Python twisted.python.usage.error() Examples

def opt_reactor(self, shortName):
        """
        Which reactor to use (see --help-reactors for a list of possibilities)
        """
        # Actually actually actually install the reactor right at this very
        # moment, before any other code (for example, a sub-command plugin)
        # runs and accidentally imports and installs the default reactor.
        #
        # This could probably be improved somehow.
        try:
            installReactor(shortName)
        except NoSuchReactor:
            msg = ("The specified reactor does not exist: '%s'.\n"
                   "See the list of available reactors with "
                   "--help-reactors" % (shortName,))
            raise usage.UsageError(msg)
        except Exception as e:
            msg = ("The specified reactor cannot be used, failed with error: "
                   "%s.\nSee the list of available reactors with "
                   "--help-reactors" % (e,))
            raise usage.UsageError(msg)
        else:
            self["reactor"] = shortName 

def runService(service):
    """Run the `service`."""
    config = Options()
    args = [
        "--logger=provisioningserver.logger.EventLogger",
        "--nodaemon",
        "--pidfile=",
    ]
    args += sys.argv[1:]
    args += [service]
    try:
        config.parseOptions(args)
    except usage.error as exc:
        print(config)
        print("%s: %s" % (sys.argv[0], exc))
    else:
        UnixApplicationRunner(config).run() 

def opt_reactor(self, shortName):
        """
        Which reactor to use (see --help-reactors for a list of possibilities)
        """
        # Actually actually actually install the reactor right at this very
        # moment, before any other code (for example, a sub-command plugin)
        # runs and accidentally imports and installs the default reactor.
        #
        # This could probably be improved somehow.
        try:
            installReactor(shortName)
        except NoSuchReactor:
            msg = ("The specified reactor does not exist: '%s'.\n"
                   "See the list of available reactors with "
                   "--help-reactors" % (shortName,))
            raise usage.UsageError(msg)
        except Exception as e:
            msg = ("The specified reactor cannot be used, failed with error: "
                   "%s.\nSee the list of available reactors with "
                   "--help-reactors" % (e,))
            raise usage.UsageError(msg)
        else:
            self["reactor"] = shortName 

def opt_reactor(self, shortName):
        """
        Which reactor to use (see --help-reactors for a list of possibilities)
        """
        # Actually actually actually install the reactor right at this very
        # moment, before any other code (for example, a sub-command plugin)
        # runs and accidentally imports and installs the default reactor.
        #
        # This could probably be improved somehow.
        try:
            installReactor(shortName)
        except NoSuchReactor:
            msg = ("The specified reactor does not exist: '%s'.\n"
                   "See the list of available reactors with "
                   "--help-reactors" % (shortName,))
            raise usage.UsageError(msg)
        except Exception, e:
            msg = ("The specified reactor cannot be used, failed with error: "
                   "%s.\nSee the list of available reactors with "
                   "--help-reactors" % (e,))
            raise usage.UsageError(msg) 

def run(runApp, ServerOptions):
    config = ServerOptions()
    try:
        config.parseOptions()
    except usage.error, ue:
        print config
        print "%s: %s" % (sys.argv[0], ue) 

def run(self):
        opts = Options()
        try:
            opts.parseOptions()
            if not opts['branch']:
                print("You must supply a branch with -b or --branch.")
                sys.exit(1)

        except usage.error as ue:
            print(opts)
            print("%s: %s" % (sys.argv[0], ue))
            sys.exit()

        changes = self.getChanges(opts)
        if opts['dryrun']:
            for k in changes.keys():
                print("[%10s]: %s" % (k, changes[k]))
            print("*NOT* sending any changes")
            return

        d = self.sendChanges(opts, changes)

        def quit(*why):
            print("quitting! because", why)
            reactor.stop()

        @d.addErrback(failed)
        def failed(f):
            print("FAILURE: %s" % f)
            reactor.stop()

        d.addCallback(quit, "SUCCESS")
        reactor.callLater(60, quit, "TIMEOUT")

        reactor.run() 

def postOptions(self):
        if self['repository'] is None:
            raise usage.error("You must pass --repository") 

def run(self):
        opts = Options()
        try:
            opts.parseOptions()
        except usage.error as ue:
            print(opts)
            print("%s: %s" % (sys.argv[0], ue))
            sys.exit()

        changes = self.getChanges(opts)
        if opts['dryrun']:
            for i, c in enumerate(changes):
                print("CHANGE #%d" % (i + 1))
                keys = sorted(c.keys())
                for k in keys:
                    print("[%10s]: %s" % (k, c[k]))
            print("*NOT* sending any changes")
            return

        d = self.sendChanges(opts, changes)

        def quit(*why):
            print("quitting! because", why)
            reactor.stop()

        d.addCallback(quit, "SUCCESS")

        @d.addErrback
        def failed(f):
            print("FAILURE")
            print(f)
            reactor.stop()

        reactor.callLater(60, quit, "TIMEOUT")
        reactor.run() 

def postOptions(self):
        if self['repository'] is None:
            raise usage.error("You must pass --repository")
        if self._includes:
            self['includes'] = '(%s)' % ('|'.join(self._includes), )
        if self._excludes:
            self['excludes'] = '(%s)' % ('|'.join(self._excludes), ) 

def run():
    if len(sys.argv) == 1:
        sys.argv.append("--help")
    config = Options()
    try:
        config.parseOptions()
    except usage.error, ue:
        raise SystemExit, "%s: %s" % (sys.argv[0], ue) 

def _supportsColor(self):
        # assuming stderr
        import sys
        if not sys.stderr.isatty():
            return False # auto color only on TTYs
        try:
            import curses
            curses.setupterm()
            return curses.tigetnum("colors") > 2
        except:
            # guess false in case of error
            return False 

def run():

    try:
        config = MyOptions()
        config.parseOptions()
    except usage.error, ue:
        sys.exit("%s: %s" % (sys.argv[0], ue)) 

def run():
    #  parse options
    try:
        config = MyOptions()
        config.parseOptions()
    except usage.error, ue:
         sys.exit("%s: %s" % (sys.argv[0], ue))

    #  set up some useful local variables 

def run(runApp, ServerOptions):
    config = ServerOptions()
    try:
        config.parseOptions()
    except usage.error, ue:
        print config
        print "%s: %s" % (sys.argv[0], ue) 

def run():
    if len(sys.argv) == 1:
        sys.argv.append("--help")
    config = Options()
    try:
        config.parseOptions()
    except usage.error, ue:
        raise SystemExit, "%s: %s" % (sys.argv[0], ue) 

def run(options=None):
    #  parse options
    try:
        config = MyOptions()
        config.parseOptions(options)
    except usage.error, ue:
         sys.exit("%s: %s" % (sys.argv[0], ue))

    #  create RPM build environment 

def _reportImportError(self, module, e):
        """
        Helper method to report an import error with a profile module. This
        has to be explicit because some of these modules are removed by
        distributions due to them being non-free.
        """
        s = "Failed to import module %s: %s" % (module, e)
        s += """
This is most likely caused by your operating system not including
the module due to it being non-free. Either do not use the option
--profile, or install the module; your operating system vendor
may provide it in a separate package.
"""
        raise SystemExit(s) 

def _reportImportError(self, module, e):
        """
        Helper method to report an import error with a profile module. This
        has to be explicit because some of these modules are removed by
        distributions due to them being non-free.
        """
        s = "Failed to import module %s: %s" % (module, e)
        s += """
This is most likely caused by your operating system not including
the module due to it being non-free. Either do not use the option
--profile, or install the module; your operating system vendor
may provide it in a separate package.
"""
        raise SystemExit(s) 

def run():
    if len(sys.argv) == 1:
        sys.argv.append("--help")
    config = Options()
    try:
        config.parseOptions()
    except usage.error as ue:
        raise SystemExit("%s: %s" % (sys.argv[0], ue))
    _initialDebugSetup(config)

    try:
        trialRunner = _makeRunner(config)
    except _DebuggerNotFound as e:
        raise SystemExit('%s: %s' % (sys.argv[0], str(e)))

    suite = _getSuite(config)
    if config['until-failure']:
        test_result = trialRunner.runUntilFailure(suite)
    else:
        test_result = trialRunner.run(suite)
    if config.tracer:
        sys.settrace(None)
        results = config.tracer.results()
        results.write_results(show_missing=1, summary=False,
                              coverdir=config.coverdir().path)
    sys.exit(not test_result.wasSuccessful()) 

def run(runApp, ServerOptions):
    config = ServerOptions()
    try:
        config.parseOptions()
    except usage.error as ue:
        print(config)
        print("%s: %s" % (sys.argv[0], ue))
    else:
        runApp(config) 

def _reportImportError(self, module, e):
        """
        Helper method to report an import error with a profile module. This
        has to be explicit because some of these modules are removed by
        distributions due to them being non-free.
        """
        s = "Failed to import module %s: %s" % (module, e)
        s += """
This is most likely caused by your operating system not including
the module due to it being non-free. Either do not use the option
--profile, or install the module; your operating system vendor
may provide it in a separate package.
"""
        raise SystemExit(s) 

def run():
    if len(sys.argv) == 1:
        sys.argv.append("--help")
    config = Options()
    try:
        config.parseOptions()
    except usage.error as ue:
        raise SystemExit("%s: %s" % (sys.argv[0], ue))
    _initialDebugSetup(config)

    try:
        trialRunner = _makeRunner(config)
    except _DebuggerNotFound as e:
        raise SystemExit('%s: %s' % (sys.argv[0], str(e)))

    suite = _getSuite(config)
    if config['until-failure']:
        test_result = trialRunner.runUntilFailure(suite)
    else:
        test_result = trialRunner.run(suite)
    if config.tracer:
        sys.settrace(None)
        results = config.tracer.results()
        results.write_results(show_missing=1, summary=False,
                              coverdir=config.coverdir().path)
    sys.exit(not test_result.wasSuccessful()) 

def run(runApp, ServerOptions):
    config = ServerOptions()
    try:
        config.parseOptions()
    except usage.error as ue:
        print(config)
        print("%s: %s" % (sys.argv[0], ue))
    else:
        runApp(config) 

def runReactorWithLogging(config, oldstdout, oldstderr, profiler=None, reactor=None):
    """
    Start the reactor, using profiling if specified by the configuration, and
    log any error happening in the process.

    @param config: configuration of the twistd application.
    @type config: L{ServerOptions}

    @param oldstdout: initial value of C{sys.stdout}.
    @type oldstdout: C{file}

    @param oldstderr: initial value of C{sys.stderr}.
    @type oldstderr: C{file}

    @param profiler: object used to run the reactor with profiling.
    @type profiler: L{AppProfiler}

    @param reactor: The reactor to use.  If C{None}, the global reactor will
        be used.
    """
    if reactor is None:
        from twisted.internet import reactor
    try:
        if config['profile']:
            if profiler is not None:
                profiler.run(reactor)
        elif config['debug']:
            sys.stdout = oldstdout
            sys.stderr = oldstderr
            if runtime.platformType == 'posix':
                signal.signal(signal.SIGUSR2, lambda *args: pdb.set_trace())
                signal.signal(signal.SIGINT, lambda *args: pdb.set_trace())
            fixPdb()
            pdb.runcall(reactor.run)
        else:
            reactor.run()
    except:
        if config['nodaemon']:
            file = oldstdout
        else:
            file = open("TWISTD-CRASH.log",'a')
        traceback.print_exc(file=file)
        file.flush() 

def runReactorWithLogging(config, oldstdout, oldstderr, profiler=None,
                          reactor=None):
    """
    Start the reactor, using profiling if specified by the configuration, and
    log any error happening in the process.

    @param config: configuration of the twistd application.
    @type config: L{ServerOptions}

    @param oldstdout: initial value of C{sys.stdout}.
    @type oldstdout: C{file}

    @param oldstderr: initial value of C{sys.stderr}.
    @type oldstderr: C{file}

    @param profiler: object used to run the reactor with profiling.
    @type profiler: L{AppProfiler}

    @param reactor: The reactor to use.  If L{None}, the global reactor will
        be used.
    """
    if reactor is None:
        from twisted.internet import reactor
    try:
        if config['profile']:
            if profiler is not None:
                profiler.run(reactor)
        elif config['debug']:
            sys.stdout = oldstdout
            sys.stderr = oldstderr
            if runtime.platformType == 'posix':
                signal.signal(signal.SIGUSR2, lambda *args: pdb.set_trace())
                signal.signal(signal.SIGINT, lambda *args: pdb.set_trace())
            fixPdb()
            pdb.runcall(reactor.run)
        else:
            reactor.run()
    except:
        close = False
        if config['nodaemon']:
            file = oldstdout
        else:
            file = open("TWISTD-CRASH.log", "a")
            close = True
        try:
            traceback.print_exc(file=file)
            file.flush()
        finally:
            if close:
                file.close() 

def runReactorWithLogging(config, oldstdout, oldstderr, profiler=None,
                          reactor=None):
    """
    Start the reactor, using profiling if specified by the configuration, and
    log any error happening in the process.

    @param config: configuration of the twistd application.
    @type config: L{ServerOptions}

    @param oldstdout: initial value of C{sys.stdout}.
    @type oldstdout: C{file}

    @param oldstderr: initial value of C{sys.stderr}.
    @type oldstderr: C{file}

    @param profiler: object used to run the reactor with profiling.
    @type profiler: L{AppProfiler}

    @param reactor: The reactor to use.  If L{None}, the global reactor will
        be used.
    """
    if reactor is None:
        from twisted.internet import reactor
    try:
        if config['profile']:
            if profiler is not None:
                profiler.run(reactor)
        elif config['debug']:
            sys.stdout = oldstdout
            sys.stderr = oldstderr
            if runtime.platformType == 'posix':
                signal.signal(signal.SIGUSR2, lambda *args: pdb.set_trace())
                signal.signal(signal.SIGINT, lambda *args: pdb.set_trace())
            fixPdb()
            pdb.runcall(reactor.run)
        else:
            reactor.run()
    except:
        close = False
        if config['nodaemon']:
            file = oldstdout
        else:
            file = open("TWISTD-CRASH.log", "a")
            close = True
        try:
            traceback.print_exc(file=file)
            file.flush()
        finally:
            if close:
                file.close()