Drop python2 support
This mostly consists in removing the dependency on "six" and updating
the code to use only Python3 idioms.
Notice that we previously used TemporaryDirectory from
cubicweb.devtools.testlib for compatibility with Python2. We now
directly import it from tempfile.
# copyright 2003-2016 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
"""the cubicweb-ctl tool, based on logilab.common.clcommands to
provide a pluggable commands system.
"""
# *ctl module should limit the number of import to be imported as quickly as
# possible (for cubicweb-ctl reactivity, necessary for instance for usable bash
# completion). So import locally in command helpers.
import sys
from warnings import filterwarnings
from os import listdir, system
from os.path import exists, join, isdir
try:
from os import kill, getpgid
except ImportError:
def kill(*args):
"""win32 kill implementation"""
def getpgid():
"""win32 getpgid implementation"""
from logilab.common.clcommands import CommandLine
from logilab.common.shellutils import ASK
from logilab.common.configuration import merge_options
from logilab.common.decorators import clear_cache
from cubicweb import ConfigurationError, ExecutionError, BadCommandUsage
from cubicweb.cwconfig import CubicWebConfiguration as cwcfg, CONFIGURATIONS
from cubicweb.toolsutils import Command, rm, create_dir, underline_title
from cubicweb.__pkginfo__ import version as cw_version
# don't check duplicated commands, it occurs when reloading site_cubicweb
CWCTL = CommandLine('cubicweb-ctl', 'The CubicWeb swiss-knife.',
version=cw_version, check_duplicated_command=False)
def wait_process_end(pid, maxtry=10, waittime=1):
"""wait for a process to actually die"""
import signal
from time import sleep
nbtry = 0
while nbtry < maxtry:
try:
kill(pid, signal.SIGUSR1)
except (OSError, AttributeError): # XXX win32
break
nbtry += 1
sleep(waittime)
else:
raise ExecutionError('can\'t kill process %s' % pid)
def list_instances(regdir):
if isdir(regdir):
return sorted(idir for idir in listdir(regdir) if isdir(join(regdir, idir)))
else:
return []
def detect_available_modes(templdir):
modes = []
for fname in ('schema', 'schema.py'):
if exists(join(templdir, fname)):
modes.append('repository')
break
for fname in ('data', 'views', 'views.py'):
if exists(join(templdir, fname)):
modes.append('web ui')
break
return modes
def available_cube_names(cwcfg):
"""Return a list of available cube names, with 'cubicweb_' prefix dropped.
"""
def drop_prefix(cube):
prefix = 'cubicweb_'
if cube.startswith(prefix):
cube = cube[len(prefix):]
return cube
return [drop_prefix(cube) for cube in cwcfg.available_cubes()]
class InstanceCommand(Command):
"""base class for command taking 0 to n instance id as arguments
(0 meaning all registered instances)
"""
arguments = '[<instance>...]'
options = (
("force",
{'short': 'f', 'action': 'store_true',
'default': False,
'help': 'force command without asking confirmation',
}
),
)
actionverb = None
def run(self, args):
"""run the <command>_method on each argument (a list of instance
identifiers)
"""
if not args:
args = list_instances(cwcfg.instances_dir())
try:
askconfirm = not self.config.force
except AttributeError:
# no force option
askconfirm = False
else:
askconfirm = False
self.run_args(args, askconfirm)
def run_args(self, args, askconfirm):
status = 0
for appid in args:
if askconfirm:
print('*' * 72)
if not ASK.confirm('%s instance %r ?' % (self.name, appid)):
continue
try:
status = max(status, self.run_arg(appid))
except (KeyboardInterrupt, SystemExit):
sys.stderr.write('%s aborted\n' % self.name)
return 2 # specific error code
sys.exit(status)
def run_arg(self, appid):
cmdmeth = getattr(self, '%s_instance' % self.name)
try:
status = cmdmeth(appid) or 0
except (ExecutionError, ConfigurationError) as ex:
sys.stderr.write('instance %s not %s: %s\n' % (
appid, self.actionverb, ex))
status = 4
except Exception as ex:
import traceback
traceback.print_exc()
sys.stderr.write('instance %s not %s: %s\n' % (
appid, self.actionverb, ex))
status = 8
return status
class InstanceCommandFork(InstanceCommand):
"""Same as `InstanceCommand`, but command is forked in a new environment
for each argument
"""
def run_args(self, args, askconfirm):
if len(args) > 1:
forkcmd = ' '.join(w for w in sys.argv if w not in args)
else:
forkcmd = None
for appid in args:
if askconfirm:
print('*' * 72)
if not ASK.confirm('%s instance %r ?' % (self.name, appid)):
continue
if forkcmd:
status = system('%s %s' % (forkcmd, appid))
if status:
print('%s exited with status %s' % (forkcmd, status))
else:
self.run_arg(appid)
# base commands ###############################################################
class ListCommand(Command):
"""List configurations, cubes and instances.
List available configurations, installed cubes, and registered instances.
If given, the optional argument allows to restrict listing only a category of items.
"""
name = 'list'
arguments = '[all|cubes|configurations|instances]'
options = (
('verbose',
{'short': 'v', 'action': 'store_true',
'help': "display more information."}),
)
def run(self, args):
"""run the command with its specific arguments"""
if not args:
mode = 'all'
elif len(args) == 1:
mode = args[0]
else:
raise BadCommandUsage('Too many arguments')
from cubicweb.migration import ConfigurationProblem
if mode == 'all':
print('CubicWeb %s (%s mode)' % (cwcfg.cubicweb_version(), cwcfg.mode))
print()
if mode in ('all', 'config', 'configurations'):
cwcfg.load_available_configs()
print('Available configurations:')
for config in CONFIGURATIONS:
print('*', config.name)
for line in config.__doc__.splitlines():
line = line.strip()
if not line:
continue
print(' ', line)
print()
if mode in ('all', 'cubes'):
cfgpb = ConfigurationProblem(cwcfg)
try:
cube_names = available_cube_names(cwcfg)
namesize = max(len(x) for x in cube_names)
except ConfigurationError as ex:
print('No cubes available:', ex)
except ValueError:
print('No cubes available')
else:
print('Available cubes:')
for cube in cube_names:
try:
tinfo = cwcfg.cube_pkginfo(cube)
tversion = tinfo.version
cfgpb.add_cube(cube, tversion)
except (ConfigurationError, AttributeError) as ex:
tinfo = None
tversion = '[missing cube information: %s]' % ex
print('* %s %s' % (cube.ljust(namesize), tversion))
if self.config.verbose:
if tinfo:
descr = getattr(tinfo, 'description', '')
if not descr:
descr = tinfo.__doc__
if descr:
print(' ' + ' \n'.join(descr.splitlines()))
modes = detect_available_modes(cwcfg.cube_dir(cube))
print(' available modes: %s' % ', '.join(modes))
print()
if mode in ('all', 'instances'):
try:
regdir = cwcfg.instances_dir()
except ConfigurationError as ex:
print('No instance available:', ex)
print()
return
instances = list_instances(regdir)
if instances:
print('Available instances (%s):' % regdir)
for appid in instances:
modes = cwcfg.possible_configurations(appid)
if not modes:
print('* %s (BROKEN instance, no configuration found)' % appid)
continue
print('* %s (%s)' % (appid, ', '.join(modes)))
try:
config = cwcfg.config_for(appid, modes[0])
except Exception as exc:
print(' (BROKEN instance, %s)' % exc)
continue
else:
print('No instance available in %s' % regdir)
print()
if mode == 'all':
# configuration management problem solving
cfgpb.solve()
if cfgpb.warnings:
print('Warnings:\n', '\n'.join('* ' + txt for txt in cfgpb.warnings))
if cfgpb.errors:
print('Errors:')
for op, cube, version, src in cfgpb.errors:
if op == 'add':
print('* cube', cube, end=' ')
if version:
print(' version', version, end=' ')
print('is not installed, but required by %s' % src)
else:
print(
'* cube %s version %s is installed, but version %s is required by %s'
% (cube, cfgpb.cubes[cube], version, src)
)
def check_options_consistency(config):
if config.automatic and config.config_level > 0:
raise BadCommandUsage('--automatic and --config-level should not be '
'used together')
class CreateInstanceCommand(Command):
"""Create an instance from a cube. This is a unified
command which can handle web / server / all-in-one installation
according to available parts of the software library and of the
desired cube.
<cube>
the name of cube to use (list available cube names using
the "list" command). You can use several cubes by separating
them using comma (e.g. 'jpl,email')
<instance>
an identifier for the instance to create
"""
name = 'create'
arguments = '<cube> <instance>'
min_args = max_args = 2
options = (
('automatic',
{'short': 'a', 'action': 'store_true',
'default': False,
'help': 'automatic mode: never ask and use default answer to every '
'question. this may require that your login match a database super '
'user (allowed to create database & all).',
}),
('config-level',
{'short': 'l', 'type': 'int', 'metavar': '<level>',
'default': 0,
'help': 'configuration level (0..2): 0 will ask for essential '
'configuration parameters only while 2 will ask for all parameters',
}),
('config',
{'short': 'c', 'type': 'choice', 'metavar': '<install type>',
'choices': ('all-in-one', 'repository', 'pyramid'),
'default': 'all-in-one',
'help': 'installation type, telling which part of an instance '
'should be installed. You can list available configurations using the'
' "list" command. Default to "all-in-one", e.g. an installation '
'embedding both the RQL repository and the web server.',
}),
('no-db-create',
{'short': 'S',
'action': 'store_true',
'default': False,
'help': 'stop after creation and do not continue with db-create',
}),
)
def run(self, args):
"""run the command with its specific arguments"""
from logilab.common.textutils import splitstrip
check_options_consistency(self.config)
configname = self.config.config
cubes, appid = args
cubes = splitstrip(cubes)
# get the configuration and helper
config = cwcfg.config_for(appid, configname, creating=True)
cubes = config.expand_cubes(cubes)
config.init_cubes(cubes)
helper = self.config_helper(config)
# check the cube exists
try:
templdirs = [cwcfg.cube_dir(cube)
for cube in cubes]
except ConfigurationError as ex:
print(ex)
print('\navailable cubes:', end=' ')
print(', '.join(available_cube_names(cwcfg)))
return
# create the registry directory for this instance
print('\n' + underline_title('Creating the instance %s' % appid))
create_dir(config.apphome)
# cubicweb-ctl configuration
if not self.config.automatic:
print('\n' + underline_title('Configuring the instance (%s.conf)'
% configname))
config.input_config('main', self.config.config_level)
# configuration'specific stuff
print()
helper.bootstrap(cubes, self.config.automatic, self.config.config_level)
# input for cubes specific options
if not self.config.automatic:
sections = set(sect.lower() for sect, opt, odict in config.all_options()
if 'type' in odict
and odict.get('level', 0) <= self.config.config_level)
for section in sections:
if section not in ('main', 'email', 'web'):
print('\n' + underline_title('%s options' % section))
config.input_config(section, self.config.config_level)
# write down configuration
config.save()
print('-> generated config %s' % config.main_config_file())
# handle i18n files structure
# in the first cube given
from cubicweb import i18n
langs = [lang for lang, _ in i18n.available_catalogs(join(templdirs[0], 'i18n'))]
errors = config.i18ncompile(langs)
if errors:
print('\n'.join(errors))
if self.config.automatic \
or not ASK.confirm('error while compiling message catalogs, '
'continue anyway ?'):
print('creation not completed')
return
# create the additional data directory for this instance
if config.appdatahome != config.apphome: # true in dev mode
create_dir(config.appdatahome)
create_dir(join(config.appdatahome, 'backup'))
if config['uid']:
from logilab.common.shellutils import chown
# this directory should be owned by the uid of the server process
print('set %s as owner of the data directory' % config['uid'])
chown(config.appdatahome, config['uid'])
print('\n-> creation done for %s\n' % repr(config.apphome)[1:-1])
if not self.config.no_db_create:
helper.postcreate(self.config.automatic, self.config.config_level)
class DeleteInstanceCommand(Command):
"""Delete an instance. Will remove instance's files and
unregister it.
"""
name = 'delete'
arguments = '<instance>'
min_args = max_args = 1
options = ()
def run(self, args):
"""run the command with its specific arguments"""
appid = args[0]
configs = [cwcfg.config_for(appid, configname)
for configname in cwcfg.possible_configurations(appid)]
if not configs:
raise ExecutionError('unable to guess configuration for %s' % appid)
for config in configs:
helper = self.config_helper(config, required=False)
if helper:
helper.cleanup()
# remove home
rm(config.apphome)
# remove instance data directory
try:
rm(config.appdatahome)
except OSError as ex:
import errno
if ex.errno != errno.ENOENT:
raise
confignames = ', '.join([config.name for config in configs])
print('-> instance %s (%s) deleted.' % (appid, confignames))
# instance commands ########################################################
def init_cmdline_log_threshold(config, loglevel):
if loglevel is not None:
config.global_set_option('log-threshold', loglevel.upper())
config.init_log(config['log-threshold'], force=True)
class UpgradeInstanceCommand(InstanceCommandFork):
"""Upgrade an instance after cubicweb and/or component(s) upgrade.
For repository update, you will be prompted for a login / password to use
to connect to the system database. For some upgrades, the given user
should have create or alter table permissions.
<instance>...
identifiers of the instances to upgrade. If no instance is
given, upgrade them all.
"""
name = 'upgrade'
actionverb = 'upgraded'
options = InstanceCommand.options + (
('force-cube-version',
{'short': 't', 'type': 'named', 'metavar': 'cube1:X.Y.Z,cube2:X.Y.Z',
'default': None,
'help': 'force migration from the indicated version for the specified cube(s).'}),
('force-cubicweb-version',
{'short': 'e', 'type': 'string', 'metavar': 'X.Y.Z',
'default': None,
'help': 'force migration from the indicated cubicweb version.'}),
('fs-only',
{'short': 's', 'action': 'store_true',
'default': False,
'help': 'only upgrade files on the file system, not the database.'}),
('no-config-update',
{'short': 'C', 'action': 'store_true',
'default': False,
'help': 'do NOT update config file if set.'}),
('verbosity',
{'short': 'v', 'type': 'int', 'metavar': '<0..2>',
'default': 1,
'help': "0: no confirmation, 1: only main commands confirmed, 2 ask \
for everything."}),
('backup-db',
{'short': 'b', 'type': 'yn', 'metavar': '<y or n>',
'default': None,
'help': "Backup the instance database before upgrade.\n"
"If the option is ommitted, confirmation will be ask.",
}),
('ext-sources',
{'short': 'E', 'type': 'csv', 'metavar': '<sources>',
'default': None,
'help': "For multisources instances, specify to which sources the \
repository should connect to for upgrading. When unspecified or 'migration' is \
given, appropriate sources for migration will be automatically selected \
(recommended). If 'all' is given, will connect to all defined sources.",
}),
)
def upgrade_instance(self, appid):
print('\n' + underline_title('Upgrading the instance %s' % appid))
from logilab.common.changelog import Version
config = cwcfg.config_for(appid)
config.repairing = True # notice we're not starting the server
config.verbosity = self.config.verbosity
set_sources_mode = getattr(config, 'set_sources_mode', None)
if set_sources_mode is not None:
set_sources_mode(self.config.ext_sources or ('migration',))
# get instance and installed versions for the server and the componants
mih = config.migration_handler()
repo = mih.repo
vcconf = repo.get_versions()
helper = self.config_helper(config, required=False)
if self.config.force_cube_version:
for cube, version in self.config.force_cube_version.items():
vcconf[cube] = Version(version)
toupgrade = []
for cube in config.cubes():
installedversion = config.cube_version(cube)
try:
applversion = vcconf[cube]
except KeyError:
config.error('no version information for %s' % cube)
continue
if installedversion > applversion:
toupgrade.append((cube, applversion, installedversion))
cubicwebversion = config.cubicweb_version()
if self.config.force_cubicweb_version:
applcubicwebversion = Version(self.config.force_cubicweb_version)
vcconf['cubicweb'] = applcubicwebversion
else:
applcubicwebversion = vcconf.get('cubicweb')
if cubicwebversion > applcubicwebversion:
toupgrade.append(('cubicweb', applcubicwebversion, cubicwebversion))
# run cubicweb/componants migration scripts
if self.config.fs_only or toupgrade:
for cube, fromversion, toversion in toupgrade:
print('-> migration needed from %s to %s for %s' % (fromversion, toversion, cube))
with mih.cnx:
with mih.cnx.security_enabled(False, False):
mih.migrate(vcconf, reversed(toupgrade), self.config)
clear_cache(config, 'instance_md5_version')
else:
print('-> no data migration needed for instance %s.' % appid)
# rewrite main configuration file
if not self.config.no_config_update:
mih.rewrite_configuration()
mih.shutdown()
# handle i18n upgrade
if not self.i18nupgrade(config):
return
print()
if helper:
helper.postupgrade(repo)
print('-> instance migrated.')
print()
def i18nupgrade(self, config):
# handle i18n upgrade:
# * install new languages
# * recompile catalogs
# XXX search available language in the first cube given
from cubicweb import i18n
templdir = cwcfg.cube_dir(config.cubes()[0])
langs = [lang for lang, _ in i18n.available_catalogs(join(templdir, 'i18n'))]
errors = config.i18ncompile(langs)
if errors:
print('\n'.join(errors))
if not ASK.confirm('Error while compiling message catalogs, '
'continue anyway?'):
print('-> migration not completed.')
return False
return True
class ListVersionsInstanceCommand(InstanceCommand):
"""List versions used by an instance.
<instance>...
identifiers of the instances to list versions for.
"""
name = 'versions'
def versions_instance(self, appid):
config = cwcfg.config_for(appid)
# should not raise error if db versions don't match fs versions
config.repairing = True
# no need to load all appobjects and schema
config.quick_start = True
if hasattr(config, 'set_sources_mode'):
config.set_sources_mode(('migration',))
vcconf = config.repository().get_versions()
for key in sorted(vcconf):
print(key + ': %s.%s.%s' % vcconf[key])
class ShellCommand(Command):
"""Run an interactive migration shell on an instance. This is a python shell
with enhanced migration commands predefined in the namespace. An additional
argument may be given corresponding to a file containing commands to execute
in batch mode.
By default it will connect to a local instance using an in memory
connection, unless a URL to a running instance is specified.
Arguments after bare "--" string will not be processed by the shell command
You can use it to pass extra arguments to your script and expect for
them in '__args__' afterwards.
<instance>
the identifier of the instance to connect.
"""
name = 'shell'
arguments = '<instance> [batch command file(s)] [-- <script arguments>]'
min_args = 1
options = (
('system-only',
{'short': 'S', 'action': 'store_true',
'help': 'only connect to the system source when the instance is '
'using multiple sources. You can\'t use this option and the '
'--ext-sources option at the same time.',
'group': 'local'
}),
('ext-sources',
{'short': 'E', 'type': 'csv', 'metavar': '<sources>',
'help': "For multisources instances, specify to which sources the \
repository should connect to for upgrading. When unspecified or 'all' given, \
will connect to all defined sources. If 'migration' is given, appropriate \
sources for migration will be automatically selected.",
'group': 'local'
}),
('force',
{'short': 'f', 'action': 'store_true',
'help': 'don\'t check instance is up to date.',
'group': 'local'
}),
)
def _get_mih(self, appid):
""" returns migration context handler & shutdown function """
config = cwcfg.config_for(appid)
if self.config.ext_sources:
assert not self.config.system_only
sources = self.config.ext_sources
elif self.config.system_only:
sources = ('system',)
else:
sources = ('all',)
config.set_sources_mode(sources)
config.repairing = self.config.force
mih = config.migration_handler()
return mih, lambda: mih.shutdown()
def run(self, args):
appuri = args.pop(0)
mih, shutdown_callback = self._get_mih(appuri)
try:
with mih.cnx:
with mih.cnx.security_enabled(False, False):
if args:
# use cmdline parser to access left/right attributes only
# remember that usage requires instance appid as first argument
scripts, args = self.cmdline_parser.largs[1:], self.cmdline_parser.rargs
for script in scripts:
mih.cmd_process_script(script, scriptargs=args)
mih.commit()
else:
mih.interactive_shell()
finally:
shutdown_callback()
class RecompileInstanceCatalogsCommand(InstanceCommand):
"""Recompile i18n catalogs for instances.
<instance>...
identifiers of the instances to consider. If no instance is
given, recompile for all registered instances.
"""
name = 'i18ninstance'
@staticmethod
def i18ninstance_instance(appid):
"""recompile instance's messages catalogs"""
config = cwcfg.config_for(appid)
config.quick_start = True # notify this is not a regular start
repo = config.repository()
if config._cubes is None:
# web only config
config.init_cubes(repo.get_cubes())
errors = config.i18ncompile()
if errors:
print('\n'.join(errors))
class ListInstancesCommand(Command):
"""list available instances, useful for bash completion."""
name = 'listinstances'
hidden = True
def run(self, args):
"""run the command with its specific arguments"""
regdir = cwcfg.instances_dir()
for appid in sorted(listdir(regdir)):
print(appid)
class ListCubesCommand(Command):
"""list available componants, useful for bash completion."""
name = 'listcubes'
hidden = True
def run(self, args):
"""run the command with its specific arguments"""
for cube in cwcfg.available_cubes():
print(cube)
class ConfigureInstanceCommand(InstanceCommand):
"""Configure instance.
<instance>...
identifier of the instance to configure.
"""
name = 'configure'
actionverb = 'configured'
options = merge_options(
InstanceCommand.options + (
('param',
{'short': 'p', 'type': 'named', 'metavar': 'key1:value1,key2:value2',
'default': None,
'help': 'set <key> to <value> in configuration file.'}),
),
)
def configure_instance(self, appid):
if self.config.param is not None:
appcfg = cwcfg.config_for(appid)
for key, value in self.config.param.items():
try:
appcfg.global_set_option(key, value)
except KeyError:
raise ConfigurationError(
'unknown configuration key "%s" for mode %s' % (key, appcfg.name))
appcfg.save()
# WSGI #########
WSGI_CHOICES = {}
try:
from cubicweb.wsgi import server as stdlib_server
except ImportError:
pass
else:
WSGI_CHOICES['stdlib'] = stdlib_server
try:
from cubicweb.wsgi import wz
except ImportError:
pass
else:
WSGI_CHOICES['werkzeug'] = wz
try:
from cubicweb.wsgi import tnd
except ImportError:
pass
else:
WSGI_CHOICES['tornado'] = tnd
def wsgichoices():
return tuple(WSGI_CHOICES)
if WSGI_CHOICES:
class WSGIStartHandler(InstanceCommand):
"""Start an interactive wsgi server """
name = 'wsgi'
actionverb = 'started'
arguments = '<instance>'
@property
def options(self):
return (
("debug",
{'short': 'D', 'action': 'store_true',
'default': False,
'help': 'start server in debug mode.'}),
('method',
{'short': 'm',
'type': 'choice',
'metavar': '<method>',
'default': 'stdlib',
'choices': wsgichoices(),
'help': 'wsgi utility/method'}),
('loglevel',
{'short': 'l',
'type': 'choice',
'metavar': '<log level>',
'default': None,
'choices': ('debug', 'info', 'warning', 'error'),
'help': 'debug if -D is set, error otherwise',
}),
)
def wsgi_instance(self, appid):
config = cwcfg.config_for(appid, debugmode=self['debug'])
init_cmdline_log_threshold(config, self['loglevel'])
assert config.name == 'all-in-one'
meth = self['method']
server = WSGI_CHOICES[meth]
return server.run(config)
CWCTL.register(WSGIStartHandler)
for cmdcls in (ListCommand,
CreateInstanceCommand, DeleteInstanceCommand,
UpgradeInstanceCommand,
ListVersionsInstanceCommand,
ShellCommand,
RecompileInstanceCatalogsCommand,
ListInstancesCommand, ListCubesCommand,
ConfigureInstanceCommand,
):
CWCTL.register(cmdcls)
def run(args=sys.argv[1:]):
"""command line tool"""
filterwarnings('default', category=DeprecationWarning)
cwcfg.load_cwctl_plugins()
try:
CWCTL.run(args)
except ConfigurationError as err:
print('ERROR: ', err)
sys.exit(1)
except ExecutionError as err:
print(err)
sys.exit(2)
if __name__ == '__main__':
run()