Python readline.write_history_file() Examples

def run_console(glob):
    import readline
    import rlcompleter
    import atexit
    import code

    history_path = os.path.expanduser("~/.python_history")

    def save_history(history_path=history_path):
        readline.write_history_file(history_path)
    if os.path.exists(history_path):
        readline.read_history_file(history_path)

    atexit.register(save_history)

    readline.set_completer(rlcompleter.Completer(glob).complete)
    readline.parse_and_bind("tab: complete")
    code.InteractiveConsole(locals=glob).interact() 

def save_history(self):
        if self.history_file_full_path is not None:
            global readline
            if readline is None:
                try:
                    import readline
                except ImportError:
                    return
            try:
                readline.write_history_file(self.history_file_full_path)
            except IOError:
                e = sys.exc_info()[1]
                warnings.warn("Cannot save history file, reason: %s" % str(e))

#------------------------------------------------------------------------------
# Main loop

    # Debugging loop. 

def init_readline(complete_method, histfile=None):
    """init the readline library if available"""
    try:
        import readline
        readline.parse_and_bind("tab: complete")
        readline.set_completer(complete_method)
        string = readline.get_completer_delims().replace(':', '')
        readline.set_completer_delims(string)
        if histfile is not None:
            try:
                readline.read_history_file(histfile)
            except IOError:
                pass
            import atexit
            atexit.register(readline.write_history_file, histfile)
    except:
        print('readline si not available :-(') 

def test_nonascii_history(self):
        readline.clear_history()
        try:
            readline.add_history("entrée 1")
        except UnicodeEncodeError as err:
            self.skipTest("Locale cannot encode test data: " + format(err))
        readline.add_history("entrée 2")
        readline.replace_history_item(1, "entrée 22")
        readline.write_history_file(TESTFN)
        self.addCleanup(os.remove, TESTFN)
        readline.clear_history()
        readline.read_history_file(TESTFN)
        if is_editline:
            # An add_history() call seems to be required for get_history_
            # item() to register items from the file
            readline.add_history("dummy")
        self.assertEqual(readline.get_history_item(1), "entrée 1")
        self.assertEqual(readline.get_history_item(2), "entrée 22") 

def setup(self):
        """ Initialization of third-party libraries

        Setting interpreter history.
        Setting appropriate completer function.

        :return:
        """
        if not os.path.exists(self.history_file):
            open(self.history_file, 'a+').close()

        readline.read_history_file(self.history_file)
        readline.set_history_length(self.history_length)
        atexit.register(readline.write_history_file, self.history_file)

        readline.parse_and_bind('set enable-keypad on')

        readline.set_completer(self.complete)
        readline.set_completer_delims(' \t\n;')
        readline.parse_and_bind("tab: complete") 

def setup(self):
        """ Initialization of third-party libraries

        Setting interpreter history.
        Setting appropriate completer function.

        :return:
        """
        if not os.path.exists(self.history_file):
            open(self.history_file, 'a+').close()

        readline.read_history_file(self.history_file)
        readline.set_history_length(self.history_length)
        atexit.register(readline.write_history_file, self.history_file)

        readline.parse_and_bind('set enable-keypad on')

        readline.set_completer(self.complete)
        readline.set_completer_delims(' \t\n;')
        readline.parse_and_bind("tab: complete") 

def enable_history(self, history_file: str) -> None:
        self.histfile = os.path.expanduser(history_file)
        try:
            readline.read_history_file(self.histfile)
        except FileNotFoundError:
            pass
        except PermissionError:
            self.histfile = ""
            print(
                f"Warning: You don't have permissions to read {history_file} and\n"
                "         the command history of this session won't be saved.\n"
                "         Either change this file's permissions, recreate it,\n"
                "         or use an alternate path with the SDB_HISTORY_FILE\n"
                "         environment variable.")
            return
        readline.set_history_length(1000)
        atexit.register(readline.write_history_file, self.histfile) 

def postloop(self):
        """Take care of any unfinished business.
        Despite the claims in the Cmd documentaion, Cmd.postloop() is not a stub.
        """
        try:
            if readline:
                readline.write_history_file(sys.argv[0] + ".history")
        except Exception as err:
            if not isinstance(err, IOError):
                self.stdout.write("history error: %s\n" % err)

        # clean up command completion
        cmd.Cmd.postloop(self)

        if self.interactive:
            self.stdout.write("Exiting...\n")

        # tell the core we have stopped
        core.deferred(core.stop) 

def postloop(self):
        """Take care of any unfinished business.
        Despite the claims in the Cmd documentaion, Cmd.postloop() is not a stub.
        """
        try:
            if readline:
                readline.write_history_file(sys.argv[0] + ".history")
        except Exception as err:
            if not isinstance(err, IOError):
                self.stdout.write("history error: %s\n" % err)

        # clean up command completion
        cmd.Cmd.postloop(self)

        if self.interactive:
            self.stdout.write("Exiting...\n")

        # tell the core we have stopped
        core.deferred(core.stop) 

def save_history(self):
        if self.history_file_full_path is not None:
            global readline
            if readline is None:
                try:
                    import readline
                except ImportError:
                    return
            try:
                readline.write_history_file(self.history_file_full_path)
            except IOError, e:
                warnings.warn("Cannot save history file, reason: %s" % str(e))

#------------------------------------------------------------------------------
# Main loop

    # Debugging loop. 

def hook_readline_hist():
    try:
        import readline
    except ImportError:
        return

    histfile = os.environ['HOME'] + '/.web_develop_history'  # 定义一个存储历史记录的文件地址
    readline.parse_and_bind('tab: complete')
    try:
        readline.read_history_file(histfile)
    except IOError:
        pass  # It doesn't exist yet.

    def savehist():
        try:
            readline.write_history_file(histfile)
        except:
            print 'Unable to save Python command history'
    atexit.register(savehist) 

def save_history(self):
        if self.history_file_full_path is not None:
            global readline
            if readline is None:
                try:
                    import readline
                except ImportError:
                    return
            try:
                readline.write_history_file(self.history_file_full_path)
            except IOError:
                e = sys.exc_info()[1]
                warnings.warn("Cannot save history file, reason: %s" % str(e))

#------------------------------------------------------------------------------
# Main loop

    # Debugging loop. 

def __init__(self):
        """Create the main mode.

        If titus.inspector.defs.CONFIG_DIRECTORY_EXISTS is ``True``, get the readline history file from the user's titus.inspector.defs.CONFIG_DIRECTORY.
        """

        if CONFIG_DIRECTORY_EXISTS:
            self.historyPath = os.path.join(os.path.expanduser(CONFIG_DIRECTORY), self.historyFileName)
            if not os.path.exists(self.historyPath):
                open(self.historyPath, "w").close()

            self.active = True
            self.tabCompleter = TabCompleter(self)
            readline.read_history_file(self.historyPath)
            readline.set_completer(self.tabCompleter.complete)

            def writehistory():
                if self.active:
                    readline.write_history_file(self.historyPath)
            atexit.register(writehistory) 

def start(self):
        self.cmd_manager.init()
        log('%s started - GL HF!' % Color.colorify('frick', 'green highligh'))

        readline.parse_and_bind('tab: complete')
        hist = os.path.join(os.environ['HOME'], '.frick_history')

        try:
            readline.read_history_file(hist)
        except IOError:
            pass
        atexit.register(readline.write_history_file, hist)

        while True:
            inp = six.moves.input().strip()
            if len(inp) > 0:
                self.cmd_manager.handle_command(inp) 

def scapy_write_history_file(readline):
    if conf.histfile:
        try:
            readline.write_history_file(conf.histfile)
        except IOError,e:
            try:
                warning("Could not write history to [%s]\n\t (%s)" % (conf.histfile,e))
                tmp = utils.get_temp_file(keep=True)
                readline.write_history_file(tmp)
                warning("Wrote history to [%s]" % tmp)
            except:
                warning("Cound not write history to [%s]. Discarded" % tmp) 

def save_history(self, histfile):
        readline.write_history_file(histfile) 

def save_history(self):
        if hasReadline and self._history_path:
            readline.set_history_length(1000)
            try:
                readline.write_history_file(self._history_path)
            except:
                pass 

def save_history():
    """
    Save history to file
    """
    try:
        readline.write_history_file(c['HISTORY_FILENAME'])
    except:
        pass 

def scapy_write_history_file(readline):
    if conf.histfile:
        try:
            readline.write_history_file(conf.histfile)
        except IOError,e:
            try:
                warning("Could not write history to [%s]\n\t (%s)" % (conf.histfile,e))
                tmp = utils.get_temp_file(keep=True)
                readline.write_history_file(tmp)
                warning("Wrote history to [%s]" % tmp)
            except:
                warning("Cound not write history to [%s]. Discarded" % tmp) 

def scapy_write_history_file(readline):
    if conf.histfile:
        try:
            readline.write_history_file(conf.histfile)
        except IOError,e:
            try:
                warning("Could not write history to [%s]\n\t (%s)" % (conf.histfile,e))
                tmp = utils.get_temp_file(keep=True)
                readline.write_history_file(tmp)
                warning("Wrote history to [%s]" % tmp)
            except:
                warning("Cound not write history to [%s]. Discarded" % tmp) 

def scapy_write_history_file(readline):
    if conf.histfile:
        try:
            readline.write_history_file(conf.histfile)
        except IOError,e:
            try:
                warning("Could not write history to [%s]\n\t (%s)" % (conf.histfile,e))
                tmp = utils.get_temp_file(keep=True)
                readline.write_history_file(tmp)
                warning("Wrote history to [%s]" % tmp)
            except:
                warning("Cound not write history to [%s]. Discarded" % tmp) 

def scapy_write_history_file(readline):
    if conf.histfile:
        try:
            readline.write_history_file(conf.histfile)
        except IOError,e:
            try:
                warning("Could not write history to [%s]\n\t (%s)" % (conf.histfile,e))
                tmp = utils.get_temp_file(keep=True)
                readline.write_history_file(tmp)
                warning("Wrote history to [%s]" % tmp)
            except:
                warning("Cound not write history to [%s]. Discarded" % tmp) 

def init_history(history_file):
        try:
            import readline
            readline.parse_and_bind('tab: complete')
            if hasattr(readline, "read_history_file"):
                try:
                    readline.read_history_file(history_file)
                except IOError:
                    pass
                register(lambda h: readline.write_history_file(h), history_file)
        except ImportError:
            pass 

def save_histfile(self):
        # Write the command to the history file
        if self.histsize != 0:
            readline.set_history_length(self.histsize)
            readline.write_history_file('cmdhistory') 

def postloop(self):
        """Take care of any unfinished business.
        Despite the claims in the Cmd documentaion, Cmd.postloop() is not a stub.
        """
        try:
            if readline:
                readline.write_history_file(sys.argv[0] + ".history")
        except Exception, err:
            if not isinstance(err, IOError):
                self.stdout.write("history error: %s\n" % err)

        # clean up command completion 

def interact(mgr):
    """
    Shell setup function.

    This function will setup the library, create the default namespace with
    shell symbols, setup the history file, the autocompleter and launch a shell
    session.
    """
    print('Engine nodes available for communication:')
    print('    {}'.format(', '.join(mgr.nodes.keys())))

    # Create and populate shell namespace
    ns = {
        'topology': mgr
    }
    for key, enode in mgr.nodes.items():
        ns[key] = enode

    # Configure readline, history and autocompleter
    import readline

    histfile = join(expanduser('~'), '.topology_history')
    if isfile(histfile):
        try:
            readline.read_history_file(histfile)
        except IOError:
            log.error(format_exc())
    register(readline.write_history_file, histfile)

    completer = NamespaceCompleter(ns)
    readline.set_completer(completer.complete)
    readline.parse_and_bind('tab: complete')

    # Python's Interactive
    from code import interact as pyinteract
    pyinteract('', None, ns) 

def save_history(self, histfile):
        """
        Write history from session to disk
        """
        import readline
        readline.write_history_file(histfile) 

def __completion_init():
	try:
		import readline
		import rlcompleter
		import atexit
		import os
		import sys
	except ImportError:
		return -1
	try:
		readline.parse_and_bind('tab: complete')
	except:
		return -2
	local = os.path.expanduser('~/.local')
	if not os.path.exists(local):
		try:
			os.mkdir(local)
		except:
			return -2
	if not os.path.exists(local + '/var'):
		try:
			os.mkdir(local + '/var')
		except:
			return -3
	history = local + '/var/python%d_hist'%sys.version_info[0]
	try:
		readline.read_history_file(history)
	except:
		pass
	atexit.register(readline.write_history_file, history)
	return 0 

def _load_history(self):
        """Load history file and register dump on exit."""

        # Create a file without truncating it in case it exists.
        open(config.history_path, 'a').close()

        readline.set_history_length(100)
        try:
            readline.read_history_file(config.history_path)
        except IOError:
            pass
        atexit.register(readline.write_history_file,
            config.history_path) 

def history_write(self):
        """
        save history file
        """
        history_file = cfg.get('history_file')
        logger.debug("saving history in {}".format(history_file))
        os.makedirs(os.path.expanduser(os.path.dirname(history_file)), exist_ok=True)
        try:
            readline.write_history_file(os.path.expanduser(history_file))
        except PermissionError:
            logger.warning("failed to write CLI history to {} " +
                            "(no permission)".format(
                history_file))