示例#1
0
def create_main_parser():
    parser_kw = {
        "usage": "\n%prog <command> [options]",
        "add_help_option": False,
        "formatter": UpdatingDefaultsHelpFormatter(),
        "name": "global",
        "prog": get_prog(),
    }

    parser = ConfigOptionParser(**parser_kw)
    parser.disable_interspersed_args()

    pip_pkg_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
    parser.version = "pip %s from %s (python %s)" % (
        __version__,
        pip_pkg_dir,
        sys.version[:3],
    )

    # add the general options
    gen_opts = cmdoptions.make_option_group(cmdoptions.general_group, parser)
    parser.add_option_group(gen_opts)

    parser.main = True  # so the help formatter knows

    # create command listing for description
    command_summaries = get_summaries()
    description = [""] + ["%-27s %s" % (i, j) for i, j in command_summaries]
    parser.description = "\n".join(description)

    return parser
示例#2
0
def create_main_parser():
    parser_kw = {
        'usage': '\n%prog <command> [options]',
        'add_help_option': False,
        'formatter': UpdatingDefaultsHelpFormatter(),
        'name': 'global',
        'prog': get_prog(),
    }

    parser = ConfigOptionParser(**parser_kw)
    parser.disable_interspersed_args()

    pip_pkg_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
    parser.version = 'pip %s from %s (python %s)' % (
        __version__,
        pip_pkg_dir,
        sys.version[:3],
    )

    # add the general options
    gen_opts = cmdoptions.make_option_group(cmdoptions.general_group, parser)
    parser.add_option_group(gen_opts)

    parser.main = True  # so the help formatter knows

    # create command listing for description
    command_summaries = get_summaries()
    description = [''] + ['%-27s %s' % (i, j) for i, j in command_summaries]
    parser.description = '\n'.join(description)

    return parser
示例#3
0
def create_main_parser():
    parser_kw = {
        'usage': '\n%prog <command> [options]',
        'add_help_option': False,
        'formatter': UpdatingDefaultsHelpFormatter(),
        'name': 'global',
        'prog': get_prog(),
    }

    parser = ConfigOptionParser(**parser_kw)
    parser.disable_interspersed_args()

    pip_pkg_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
    parser.version = 'pip %s from %s (python %s)' % (
        __version__, pip_pkg_dir, sys.version[:3],
    )

    # add the general options
    gen_opts = cmdoptions.make_option_group(cmdoptions.general_group, parser)
    parser.add_option_group(gen_opts)

    parser.main = True  # so the help formatter knows

    # create command listing for description
    command_summaries = get_summaries()
    description = [''] + ['%-27s %s' % (i, j) for i, j in command_summaries]
    parser.description = '\n'.join(description)

    return parser
示例#4
0
    def __init__(self, isolated=False):
        parser_kw = {
            "usage": self.usage,
            "prog": "%s %s" % (get_prog(), self.name),
            "formatter": UpdatingDefaultsHelpFormatter(),
            "add_help_option": False,
            "name": self.name,
            "description": self.__doc__,
            "isolated": isolated,
        }

        self.parser = ConfigOptionParser(**parser_kw)

        # Commands should add options to this option group
        optgroup_name = "%s Options" % self.name.capitalize()
        self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name)

        # Add the general options
        gen_opts = cmdoptions.make_option_group(cmdoptions.general_group,
                                                self.parser)
        self.parser.add_option_group(gen_opts)
示例#5
0
    def __init__(self, isolated=False):
        parser_kw = {
            'usage': self.usage,
            'prog': '%s %s' % (get_prog(), self.name),
            'formatter': UpdatingDefaultsHelpFormatter(),
            'add_help_option': False,
            'name': self.name,
            'description': self.__doc__,
            'isolated': isolated,
        }

        self.parser = ConfigOptionParser(**parser_kw)

        # Commands should add options to this option group
        optgroup_name = '%s Options' % self.name.capitalize()
        self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name)

        # Add the general options
        gen_opts = cmdoptions.make_option_group(
            cmdoptions.general_group,
            self.parser,
        )
        self.parser.add_option_group(gen_opts)
示例#6
0
文件: basecommand.py 项目: aodag/pip
    def __init__(self, isolated=False):
        parser_kw = {
            'usage': self.usage,
            'prog': '%s %s' % (get_prog(), self.name),
            'formatter': UpdatingDefaultsHelpFormatter(),
            'add_help_option': False,
            'name': self.name,
            'description': self.__doc__,
            'isolated': isolated,
        }

        self.parser = ConfigOptionParser(**parser_kw)

        # Commands should add options to this option group
        optgroup_name = '%s Options' % self.name.capitalize()
        self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name)

        # Add the general options
        gen_opts = cmdoptions.make_option_group(
            cmdoptions.general_group,
            self.parser,
        )
        self.parser.add_option_group(gen_opts)
示例#7
0
class Command(object):
    name = None  # type: Optional[str]
    usage = None  # type: Optional[str]
    hidden = False  # type: bool
    ignore_require_venv = False  # type: bool
    log_streams = ("ext://sys.stdout", "ext://sys.stderr")

    def __init__(self, isolated=False):
        parser_kw = {
            'usage': self.usage,
            'prog': '%s %s' % (get_prog(), self.name),
            'formatter': UpdatingDefaultsHelpFormatter(),
            'add_help_option': False,
            'name': self.name,
            'description': self.__doc__,
            'isolated': isolated,
        }

        self.parser = ConfigOptionParser(**parser_kw)

        # Commands should add options to this option group
        optgroup_name = '%s Options' % self.name.capitalize()
        self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name)

        # Add the general options
        gen_opts = cmdoptions.make_option_group(
            cmdoptions.general_group,
            self.parser,
        )
        self.parser.add_option_group(gen_opts)

    def _build_session(self, options, retries=None, timeout=None):
        session = PipSession(
            cache=(normalize_path(os.path.join(options.cache_dir, "http"))
                   if options.cache_dir else None),
            retries=retries if retries is not None else options.retries,
            insecure_hosts=options.trusted_hosts,
        )

        # Handle custom ca-bundles from the user
        if options.cert:
            session.verify = options.cert

        # Handle SSL client certificate
        if options.client_cert:
            session.cert = options.client_cert

        # Handle timeouts
        if options.timeout or timeout:
            session.timeout = (timeout
                               if timeout is not None else options.timeout)

        # Handle configured proxies
        if options.proxy:
            session.proxies = {
                "http": options.proxy,
                "https": options.proxy,
            }

        # Determine if we can prompt the user for authentication or not
        session.auth.prompting = not options.no_input

        return session

    def parse_args(self, args):
        # factored out for testability
        return self.parser.parse_args(args)

    def main(self, args):
        options, args = self.parse_args(args)

        verbosity = options.verbose - options.quiet
        if verbosity >= 1:
            level = "DEBUG"
        elif verbosity == -1:
            level = "WARNING"
        elif verbosity == -2:
            level = "ERROR"
        elif verbosity <= -3:
            level = "CRITICAL"
        else:
            level = "INFO"

        # The root logger should match the "console" level *unless* we
        # specified "--log" to send debug logs to a file.
        root_level = level
        if options.log:
            root_level = "DEBUG"

        logging.config.dictConfig({
            "version":
            1,
            "disable_existing_loggers":
            False,
            "filters": {
                "exclude_warnings": {
                    "()": "pip._internal.utils.logging.MaxLevelFilter",
                    "level": logging.WARNING,
                },
            },
            "formatters": {
                "indent": {
                    "()": IndentingFormatter,
                    "format": "%(message)s",
                },
            },
            "handlers": {
                "console": {
                    "level": level,
                    "class":
                    "pip._internal.utils.logging.ColorizedStreamHandler",
                    "stream": self.log_streams[0],
                    "filters": ["exclude_warnings"],
                    "formatter": "indent",
                },
                "console_errors": {
                    "level": "WARNING",
                    "class":
                    "pip._internal.utils.logging.ColorizedStreamHandler",
                    "stream": self.log_streams[1],
                    "formatter": "indent",
                },
                "user_log": {
                    "level":
                    "DEBUG",
                    "class": ("pip._internal.utils.logging"
                              ".BetterRotatingFileHandler"),
                    "filename":
                    options.log or "/dev/null",
                    "delay":
                    True,
                    "formatter":
                    "indent",
                },
            },
            "root": {
                "level":
                root_level,
                "handlers":
                list(
                    filter(None, [
                        "console",
                        "console_errors",
                        "user_log" if options.log else None,
                    ])),
            },
            # Disable any logging besides WARNING unless we have DEBUG level
            # logging enabled. These use both pip._vendor and the bare names
            # for the case where someone unbundles our libraries.
            "loggers":
            dict((name, {
                "level": ("WARNING" if level in ["INFO", "ERROR"] else "DEBUG")
            }) for name in ["pip._vendor", "distlib", "requests", "urllib3"]),
        })

        if sys.version_info[:2] == (3, 3):
            warnings.warn(
                "Python 3.3 supported has been deprecated and support for it "
                "will be dropped in the future. Please upgrade your Python.",
                deprecation.RemovedInPip11Warning,
            )

        # TODO: try to get these passing down from the command?
        #      without resorting to os.environ to hold these.

        if options.no_input:
            os.environ['PIP_NO_INPUT'] = '1'

        if options.exists_action:
            os.environ['PIP_EXISTS_ACTION'] = ' '.join(options.exists_action)

        if options.require_venv and not self.ignore_require_venv:
            # If a venv is required check if it can really be found
            if not running_under_virtualenv():
                logger.critical(
                    'Could not find an activated virtualenv (required).')
                sys.exit(VIRTUALENV_NOT_FOUND)

        original_root_handlers = set(logging.root.handlers)

        try:
            status = self.run(options, args)
            # FIXME: all commands should return an exit status
            # and when it is done, isinstance is not needed anymore
            if isinstance(status, int):
                return status
        except PreviousBuildDirError as exc:
            logger.critical(str(exc))
            logger.debug('Exception information:', exc_info=True)

            return PREVIOUS_BUILD_DIR_ERROR
        except (InstallationError, UninstallationError, BadCommand) as exc:
            logger.critical(str(exc))
            logger.debug('Exception information:', exc_info=True)

            return ERROR
        except CommandError as exc:
            logger.critical('ERROR: %s', exc)
            logger.debug('Exception information:', exc_info=True)

            return ERROR
        except KeyboardInterrupt:
            logger.critical('Operation cancelled by user')
            logger.debug('Exception information:', exc_info=True)

            return ERROR
        except:
            logger.critical('Exception:', exc_info=True)

            return UNKNOWN_ERROR
        finally:
            # Check if we're using the latest version of pip available
            if (not options.disable_pip_version_check
                    and not getattr(options, "no_index", False)):
                with self._build_session(options,
                                         retries=0,
                                         timeout=min(
                                             5, options.timeout)) as session:
                    pip_version_check(session, options)
            # Avoid leaking loggers
            for handler in set(logging.root.handlers) - original_root_handlers:
                # this method benefit from the Logger class internal lock
                logging.root.removeHandler(handler)

        return SUCCESS
示例#8
0
文件: basecommand.py 项目: aodag/pip
class Command(object):
    name = None  # type: Optional[str]
    usage = None  # type: Optional[str]
    hidden = False  # type: bool
    ignore_require_venv = False  # type: bool
    log_streams = ("ext://sys.stdout", "ext://sys.stderr")

    def __init__(self, isolated=False):
        parser_kw = {
            'usage': self.usage,
            'prog': '%s %s' % (get_prog(), self.name),
            'formatter': UpdatingDefaultsHelpFormatter(),
            'add_help_option': False,
            'name': self.name,
            'description': self.__doc__,
            'isolated': isolated,
        }

        self.parser = ConfigOptionParser(**parser_kw)

        # Commands should add options to this option group
        optgroup_name = '%s Options' % self.name.capitalize()
        self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name)

        # Add the general options
        gen_opts = cmdoptions.make_option_group(
            cmdoptions.general_group,
            self.parser,
        )
        self.parser.add_option_group(gen_opts)

    def _build_session(self, options, retries=None, timeout=None):
        session = PipSession(
            cache=(
                normalize_path(os.path.join(options.cache_dir, "http"))
                if options.cache_dir else None
            ),
            retries=retries if retries is not None else options.retries,
            insecure_hosts=options.trusted_hosts,
        )

        # Handle custom ca-bundles from the user
        if options.cert:
            session.verify = options.cert

        # Handle SSL client certificate
        if options.client_cert:
            session.cert = options.client_cert

        # Handle timeouts
        if options.timeout or timeout:
            session.timeout = (
                timeout if timeout is not None else options.timeout
            )

        # Handle configured proxies
        if options.proxy:
            session.proxies = {
                "http": options.proxy,
                "https": options.proxy,
            }

        # Determine if we can prompt the user for authentication or not
        session.auth.prompting = not options.no_input

        return session

    def parse_args(self, args):
        # factored out for testability
        return self.parser.parse_args(args)

    def main(self, args):
        options, args = self.parse_args(args)

        verbosity = options.verbose - options.quiet
        if verbosity >= 1:
            level = "DEBUG"
        elif verbosity == -1:
            level = "WARNING"
        elif verbosity == -2:
            level = "ERROR"
        elif verbosity <= -3:
            level = "CRITICAL"
        else:
            level = "INFO"

        # The root logger should match the "console" level *unless* we
        # specified "--log" to send debug logs to a file.
        root_level = level
        if options.log:
            root_level = "DEBUG"

        logging.config.dictConfig({
            "version": 1,
            "disable_existing_loggers": False,
            "filters": {
                "exclude_warnings": {
                    "()": "pip._internal.utils.logging.MaxLevelFilter",
                    "level": logging.WARNING,
                },
            },
            "formatters": {
                "indent": {
                    "()": IndentingFormatter,
                    "format": "%(message)s",
                },
            },
            "handlers": {
                "console": {
                    "level": level,
                    "class":
                        "pip._internal.utils.logging.ColorizedStreamHandler",
                    "stream": self.log_streams[0],
                    "filters": ["exclude_warnings"],
                    "formatter": "indent",
                },
                "console_errors": {
                    "level": "WARNING",
                    "class":
                        "pip._internal.utils.logging.ColorizedStreamHandler",
                    "stream": self.log_streams[1],
                    "formatter": "indent",
                },
                "user_log": {
                    "level": "DEBUG",
                    "class":
                        ("pip._internal.utils.logging"
                         ".BetterRotatingFileHandler"),
                    "filename": options.log or "/dev/null",
                    "delay": True,
                    "formatter": "indent",
                },
            },
            "root": {
                "level": root_level,
                "handlers": list(filter(None, [
                    "console",
                    "console_errors",
                    "user_log" if options.log else None,
                ])),
            },
            # Disable any logging besides WARNING unless we have DEBUG level
            # logging enabled. These use both pip._vendor and the bare names
            # for the case where someone unbundles our libraries.
            "loggers": dict(
                (name, {
                    "level": (
                        "WARNING" if level in ["INFO", "ERROR"] else "DEBUG"
                    )
                }) for name in [
                    "pip._vendor", "distlib", "requests", "urllib3"
                ]
            ),
        })

        if sys.version_info[:2] == (3, 3):
            warnings.warn(
                "Python 3.3 supported has been deprecated and support for it "
                "will be dropped in the future. Please upgrade your Python.",
                deprecation.RemovedInPip11Warning,
            )

        # TODO: try to get these passing down from the command?
        #      without resorting to os.environ to hold these.

        if options.no_input:
            os.environ['PIP_NO_INPUT'] = '1'

        if options.exists_action:
            os.environ['PIP_EXISTS_ACTION'] = ' '.join(options.exists_action)

        if options.require_venv and not self.ignore_require_venv:
            # If a venv is required check if it can really be found
            if not running_under_virtualenv():
                logger.critical(
                    'Could not find an activated virtualenv (required).'
                )
                sys.exit(VIRTUALENV_NOT_FOUND)

        original_root_handlers = set(logging.root.handlers)

        try:
            status = self.run(options, args)
            # FIXME: all commands should return an exit status
            # and when it is done, isinstance is not needed anymore
            if isinstance(status, int):
                return status
        except PreviousBuildDirError as exc:
            logger.critical(str(exc))
            logger.debug('Exception information:', exc_info=True)

            return PREVIOUS_BUILD_DIR_ERROR
        except (InstallationError, UninstallationError, BadCommand) as exc:
            logger.critical(str(exc))
            logger.debug('Exception information:', exc_info=True)

            return ERROR
        except CommandError as exc:
            logger.critical('ERROR: %s', exc)
            logger.debug('Exception information:', exc_info=True)

            return ERROR
        except KeyboardInterrupt:
            logger.critical('Operation cancelled by user')
            logger.debug('Exception information:', exc_info=True)

            return ERROR
        except:
            logger.critical('Exception:', exc_info=True)

            return UNKNOWN_ERROR
        finally:
            # Check if we're using the latest version of pip available
            if (not options.disable_pip_version_check and not
                    getattr(options, "no_index", False)):
                with self._build_session(
                        options,
                        retries=0,
                        timeout=min(5, options.timeout)) as session:
                    pip_version_check(session, options)
            # Avoid leaking loggers
            for handler in set(logging.root.handlers) - original_root_handlers:
                # this method benefit from the Logger class internal lock
                logging.root.removeHandler(handler)

        return SUCCESS
示例#9
0
class Command(object):
    name = None  # type: Optional[str]
    usage = None  # type: Optional[str]
    hidden = False  # type: bool
    ignore_require_venv = False  # type: bool

    def __init__(self, isolated=False):
        parser_kw = {
            'usage': self.usage,
            'prog': '%s %s' % (get_prog(), self.name),
            'formatter': UpdatingDefaultsHelpFormatter(),
            'add_help_option': False,
            'name': self.name,
            'description': self.__doc__,
            'isolated': isolated,
        }

        self.parser = ConfigOptionParser(**parser_kw)

        # Commands should add options to this option group
        optgroup_name = '%s Options' % self.name.capitalize()
        self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name)

        # Add the general options
        gen_opts = cmdoptions.make_option_group(
            cmdoptions.general_group,
            self.parser,
        )
        self.parser.add_option_group(gen_opts)

    def _build_session(self, options, retries=None, timeout=None):
        session = PipSession(
            cache=(normalize_path(os.path.join(options.cache_dir, "http"))
                   if options.cache_dir else None),
            retries=retries if retries is not None else options.retries,
            insecure_hosts=options.trusted_hosts,
        )

        # Handle custom ca-bundles from the user
        if options.cert:
            session.verify = options.cert

        # Handle SSL client certificate
        if options.client_cert:
            session.cert = options.client_cert

        # Handle timeouts
        if options.timeout or timeout:
            session.timeout = (timeout
                               if timeout is not None else options.timeout)

        # Handle configured proxies
        if options.proxy:
            session.proxies = {
                "http": options.proxy,
                "https": options.proxy,
            }

        # Determine if we can prompt the user for authentication or not
        session.auth.prompting = not options.no_input

        return session

    def parse_args(self, args):
        # factored out for testability
        return self.parser.parse_args(args)

    def main(self, args):
        options, args = self.parse_args(args)

        # Set verbosity so that it can be used elsewhere.
        self.verbosity = options.verbose - options.quiet

        setup_logging(
            verbosity=self.verbosity,
            no_color=options.no_color,
            user_log_file=options.log,
        )

        # TODO: Try to get these passing down from the command?
        #       without resorting to os.environ to hold these.
        #       This also affects isolated builds and it should.

        if options.no_input:
            os.environ['PIP_NO_INPUT'] = '1'

        if options.exists_action:
            os.environ['PIP_EXISTS_ACTION'] = ' '.join(options.exists_action)

        if options.require_venv and not self.ignore_require_venv:
            # If a venv is required check if it can really be found
            if not running_under_virtualenv():
                logger.critical(
                    'Could not find an activated virtualenv (required).')
                sys.exit(VIRTUALENV_NOT_FOUND)

        try:
            status = self.run(options, args)
            # FIXME: all commands should return an exit status
            # and when it is done, isinstance is not needed anymore
            if isinstance(status, int):
                return status
        except PreviousBuildDirError as exc:
            logger.critical(str(exc))
            logger.debug('Exception information:', exc_info=True)

            return PREVIOUS_BUILD_DIR_ERROR
        except (InstallationError, UninstallationError, BadCommand) as exc:
            logger.critical(str(exc))
            logger.debug('Exception information:', exc_info=True)

            return ERROR
        except CommandError as exc:
            logger.critical('ERROR: %s', exc)
            logger.debug('Exception information:', exc_info=True)

            return ERROR
        except KeyboardInterrupt:
            logger.critical('Operation cancelled by user')
            logger.debug('Exception information:', exc_info=True)

            return ERROR
        except BaseException:
            logger.critical('Exception:', exc_info=True)

            return UNKNOWN_ERROR
        finally:
            # Check if we're using the latest version of pip available
            skip_version_check = (options.disable_pip_version_check
                                  or getattr(options, "no_index", False))
            if not skip_version_check:
                session = self._build_session(options,
                                              retries=0,
                                              timeout=min(5, options.timeout))
                with session:
                    pip_version_check(session, options)

            # Shutdown the logging module
            logging.shutdown()

        return SUCCESS
示例#10
0
class Command(object):
    name = None  # type: Optional[str]
    usage = None  # type: Optional[str]
    hidden = False  # type: bool
    ignore_require_venv = False  # type: bool

    def __init__(self, isolated=False):
        parser_kw = {
            'usage': self.usage,
            'prog': '%s %s' % (get_prog(), self.name),
            'formatter': UpdatingDefaultsHelpFormatter(),
            'add_help_option': False,
            'name': self.name,
            'description': self.__doc__,
            'isolated': isolated,
        }

        self.parser = ConfigOptionParser(**parser_kw)

        # Commands should add options to this option group
        optgroup_name = '%s Options' % self.name.capitalize()
        self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name)

        # Add the general options
        gen_opts = cmdoptions.make_option_group(
            cmdoptions.general_group,
            self.parser,
        )
        self.parser.add_option_group(gen_opts)

    def _build_session(self, options, retries=None, timeout=None):
        session = PipSession(
            cache=(
                normalize_path(os.path.join(options.cache_dir, "http"))
                if options.cache_dir else None
            ),
            retries=retries if retries is not None else options.retries,
            insecure_hosts=options.trusted_hosts,
        )

        # Handle custom ca-bundles from the user
        if options.cert:
            session.verify = options.cert

        # Handle SSL client certificate
        if options.client_cert:
            session.cert = options.client_cert

        # Handle timeouts
        if options.timeout or timeout:
            session.timeout = (
                timeout if timeout is not None else options.timeout
            )

        # Handle configured proxies
        if options.proxy:
            session.proxies = {
                "http": options.proxy,
                "https": options.proxy,
            }

        # Determine if we can prompt the user for authentication or not
        session.auth.prompting = not options.no_input

        return session

    def parse_args(self, args):
        # factored out for testability
        return self.parser.parse_args(args)

    def main(self, args):
        options, args = self.parse_args(args)

        # Set verbosity so that it can be used elsewhere.
        self.verbosity = options.verbose - options.quiet

        setup_logging(
            verbosity=self.verbosity,
            no_color=options.no_color,
            user_log_file=options.log,
        )

        # TODO: Try to get these passing down from the command?
        #       without resorting to os.environ to hold these.
        #       This also affects isolated builds and it should.

        if options.no_input:
            os.environ['PIP_NO_INPUT'] = '1'

        if options.exists_action:
            os.environ['PIP_EXISTS_ACTION'] = ' '.join(options.exists_action)

        if options.require_venv and not self.ignore_require_venv:
            # If a venv is required check if it can really be found
            if not running_under_virtualenv():
                logger.critical(
                    'Could not find an activated virtualenv (required).'
                )
                sys.exit(VIRTUALENV_NOT_FOUND)

        try:
            status = self.run(options, args)
            # FIXME: all commands should return an exit status
            # and when it is done, isinstance is not needed anymore
            if isinstance(status, int):
                return status
        except PreviousBuildDirError as exc:
            logger.critical(str(exc))
            logger.debug('Exception information:', exc_info=True)

            return PREVIOUS_BUILD_DIR_ERROR
        except (InstallationError, UninstallationError, BadCommand) as exc:
            logger.critical(str(exc))
            logger.debug('Exception information:', exc_info=True)

            return ERROR
        except CommandError as exc:
            logger.critical('ERROR: %s', exc)
            logger.debug('Exception information:', exc_info=True)

            return ERROR
        except KeyboardInterrupt:
            logger.critical('Operation cancelled by user')
            logger.debug('Exception information:', exc_info=True)

            return ERROR
        except BaseException:
            logger.critical('Exception:', exc_info=True)

            return UNKNOWN_ERROR
        finally:
            # Check if we're using the latest version of pip available
            skip_version_check = (
                options.disable_pip_version_check or
                getattr(options, "no_index", False)
            )
            if not skip_version_check:
                session = self._build_session(
                    options,
                    retries=0,
                    timeout=min(5, options.timeout)
                )
                with session:
                    pip_version_check(session, options)

            # Shutdown the logging module
            logging.shutdown()

        return SUCCESS