, text): return text.replace('\r', '\n') def tx(self, text): return text.replace('\n', '\r') class LF(Transform): """ENTER sends LF""" class NoTerminal(Transform): """remove typical terminal control codes from input""" REPLACEMENT_MAP = dict((x, 0x2400 + x) for x in range(32) if unichr(x) not in '\r\n\b\t') REPLACEMENT_MAP.update( { 0x7F: 0x2421, # DEL 0x9B: 0x2425, # CSI }) def rx(self, text): return text.translate(self.REPLACEMENT_MAP) echo = rx class NoControls(NoTerminal): """Remove all control codes, incl. CR+LF""" REPLACEMENT_MAP = dict((x, 0x2400 + x) for x in range(32)) REPLACEMENT_MAP.update( { 0x20: 0x2423, # visual space 0x7F: 0x2421, # DEL 0x9B: 0x2425, # CSI }) class Printable(Transform): """Show decimal code for all non-ASCII characters and replace most control codes""" def rx(self, text): r = [] for c in text: if ' ' <= c < '\x7f' or c in '\r\n\b\t': r.append(c) elif c < ' ': r.append(unichr(0x2400 + ord(c))) else: r.extend(unichr(0x2080 + ord(d) - 48) for d in '{:d}'.format(ord(c))) r.append(' ') return ''.join(r) echo = rx class Colorize(Transform): """Apply different colors for received and echo""" def __init__(self): # XXX make it configurable, use colorama? self.input_color = '\x1b[37m' self.echo_color = '\x1b[31m' def rx(self, text): return self.input_color + text def echo(self, text): return self.echo_color + text class DebugIO(Transform): """Print what is sent and received""" def rx(self, text): sys.stderr.write(' [RX:{}] '.format(repr(text))) sys.stderr.flush() return text def tx(self, text): sys.stderr.write(' [TX:{}] '.format(repr(text))) sys.stderr.flush() return text # other ideas: # - add date/time for each newline # - insert newline after: a) timeout b) packet end character EOL_TRANSFORMATIONS = { 'crlf': CRLF, 'cr': CR, 'lf': LF, } TRANSFORMATIONS = { 'direct': Transform, # no transformation 'default': NoTerminal, 'nocontrol': NoControls, 'printable': Printable, 'colorize': Colorize, 'debug': DebugIO, } # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - def ask_for_port(): """\ Show a list of ports and ask the user for a choice. To make selection easier on systems with long device names, also allow the input of an index. """ sys.stderr.write('\n--- Available ports:\n') ports = [] for n, (port, desc, hwid) in enumerate(sorted(comports()), 1): sys.stderr.write('--- {:2}: {:20} {}\n'.format(n, port, desc)) ports.append(port) while True: port = raw_input('--- Enter port index or full name: ') try: index = int(port) - 1 if not 0 <= index < len(ports): sys.stderr.write('--- Invalid index!\n') continue except ValueError: pass else: port = ports[index] return port class Miniterm(object): """\ Terminal application. Copy data from serial port to console and vice versa. Handle special keys from the console to show menu etc. """ def __init__(self, serial_instance, echo=False, eol='crlf', filters=()): self.console = Console() self.serial = serial_instance self.echo = echo self.raw = False self.input_encoding = 'UTF-8' self.output_encoding = 'UTF-8' self.eol = eol self.filters = filters self.update_transformations() self.exit_character = 0x1d # GS/CTRL+] self.menu_character = 0x14 # Menu: CTRL+T self.alive = None self._reader_alive = None self.receiver_thread = None self.rx_decoder = None self.tx_decoder = None def _start_reader(self): """Start reader thread""" self._reader_alive = True # start serial->console thread self.receiver_thread = threading.Thread(target=self.reader, name='rx') self.receiver_thread.daemon = True self.receiver_thread.start() def _stop_reader(self): """Stop reader thread only, wait for clean exit of thread""" self._reader_alive = False if hasattr(self.serial, 'cancel_read'): self.serial.cancel_read() self.receiver_thread.join() def start(self): """start worker threads""" self.alive = True self._start_reader() # enter console->serial loop self.transmitter_thread = threading.Thread(target=self.writer, name='tx') self.transmitter_thread.daemon = True self.transmitter_thread.start() self.console.setup() def stop(self): """set flag to stop worker threads""" self.alive = False def join(self, transmit_only=False): """wait for worker threads to terminate""" self.transmitter_thread.join() if not transmit_only: if hasattr(self.serial, 'cancel_read'): self.serial.cancel_read() self.receiver_thread.join() def close(self): self.serial.close() def update_transformations(self): """take list of transformation classes and instantiate them for rx and tx""" transformations = [EOL_TRANSFORMATIONS[self.eol]] + [TRANSFORMATIONS[f] for f in self.filters] self.tx_transformations = [t() for t in transformations] self.rx_transformations = list(reversed(self.tx_transformations)) def set_rx_encoding(self, encoding, errors='replace'): """set encoding for received data""" self.input_encoding = encoding self.rx_decoder = codecs.getincrementaldecoder(encoding)(errors) def set_tx_encoding(self, encoding, errors='replace'): """set encoding for transmitted data""" self.output_encoding = encoding self.tx_encoder = codecs.getincrementalencoder(encoding)(errors) def dump_port_settings(self): """Write current settings to sys.stderr""" sys.stderr.write("\n--- Settings: {p.name} {p.baudrate},{p.bytesize},{p.parity},{p.stopbits}\n".format( p=self.serial)) sys.stderr.write('--- RTS: {:8} DTR: {:8} BREAK: {:8}\n'.format( ('active' if self.serial.rts else 'inactive'), ('active' if self.serial.dtr else 'inactive'), ('active' if self.serial.break_condition else 'inactive'))) try: sys.stderr.write('--- CTS: {:8} DSR: {:8} RI: {:8} CD: {:8}\n'.format( ('active' if self.serial.cts else 'inactive'), ('active' if self.serial.dsr else 'inactive'), ('active' if self.serial.ri else 'inactive'), ('active' if self.serial.cd else 'inactive'))) except serial.SerialException: # on RFC 2217 ports, it can happen if no modem state notification was # yet received. ignore this error. pass sys.stderr.write('--- software flow control: {}\n'.format('active' if self.serial.xonxoff else 'inactive')) sys.stderr.write('--- hardware flow control: {}\n'.format('active' if self.serial.rtscts else 'inactive')) sys.stderr.write('--- serial input encoding: {}\n'.format(self.input_encoding)) sys.stderr.write('--- serial output encoding: {}\n'.format(self.output_encoding)) sys.stderr.write('--- EOL: {}\n'.format(self.eol.upper())) sys.stderr.write('--- filters: {}\n'.format(' '.join(self.filters))) def reader(self): """loop and copy serial->console""" try: while self.alive and self._reader_alive: # read all that is there or wait for one byte data = self.serial.read(self.serial.in_waiting or 1) if data: if self.raw: self.console.write_bytes(data) else: text = self.rx_decoder.decode(data) for transformation in self.rx_transformations: text = transformation.rx(text) self.console.write(text) except serial.SerialException: self.alive = False self.console.cancel() raise # XXX handle instead of re-raise? def writer(self): """\ Loop and copy console->serial until self.exit_character character is found. When self.menu_character is found, interpret the next key locally. """ menu_active = False try: while self.alive: try: c = self.console.getkey() except KeyboardInterrupt: c = '\x03' if not self.alive: break if menu_active: self.handle_menu_key(c) menu_active = False elif c == self.menu_character: menu_active = True # next char will be for menu elif c == self.exit_character: self.stop() # exit app break else: #~ if self.raw: text = c for transformation in self.tx_transformations: text = transformation.tx(text) self.serial.write(self.tx_encoder.encode(text)) if self.echo: echo_text = c for transformation in self.tx_transformations: echo_text = transformation.echo(echo_text) self.console.write(echo_text) except: self.alive = False raise def handle_menu_key(self, c): """Implement a simple menu / settings""" if c == self.menu_character or c == self.exit_character: # Menu/exit character again -> send itself self.serial.write(self.tx_encoder.encode(c)) if self.echo: self.console.write(c) elif c == '\x15': # CTRL+U -> upload file sys.stderr.write('\n--- File to upload: ') sys.stderr.flush() with self.console: filename = sys.stdin.readline().rstrip('\r\n') if filename: try: with open(filename, 'rb') as f: sys.stderr.write('--- Sending file {} ---\n'.format(filename)) while True: block = f.read(1024) if not block: break self.serial.write(block) # Wait for output buffer to drain. self.serial.flush() sys.stderr.write('.') # Progress indicator. sys.stderr.write('\n--- File {} sent ---\n'.format(filename)) except IOError as e: sys.stderr.write('--- ERROR opening file {}: {} ---\n'.format(filename, e)) elif c in '\x08hH?': # CTRL+H, h, H, ? -> Show help sys.stderr.write(self.get_help_text()) elif c == '\x12': # CTRL+R -> Toggle RTS self.serial.rts = not self.serial.rts sys.stderr.write('--- RTS {} ---\n'.format('active' if self.serial.rts else 'inactive')) elif c == '\x04': # CTRL+D -> Toggle DTR self.serial.dtr = not self.serial.dtr sys.stderr.write('--- DTR {} ---\n'.format('active' if self.serial.dtr else 'inactive')) elif c == '\x02': # CTRL+B -> toggle BREAK condition self.serial.break_condition = not self.serial.break_condition sys.stderr.write('--- BREAK {} ---\n'.format('active' if self.serial.break_condition else 'inactive')) elif c == '\x05': # CTRL+E -> toggle local echo self.echo = not self.echo sys.stderr.write('--- local echo {} ---\n'.format('active' if self.echo else 'inactive')) elif c == '\x06': # CTRL+F -> edit filters sys.stderr.write('\n--- Available Filters:\n') sys.stderr.write('\n'.join( '--- {:<10} = {.__doc__}'.format(k, v) for k, v in sorted(TRANSFORMATIONS.items()))) sys.stderr.write('\n--- Enter new filter name(s) [{}]: '.format(' '.join(self.filters))) with self.console: new_filters = sys.stdin.readline().lower().split() if new_filters: for f in new_filters: if f not in TRANSFORMATIONS: sys.stderr.write('--- unknown filter: {}'.format(repr(f))) break else: self.filters = new_filters self.update_transformations() sys.stderr.write('--- filters: {}\n'.format(' '.join(self.filters))) elif c == '\x0c': # CTRL+L -> EOL mode modes = list(EOL_TRANSFORMATIONS) # keys eol = modes.index(self.eol) + 1 if eol >= len(modes): eol = 0 self.eol = modes[eol] sys.stderr.write('--- EOL: {} ---\n'.format(self.eol.upper())) self.update_transformations() elif c == '\x01': # CTRL+A -> set encoding sys.stderr.write('\n--- Enter new encoding name [{}]: '.format(self.input_encoding)) with self.console: new_encoding = sys.stdin.readline().strip() if new_encoding: try: codecs.lookup(new_encoding) except LookupError: sys.stderr.write('--- invalid encoding name: {}\n'.format(new_encoding)) else: self.set_rx_encoding(new_encoding) self.set_tx_encoding(new_encoding) sys.stderr.write('--- serial input encoding: {}\n'.format(self.input_encoding)) sys.stderr.write('--- serial output encoding: {}\n'.format(self.output_encoding)) elif c == '\x09': # CTRL+I -> info self.dump_port_settings() #~ elif c == '\x01': # CTRL+A -> cycle escape mode #~ elif c == '\x0c': # CTRL+L -> cycle linefeed mode elif c in 'pP': # P -> change port with self.console: try: port = ask_for_port() except KeyboardInterrupt: port = None if port and port != self.serial.port: # reader thread needs to be shut down self._stop_reader() # save settings settings = self.serial.getSettingsDict() try: new_serial = serial.serial_for_url(port, do_not_open=True) # restore settings and open new_serial.applySettingsDict(settings) new_serial.rts = self.serial.rts new_serial.dtr = self.serial.dtr new_serial.open() new_serial.break_condition = self.serial.break_condition except Exception as e: sys.stderr.write('--- ERROR opening new port: {} ---\n'.format(e)) new_serial.close() else: self.serial.close() self.serial = new_serial sys.stderr.write('--- Port changed to: {} ---\n'.format(self.serial.port)) # and restart the reader thread self._start_reader() elif c in 'bB': # B -> change baudrate sys.stderr.write('\n--- Baudrate: ') sys.stderr.flush() with self.console: backup = self.serial.baudrate try: self.serial.baudrate = int(sys.stdin.readline().strip()) except ValueError as e: sys.stderr.write('--- ERROR setting baudrate: {} ---\n'.format(e)) self.serial.baudrate = backup else: self.dump_port_settings() elif c == '8': # 8 -> change to 8 bits self.serial.bytesize = serial.EIGHTBITS self.dump_port_settings() elif c == '7': # 7 -> change to 8 bits self.serial.bytesize = serial.SEVENBITS self.dump_port_settings() elif c in 'eE': # E -> change to even parity self.serial.parity = serial.PARITY_EVEN self.dump_port_settings() elif c in 'oO': # O -> change to odd parity self.serial.parity = serial.PARITY_ODD self.dump_port_settings() elif c in 'mM': # M -> change to mark parity self.serial.parity = serial.PARITY_MARK self.dump_port_settings() elif c in 'sS': # S -> change to space parity self.serial.parity = serial.PARITY_SPACE self.dump_port_settings() elif c in 'nN': # N -> change to no parity self.serial.parity = serial.PARITY_NONE self.dump_port_settings() elif c == '1': # 1 -> change to 1 stop bits self.serial.stopbits = serial.STOPBITS_ONE self.dump_port_settings() elif c == '2': # 2 -> change to 2 stop bits self.serial.stopbits = serial.STOPBITS_TWO self.dump_port_settings() elif c == '3': # 3 -> change to 1.5 stop bits self.serial.stopbits = serial.STOPBITS_ONE_POINT_FIVE self.dump_port_settings() elif c in 'xX': # X -> change software flow control self.serial.xonxoff = (c == 'X') self.dump_port_settings() elif c in 'rR': # R -> change hardware flow control self.serial.rtscts = (c == 'R') self.dump_port_settings() else: sys.stderr.write('--- unknown menu character {} --\n'.format(key_description(c))) def get_help_text(self): """return the help text""" # help text, starts with blank line! return """ --- pySerial ({version}) - miniterm - help --- --- {exit:8} Exit program --- {menu:8} Menu escape key, followed by: --- Menu keys: --- {menu:7} Send the menu character itself to remote --- {exit:7} Send the exit character itself to remote --- {info:7} Show info --- {upload:7} Upload file (prompt will be shown) --- {repr:7} encoding --- {filter:7} edit filters --- Toggles: --- {rts:7} RTS {dtr:7} DTR {brk:7} BREAK --- {echo:7} echo {eol:7} EOL --- --- Port settings ({menu} followed by the following): --- p change port --- 7 8 set data bits --- N E O S M change parity (None, Even, Odd, Space, Mark) --- 1 2 3 set stop bits (1, 2, 1.5) --- b change baud rate --- x X disable/enable software flow control --- r R disable/enable hardware flow control """.format(version=getattr(serial, 'VERSION', 'unknown version'), exit=key_description(self.exit_character), menu=key_description(self.menu_character), rts=key_description('\x12'), dtr=key_description('\x04'), brk=key_description('\x02'), echo=key_description('\x05'), info=key_description('\x09'), upload=key_description('\x15'), repr=key_description('\x01'), filter=key_description('\x06'), eol=key_description('\x0c')) # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # default args can be used to override when calling main() from an other script # e.g to create a miniterm-my-device.py def main(default_port=None, default_baudrate=9600, default_rts=None, default_dtr=None): """Command line tool, entry point""" import argparse parser = argparse.ArgumentParser( description="Miniterm - A simple terminal program for the serial port.") parser.add_argument( "port", nargs='?', help="serial port name ('-' to show port list)", default=default_port) parser.add_argument( "baudrate", nargs='?', type=int, help="set baud rate, default: %(default)s", default=default_baudrate) group = parser.add_argument_group("port settings") group.add_argument( "--parity", choices=['N', 'E', 'O', 'S', 'M'], type=lambda c: c.upper(), help="set parity, one of {N E O S M}, default: N", default='N') group.add_argument( "--rtscts", action="store_true", help="enable RTS/CTS flow control (default off)", default=False) group.add_argument( "--xonxoff", action="store_true", help="enable software flow control (default off)", default=False) group.add_argument( "--rts", type=int, help="set initial RTS line state (possible values: 0, 1)", default=default_rts) group.add_argument( "--dtr", type=int, help="set initial DTR line state (possible values: 0, 1)", default=default_dtr) group.add_argument( "--ask", action="store_true", help="ask again for port when open fails", default=False) group = parser.add_argument_group("data handling") group.add_argument( "-e", "--echo", action="store_true", help="enable local echo (default off)", default=False) group.add_argument( "--encoding", dest="serial_port_encoding", metavar="CODEC", help="set the encoding for the serial port (e.g. hexlify, Latin1, UTF-8), default: %(default)s", default='UTF-8') group.add_argument( "-f", "--filter", action="append", metavar="NAME", help="add text transformation", default=[]) group.add_argument( "--eol", choices=['CR', 'LF', 'CRLF'], type=lambda c: c.upper(), help="end of line mode", default='CRLF') group.add_argument( "--raw", action="store_true", help="Do no apply any encodings/transformations", default=False) group = parser.add_argument_group("hotkeys") group.add_argument( "--exit-char", type=int, metavar='NUM', help="Unicode of special character that is used to exit the application, default: %(default)s", default=0x1d) # GS/CTRL+] group.add_argument( "--menu-char", type=int, metavar='NUM', help="Unicode code of special character that is used to control miniterm (menu), default: %(default)s", default=0x14) # Menu: CTRL+T group = parser.add_argument_group("diagnostics") group.add_argument( "-q", "--quiet", action="store_true", help="suppress non-error messages", default=False) group.add_argument( "--develop", action="store_true", help="show Python traceback on error", default=False) args = parser.parse_args() if args.menu_char == args.exit_char: parser.error('--exit-char can not be the same as --menu-char') if args.filter: if 'help' in args.filter: sys.stderr.write('Available filters:\n') sys.stderr.write('\n'.join( '{:<10} = {.__doc__}'.format(k, v) for k, v in sorted(TRANSFORMATIONS.items()))) sys.stderr.write('\n') sys.exit(1) filters = args.filter else: filters = ['default'] while True: # no port given on command line -> ask user now if args.port is None or args.port == '-': try: args.port = ask_for_port() except KeyboardInterrupt: sys.stderr.write('\n') parser.error('user aborted and port is not given') else: if not args.port: parser.error('port is not given') try: serial_instance = serial.serial_for_url( args.port, args.baudrate, parity=args.parity, rtscts=args.rtscts, xonxoff=args.xonxoff, do_not_open=True) if not hasattr(serial_instance, 'cancel_read'): # enable timeout for alive flag polling if cancel_read is not available serial_instance.timeout = 1 if args.dtr is not None: if not args.quiet: sys.stderr.write('--- forcing DTR {}\n'.format('active' if args.dtr else 'inactive')) serial_instance.dtr = args.dtr if args.rts is not None: if not args.quiet: sys.stderr.write('--- forcing RTS {}\n'.format('active' if args.rts else 'inactive')) serial_instance.rts = args.rts serial_instance.open() except serial.SerialException as e: sys.stderr.write('could not open port {}: {}\n'.format(repr(args.port), e)) if args.develop: raise if not args.ask: sys.exit(1) else: args.port = '-' else: break miniterm = Miniterm( serial_instance, echo=args.echo, eol=args.eol.lower(), filters=filters) miniterm.exit_character = unichr(args.exit_char) miniterm.menu_character = unichr(args.menu_char) miniterm.raw = args.raw miniterm.set_rx_encoding(args.serial_port_encoding) miniterm.set_tx_encoding(args.serial_port_encoding) if not args.quiet: sys.stderr.write('--- Miniterm on {p.name} {p.baudrate},{p.bytesize},{p.parity},{p.stopbits} ---\n'.format( p=miniterm.serial)) sys.stderr.write('--- Quit: {} | Menu: {} | Help: {} followed by {} ---\n'.format( key_description(miniterm.exit_character), key_description(miniterm.menu_character), key_description(miniterm.menu_character), key_description('\x08'))) miniterm.start() try: miniterm.join(True) except KeyboardInterrupt: pass if not args.quiet: sys.stderr.write("\n--- exit ---\n") miniterm.join() miniterm.close() # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - if __name__ == '__main__': main()