Python sys.exit() Examples

def parse_args():
  """
  Parse input arguments
  """
  parser = argparse.ArgumentParser(description='Re-evaluate results')
  parser.add_argument('output_dir', nargs=1, help='results directory',
                      type=str)
  parser.add_argument('--imdb', dest='imdb_name',
                      help='dataset to re-evaluate',
                      default='voc_2007_test', type=str)
  parser.add_argument('--comp', dest='comp_mode', help='competition mode',
                      action='store_true')

  if len(sys.argv) == 1:
    parser.print_help()
    sys.exit(1)

  args = parser.parse_args()
  return args 

def retrieve_top_tor_exit_ips(limit=CLOUDFLARE_ACCESS_RULE_LIMIT):
    """
    Retrieve exit information from Onionoo sorted by consensus weight
    """
    exits = {}
    params = {
        'running': True,
        'flag': 'Exit',
        'fields': 'or_addresses,exit_probability',
        'order': '-consensus_weight',
        'limit': limit
    }
    r = requests.get("https://onionoo.torproject.org/details", params=params)
    r.raise_for_status()
    res = r.json()
    for relay in res.get('relays'):
        or_address = relay.get('or_addresses')[0].split(':')[0]
        exit_probability = relay.get('exit_probability', 0.0)
        # Try calculate combined weight for all relays on each IP
        exits[or_address] = exits.get(or_address, 0.0) + exit_probability
    return sorted(exits, key=exits.get, reverse=True) 

def __init__(self):

        self._logger = Util.get_logger('SPOT.COMMON.KERBEROS')
        principal, keytab, sasl_mech, security_proto = config.kerberos()

        if os.getenv('KINITPATH'):
            self._kinit = os.getenv('KINITPATH')
        else:
            self._kinit = "kinit"

        self._kinitopts = os.getenv('KINITOPTS')
        self._keytab = "-kt {0}".format(keytab)
        self._krb_user = principal

        if self._kinit == None or self._keytab == None or self._krb_user == None:
            self._logger.error("Please verify kerberos configuration, some environment variables are missing.")
            sys.exit(1)

        if self._kinitopts is None:
            self._kinit_cmd = "{0} {1} {2}".format(self._kinit, self._keytab, self._krb_user)
        else:
            self._kinit_cmd = "{0} {1} {2} {3}".format(self._kinit, self._kinitopts, self._keytab, self._krb_user) 

def _tests(self):
        settings.configure(
            DEBUG=True,
            DATABASES={
                'default': {
                    'ENGINE': 'django.db.backends.sqlite3',
                    'NAME': os.path.join(self.DIRNAME, 'database.db'),
                }
            },
            INSTALLED_APPS=self.INSTALLED_APPS + self.apps,
            MIDDLEWARE=self.MIDDLEWARE,
            ROOT_URLCONF='django_classified.tests.urls',
            STATIC_URL='/static/',
            TEMPLATES=self.TEMPLATES,
            SITE_ID=1
        )

        from django.test.runner import DiscoverRunner
        test_runner = DiscoverRunner()
        django.setup()

        failures = test_runner.run_tests(self.apps)
        if failures:
            sys.exit(failures) 

def run(self):
        try:
            self.status('Removing previous builds…')
            rmtree(os.path.join(here, 'dist'))
        except OSError:
            pass

        self.status('Building Source and Wheel (universal) distribution…')
        os.system('{0} setup.py sdist bdist_wheel --universal'.format(
            sys.executable
        ))

        self.status('Uploading the package to PyPi via Twine…')
        os.system('twine upload dist/*')

        sys.exit() 

def checkRequirements(args):
    if not remap.check_swalign():
        print("ERROR: check that svviz is correctly installed -- the 'ssw' Smith-Waterman alignment module does not appear to be functional")
        sys.exit(1)
    if args.export:
        exportFormat = export.getExportFormat(args)
        converter = export.getExportConverter(args, exportFormat)
        if converter is None and exportFormat != "svg":
            if args.converter is not None:
                logging.error("ERROR: unable to run SVG converter '{}'. Please check that it is "
                    "installed correctly".format(args.converter))
            else:
                logging.error("ERROR: unable to export to PDF/PNG because at least one of the following "
                    "programs must be correctly installed: webkitToPDF, librsvg or inkscape")

            sys.exit(1) 

def getExportConverter(args, exportFormat):
    if args.converter == "webkittopdf" and exportFormat=="png":
        logging.error("webkitToPDF does not support export to PNG; use librsvg or inkscape instead, or "
            "export to PDF")
        sys.exit(1)

    if exportFormat == "png" and args.converter is None:
        return "librsvg"

    if args.converter == "rsvg-convert":
        return "librsvg"

    if args.converter in [None, "webkittopdf"]:
        if checkWebkitToPDF():
            return "webkittopdf"

    if args.converter in [None, "librsvg"]:
        if checkRSVGConvert():
            return "librsvg"

    if args.converter in [None, "inkscape"]:
        if checkInkscape():
            return "inkscape"

    return None 

def validate_parameters_values(args,logger):

    logger.info("Validating input parameter values")

    #date.
    is_date_ok = True if len(args.date) == 8 else False

    # type
    dirs = os.walk(script_path).next()[1]
    is_type_ok = True if args.type in dirs else False

    #limit
    try:
        int(args.limit)
        is_limit_ok = True
    except ValueError:
        is_limit_ok = False

    if not is_date_ok: logger.error("date parameter is not correct, please validate it")
    if not is_type_ok: logger.error("type parameter is not supported, please select a valid type")
    if not is_limit_ok: logger.error("limit parameter is not correct, please select a valid limit")
    if not is_date_ok or not is_type_ok or not is_limit_ok: sys.exit(1) 

def _get_proxy_results(self):

        self._logger.info("Getting {0} Machine Learning Results from HDFS".format(self._date))
        proxy_results = "{0}/proxy_results.csv".format(self._data_path)

        # get hdfs path from conf file.
        HUSER = self._spot_conf.get('conf', 'HUSER').replace("'", "").replace('"', '')
        hdfs_path = "{0}/proxy/scored_results/{1}/scores/proxy_results.csv".format(HUSER,self._date)

        # get results file from hdfs.
        get_command = Util.get_ml_results_form_hdfs(hdfs_path,self._data_path)
        self._logger.info("{0}".format(get_command))

         # valdiate files exists
        if os.path.isfile(proxy_results):

            # read number of results based in the limit specified.
            self._logger.info("Reading {0} proxy results file: {1}".format(self._date,proxy_results))
            self._proxy_results = Util.read_results(proxy_results,self._limit,self._results_delimiter)[:]
            if len(self._proxy_results) == 0: self._logger.error("There are not proxy results.");sys.exit(1)
        else:
            self._logger.error("There was an error getting ML results from HDFS")
            sys.exit(1)

        self._proxy_scores = self._proxy_results[:] 

def main(raw_args):
    import cmd_utils

    parser = cmd_utils.build_arg_parser(description='Builds LLVM for Mono')

    default_help = 'default: %(default)s'

    parser.add_argument('action', choices=['make', 'clean'])
    parser.add_argument('--target', choices=target_values, action='append', required=True)

    cmd_utils.add_base_arguments(parser, default_help)

    args = parser.parse_args(raw_args)

    opts = base_opts_from_args(args)
    targets = args.target

    try:
        for target in targets:
            action = { 'make': make, 'clean': clean }[args.action]
            action(opts, target)
    except BuildError as e:
        sys.exit(e.message) 

def __init__(self, app):
        """
        Initialisation of qi framework and event detection.
        """
        super(HumanTrackedEventWatcher, self).__init__()

        try:
            app.start()
        except RuntimeError:
            print ("Can't connect to Naoqi at ip \"" + args.ip + "\" on port " +
                   str(args.port) + ".\n")

            sys.exit(1)

        session = app.session
        self.subscribers_list = []
        self.is_speech_reco_started = False

        # SUBSCRIBING SERVICES
        self.tts             = session.service("ALTextToSpeech")
        self.memory          = session.service("ALMemory")
        self.motion          = session.service("ALMotion")
        self.speech_reco     = session.service("ALSpeechRecognition")
        self.basic_awareness = session.service("ALBasicAwareness") 

def run(self):
        """
        Loop on, wait for events until manual interruption.
        """
        # start
        print "Waiting for the robot to be in wake up position"
        self.motion.wakeUp()

        print "Starting HumanGreeter"
        try:
            while True:
                time.sleep(1)
        except KeyboardInterrupt:
            print "Interrupted by user, stopping HumanGreeter"
            self.face_detection.unsubscribe("HumanGreeter")
            #stop
            sys.exit(0)

        return 

def _moveForward(self, amnt):
        #TARGET VELOCITY
        X = 0.5  # forward
        Y = 0.0
        Theta = 0.0

        try:
            self.motion.moveToward(X, Y, Theta)
        except KeyboardInterrupt:
            print "KeyBoard Interrupt initiated"
            self.motion.stopMove()
            exit()
        except Exception, errorMsg:
            print str(errorMsg)
            print "This example is not allowed on this robot."
            exit() 

def _rotateRight(self, amnt):
        #TARGET VELOCITY
        X = 0.0
        Y = 0.0
        Theta = -0.5

        try:
            self.motion.moveToward(X, Y, Theta)
        except KeyboardInterrupt:
            print "KeyBoard Interrupt initiated"
            self.motion.stopMove()
            exit()
        except Exception, errorMsg:
            print str(errorMsg)
            print "This example is not allowed on this robot."
            exit() 

def _rotateLeft(self, amnt):
        #TARGET VELOCITY
        X = 0.0
        Y = 0.0
        Theta = 0.5

        try:
            self.motion.moveToward(X, Y, Theta)
        except KeyboardInterrupt:
            print "KeyBoard Interrupt initiated"
            self.motion.stopMove()
            exit()
        except Exception, errorMsg:
            print str(errorMsg)
            print "This example is not allowed on this robot."
            exit() 

def _moveForward(self, amnt):
        #TARGET VELOCITY
        X = 0.5  # forward
        Y = 0.0
        Theta = 0.0

        try:
            self.motion_service.moveToward(X, Y, Theta)
        except KeyboardInterrupt:
            print "KeyBoard Interrupt initiated"
            self.motion_service.stopMove()
            exit()
        except Exception, errorMsg:
            print str(errorMsg)
            print "This example is not allowed on this robot."
            exit() 

def _moveBackward(self, amnt):
        #TARGET VELOCITY
        X = -0.5  # backward
        Y = 0.0
        Theta = 0.0

        try:
            self.motion_service.moveToward(X, Y, Theta)
        except KeyboardInterrupt:
            print "KeyBoard Interrupt initiated"
            self.motion_service.stopMove()
            exit()
        except Exception, errorMsg:
            print str(errorMsg)
            print "This example is not allowed on this robot."
            exit() 

def _rotateLeft(self, amnt):
        #TARGET VELOCITY
        X = 0.0
        Y = 0.0
        Theta = 0.5

        try:
            self.motion_service.moveToward(X, Y, Theta)
        except KeyboardInterrupt:
            print "KeyBoard Interrupt initiated"
            self.motion_service.stopMove()
            exit()
        except Exception, errorMsg:
            print str(errorMsg)
            print "This example is not allowed on this robot."
            exit() 

def check_dependencies_or_exit():
    dependencies = [
            which("e2cp",
                ubuntu="apt-get install e2tools",
                arch="yaourt -S e2tools",
                darwin="brew install e2tools gettext e2fsprogs\nbrew unlink e2fsprogs && brew link e2fsprogs -f"),
            which("qemu-system-arm",
                  ubuntu="apt-get install qemu",
                  kali="apt-get install qemu-system",
                  arch="pacman -S qemu-arch-extra",
                  darwin="brew install qemu"),
            which("unzip",
                ubuntu="apt-get install unzip",
                arch="pacman -S unzip",
                darwin="brew install unzip")
            ]
    if not all(dependencies):
        print("requirements missing, plz install them", file=sys.stderr)
        sys.exit(1) 

def getEndpoints(switchHostnames, protocol, username, password):
   """ Check that each server is up, and return a mapping from
   hostname to jsonrpclib.Server """
   apiEndpoints = {} # mapping from hostname to the API endpoint
   for switch in switchHostnames:
      url = "{protocol}://{user}:{pw}@{hostname}/command-api".format(
         protocol=protocol, user=username, pw=password, hostname=switch)
      server = jsonrpclib.Server(url)
      try:
         # We should at least be able to 'enable'
         server.runCmds(1, ["enable"])
      except Exception as e:
         print "Unable to run 'enable' on switch", e
         sys.exit(1)
      apiEndpoints[switch] = server
   return apiEndpoints 

def applyChanges(aclName, apiEndpoints, aclRules):
   """ Given the switch mapping and a list of the new ACL rules, apply
   the ACL to each switch """
   cmdList = ["enable",
              "configure",
              # Not the most efficient way to clear an ACL:
                 "no ip access-list %s" % aclName,
              # Now enter configuration mode for the ACL:
                 "ip access-list %s" % aclName]
   cmdList = cmdList + aclRules + ["exit"]
   
   for hostname, apiEndpoint in apiEndpoints.iteritems():
      print "Updating access list on switch", hostname, "....",
      try:
         apiEndpoint.runCmds(1, cmdList)
      except jsonrpclib.ProtocolError as e:
         print "[ERROR]"
         print "  ", e
         # jsonrpclib isn't very friendly at getting the error data as
         # specified by the spec. This is a shortcut for getting the
         # last error:
         errorResponse = jsonrpclib.loads(jsonrpclib.history.response)
         print "   Details:", errorResponse["error"]["data"][-1]["errors"]
      else:
         print "[SUCCESS]" 

def run(self):
        try:
            self.status('Removing previous builds...')
            rmtree(os.path.join(base_path, 'dist'))
        except OSError:
            pass

        self.status('Building Source and Wheel (universal) distribution...')
        os.system('{0} setup.py sdist bdist_wheel'.format(sys.executable))

        self.status('Pushing git tags...')
        os.system('git tag v{0}'.format(get_version()))
        os.system('git push --tags')

        try:
            self.status('Removing build artifacts...')
            rmtree(os.path.join(base_path, 'build'))
            rmtree(os.path.join(base_path, '{}.egg-info'.format(PACKAGE_NAME)))
        except OSError:
            pass

        sys.exit() 

def load_project(project_name):
    # load project and check that it looks okay
    try:
        importlib.import_module(project_name)
    except ImportError as e:
        try:
            #TODO: relative module imports in a projects/Project will fail for some reason
            importlib.import_module("projects.%s" % project_name)
        except ImportError as e:
            log.error("Failed to import project %s", project_name, exc_info=1)
            sys.exit(1)
    if len(_registered) != 1:
        log.error("Project must register itself using alf.register(). "
                  "%d projects registered, expecting 1.", len(_registered))
        sys.exit(1)
    project_cls = _registered.pop()
    if not issubclass(project_cls, Fuzzer):
        raise TypeError("Expecting a Fuzzer, not '%s'" % type(project_cls))
    return project_cls 

def __call__(self, *args, **kwargs):
        """Trap ``SIGTERM`` and call wrapped function."""
        self._caught_signal = None
        # Register handler for SIGTERM, then call `self.func`
        self.old_signal_handler = signal.getsignal(signal.SIGTERM)
        signal.signal(signal.SIGTERM, self.signal_handler)

        self.func(*args, **kwargs)

        # Restore old signal handler
        signal.signal(signal.SIGTERM, self.old_signal_handler)

        # Handle any signal caught during execution
        if self._caught_signal is not None:
            signum, frame = self._caught_signal
            if callable(self.old_signal_handler):
                self.old_signal_handler(signum, frame)
            elif self.old_signal_handler == signal.SIG_DFL:
                sys.exit(0) 

def parse_args():
  """
  Parse input arguments
  """
  parser = argparse.ArgumentParser(description='Re-evaluate results')
  parser.add_argument('output_dir', nargs=1, help='results directory',
                      type=str)
  parser.add_argument('--imdb', dest='imdb_name',
                      help='dataset to re-evaluate',
                      default='voc_2007_test', type=str)
  parser.add_argument('--matlab', dest='matlab_eval',
                      help='use matlab for evaluation',
                      action='store_true')
  parser.add_argument('--comp', dest='comp_mode', help='competition mode',
                      action='store_true')
  parser.add_argument('--nms', dest='apply_nms', help='apply nms',
                      action='store_true')

  if len(sys.argv) == 1:
    parser.print_help()
    sys.exit(1)

  args = parser.parse_args()
  return args 

def find_youtube_dl():
  if not args.skip_videos:
    if args.PATH_TO_YOUTUBE_DL:
      if not os.path.isfile(args.PATH_TO_YOUTUBE_DL):
        print("Could not find youtube-dl executable.")
        print("Make sure you're pointing at the right file.")
        print("A typical path would be: /usr/local/bin/youtube-dl")
        sys.exit(-1)

      return True, args.PATH_TO_YOUTUBE_DL
    else:
      if os.path.isfile('/usr/local/bin/youtube-dl'):
        if args.verbose:
          print("(Found youtube-dl automatically.)")
          print("")
        return True, '/usr/local/bin/youtube-dl'
  return False, '' 

def __init__(self, bus):
        self.bus = bus
        # Set default handlers
        self.handlers = {'SIGTERM': self.bus.exit,
                         'SIGHUP': self.handle_SIGHUP,
                         'SIGUSR1': self.bus.graceful,
                         }

        if sys.platform[:4] == 'java':
            del self.handlers['SIGUSR1']
            self.handlers['SIGUSR2'] = self.bus.graceful
            self.bus.log('SIGUSR1 cannot be set on the JVM platform. '
                         'Using SIGUSR2 instead.')
            self.handlers['SIGINT'] = self._jython_SIGINT_handler

        self._previous_handlers = {}
        # used to determine is the process is a daemon in `self._is_daemonized`
        self._original_pid = os.getpid() 

def save(filename):
    try:
        os.mkdir('saves/')
    except OSError:
        pass
    try:
        data = unicornhathd.get_pixels()
        data = repr(data)
        data = data.replace('array', 'list')
        print(filename, data)
        file = open('saves/' + filename + '.py', 'w')
        file.write("""#!/usr/bin/env python
import unicornhathd
import signal

unicornhathd.rotation(0)

pixels = {}

for x in range(unicornhathd.WIDTH):
    for y in range(unicornhathd.HEIGHT):
        r, g, b = pixels[x][y]
        unicornhathd.set_pixel(x, y, r, g, b)

unicornhathd.show()

print("\\nShowing: {}\\nPress Ctrl+C to exit!")

signal.pause()
""".format(data, filename))
        file.close()
        os.chmod('saves/' + filename + '.py', 0o777 | stat.S_IEXEC)

        return("ok" + str(unicornhathd.get_pixels()))
    except AttributeError:
        print("Unable to save, please update")
        print("unicornhathdhathd library!")
        return("fail") 

def main():
    """
    Main application loop.
    """

    env = os.environ

    try:
        host = env['SYSLOG_SERVER']
        port = int(env['SYSLOG_PORT'])
        socktype = socket.SOCK_DGRAM if env['SYSLOG_PROTO'] == 'udp' \
            else socket.SOCK_STREAM
    except KeyError:
        sys.exit("SYSLOG_SERVER, SYSLOG_PORT and SYSLOG_PROTO are required.")

    handler = SysLogHandler(
        address=(host, port),
        socktype=socktype,
    )
    handler.setFormatter(PalletFormatter())

    for event_headers, event_data in supervisor_events(sys.stdin, sys.stdout):
        event = logging.LogRecord(
            name=event_headers['processname'],
            level=logging.INFO,
            pathname=None,
            lineno=0,
            msg=event_data,
            args=(),
            exc_info=None,
        )
        event.process = int(event_headers['pid'])
        handler.handle(event) 

def loadDemo(which="example1", autoDownload=False):
    if not checkForDemo(which, autoDownload):
        sys.exit(1)

    demodir = "svviz-examples/{}".format(which)
    info = open("{}/info.txt".format(demodir))
    cmd = None
    for line in info:
        if line.startswith("#"):
            continue
        cmd = line.strip().split()
        cmd = [c.format(data=demodir) for c in cmd]
        break

    return cmd