tools/testing/kunit/kunit.py - linux - Git at Google

 #!/usr/bin/env python3
 # SPDX-License-Identifier: GPL-2.0
 #
 # A thin wrapper on top of the KUnit Kernel
 #
 # Copyright (C) 2019, Google LLC.
 # Author: Felix Guo <felixguoxiuping@gmail.com>
 # Author: Brendan Higgins <brendanhiggins@google.com>

 import argparse
 import sys
 import os
 import time

 from collections import namedtuple
 from enum import Enum, auto

 import kunit_config
 import kunit_json
 import kunit_kernel
 import kunit_parser

 KunitResult = namedtuple('KunitResult', ['status','result','elapsed_time'])

 KunitConfigRequest = namedtuple('KunitConfigRequest',
 				['build_dir', 'make_options'])
 KunitBuildRequest = namedtuple('KunitBuildRequest',
 			       ['jobs', 'build_dir', 'alltests',
 				'make_options'])
 KunitExecRequest = namedtuple('KunitExecRequest',
 			      ['timeout', 'build_dir', 'alltests', 'filter_glob'])
 KunitParseRequest = namedtuple('KunitParseRequest',
 			       ['raw_output', 'input_data', 'build_dir', 'json'])
 KunitRequest = namedtuple('KunitRequest', ['raw_output','timeout', 'jobs',
 					   'build_dir', 'alltests', 'filter_glob',
 					   'json', 'make_options'])

 KernelDirectoryPath = sys.argv[0].split('tools/testing/kunit/')[0]

 class KunitStatus(Enum):
 	SUCCESS = auto()
 	CONFIG_FAILURE = auto()
 	BUILD_FAILURE = auto()
 	TEST_FAILURE = auto()

 def get_kernel_root_path() -> str:
 	path = sys.argv[0] if not __file__ else __file__
 	parts = os.path.realpath(path).split('tools/testing/kunit')
 	if len(parts) != 2:
 		sys.exit(1)
 	return parts[0]

 def config_tests(linux: kunit_kernel.LinuxSourceTree,
 		 request: KunitConfigRequest) -> KunitResult:
 	kunit_parser.print_with_timestamp('Configuring KUnit Kernel ...')

 	config_start = time.time()
 	success = linux.build_reconfig(request.build_dir, request.make_options)
 	config_end = time.time()
 	if not success:
 		return KunitResult(KunitStatus.CONFIG_FAILURE,
 				   'could not configure kernel',
 				   config_end - config_start)
 	return KunitResult(KunitStatus.SUCCESS,
 			   'configured kernel successfully',
 			   config_end - config_start)

 def build_tests(linux: kunit_kernel.LinuxSourceTree,
 		request: KunitBuildRequest) -> KunitResult:
 	kunit_parser.print_with_timestamp('Building KUnit Kernel ...')

 	build_start = time.time()
 	success = linux.build_um_kernel(request.alltests,
 					request.jobs,
 					request.build_dir,
 					request.make_options)
 	build_end = time.time()
 	if not success:
 		return KunitResult(KunitStatus.BUILD_FAILURE,
 				   'could not build kernel',
 				   build_end - build_start)
 	if not success:
 		return KunitResult(KunitStatus.BUILD_FAILURE,
 				   'could not build kernel',
 				   build_end - build_start)
 	return KunitResult(KunitStatus.SUCCESS,
 			   'built kernel successfully',
 			   build_end - build_start)

 def exec_tests(linux: kunit_kernel.LinuxSourceTree,
 	       request: KunitExecRequest) -> KunitResult:
 	kunit_parser.print_with_timestamp('Starting KUnit Kernel ...')
 	test_start = time.time()
 	result = linux.run_kernel(
 		timeout=None if request.alltests else request.timeout,
                 filter_glob=request.filter_glob,
 		build_dir=request.build_dir)

 	test_end = time.time()

 	return KunitResult(KunitStatus.SUCCESS,
 			   result,
 			   test_end - test_start)

 def parse_tests(request: KunitParseRequest) -> KunitResult:
 	parse_start = time.time()

 	test_result = kunit_parser.TestResult(kunit_parser.TestStatus.SUCCESS,
 					      [],
 					      'Tests not Parsed.')

 	if request.raw_output:
 		kunit_parser.raw_output(request.input_data)
 	else:
 		test_result = kunit_parser.parse_run_tests(request.input_data)
 	parse_end = time.time()

 	if request.json:
 		json_obj = kunit_json.get_json_result(
 					test_result=test_result,
 					def_config='kunit_defconfig',
 					build_dir=request.build_dir,
 					json_path=request.json)
 		if request.json == 'stdout':
 			print(json_obj)

 	if test_result.status != kunit_parser.TestStatus.SUCCESS:
 		return KunitResult(KunitStatus.TEST_FAILURE, test_result,
 				   parse_end - parse_start)

 	return KunitResult(KunitStatus.SUCCESS, test_result,
 				parse_end - parse_start)


 def run_tests(linux: kunit_kernel.LinuxSourceTree,
 	      request: KunitRequest) -> KunitResult:
 	run_start = time.time()

 	config_request = KunitConfigRequest(request.build_dir,
 					    request.make_options)
 	config_result = config_tests(linux, config_request)
 	if config_result.status != KunitStatus.SUCCESS:
 		return config_result

 	build_request = KunitBuildRequest(request.jobs, request.build_dir,
 					  request.alltests,
 					  request.make_options)
 	build_result = build_tests(linux, build_request)
 	if build_result.status != KunitStatus.SUCCESS:
 		return build_result

 	exec_request = KunitExecRequest(request.timeout, request.build_dir,
 					request.alltests, request.filter_glob)
 	exec_result = exec_tests(linux, exec_request)
 	if exec_result.status != KunitStatus.SUCCESS:
 		return exec_result

 	parse_request = KunitParseRequest(request.raw_output,
 					  exec_result.result,
 					  request.build_dir,
 					  request.json)
 	parse_result = parse_tests(parse_request)

 	run_end = time.time()

 	kunit_parser.print_with_timestamp((
 		'Elapsed time: %.3fs total, %.3fs configuring, %.3fs ' +
 		'building, %.3fs running\n') % (
 				run_end - run_start,
 				config_result.elapsed_time,
 				build_result.elapsed_time,
 				exec_result.elapsed_time))
 	return parse_result

 def add_common_opts(parser) -> None:
 	parser.add_argument('--build_dir',
 			    help='As in the make command, it specifies the build '
 			    'directory.',
                             type=str, default='.kunit', metavar='build_dir')
 	parser.add_argument('--make_options',
 			    help='X=Y make option, can be repeated.',
 			    action='append')
 	parser.add_argument('--alltests',
 			    help='Run all KUnit tests through allyesconfig',
 			    action='store_true')
 	parser.add_argument('--kunitconfig',
 			     help='Path to Kconfig fragment that enables KUnit tests.'
 			     ' If given a directory, (e.g. lib/kunit), "/.kunitconfig" '
 			     'will get  automatically appended.',
 			     metavar='kunitconfig')

 def add_build_opts(parser) -> None:
 	parser.add_argument('--jobs',
 			    help='As in the make command, "Specifies  the number of '
 			    'jobs (commands) to run simultaneously."',
 			    type=int, default=8, metavar='jobs')

 def add_exec_opts(parser) -> None:
 	parser.add_argument('--timeout',
 			    help='maximum number of seconds to allow for all tests '
 			    'to run. This does not include time taken to build the '
 			    'tests.',
 			    type=int,
 			    default=300,
 			    metavar='timeout')
 	parser.add_argument('filter_glob',
 			    help='maximum number of seconds to allow for all tests '
 			    'to run. This does not include time taken to build the '
 			    'tests.',
 			    type=str,
 			    nargs='?',
 			    default='',
 			    metavar='filter_glob')

 def add_parse_opts(parser) -> None:
 	parser.add_argument('--raw_output', help='don\'t format output from kernel',
 			    action='store_true')
 	parser.add_argument('--json',
 			    nargs='?',
 			    help='Stores test results in a JSON, and either '
 			    'prints to stdout or saves to file if a '
 			    'filename is specified',
 			    type=str, const='stdout', default=None)

 def main(argv, linux=None):
 	parser = argparse.ArgumentParser(
 			description='Helps writing and running KUnit tests.')
 	subparser = parser.add_subparsers(dest='subcommand')

 	# The 'run' command will config, build, exec, and parse in one go.
 	run_parser = subparser.add_parser('run', help='Runs KUnit tests.')
 	add_common_opts(run_parser)
 	add_build_opts(run_parser)
 	add_exec_opts(run_parser)
 	add_parse_opts(run_parser)

 	config_parser = subparser.add_parser('config',
 						help='Ensures that .config contains all of '
 						'the options in .kunitconfig')
 	add_common_opts(config_parser)

 	build_parser = subparser.add_parser('build', help='Builds a kernel with KUnit tests')
 	add_common_opts(build_parser)
 	add_build_opts(build_parser)

 	exec_parser = subparser.add_parser('exec', help='Run a kernel with KUnit tests')
 	add_common_opts(exec_parser)
 	add_exec_opts(exec_parser)
 	add_parse_opts(exec_parser)

 	# The 'parse' option is special, as it doesn't need the kernel source
 	# (therefore there is no need for a build_dir, hence no add_common_opts)
 	# and the '--file' argument is not relevant to 'run', so isn't in
 	# add_parse_opts()
 	parse_parser = subparser.add_parser('parse',
 					    help='Parses KUnit results from a file, '
 					    'and parses formatted results.')
 	add_parse_opts(parse_parser)
 	parse_parser.add_argument('file',
 				  help='Specifies the file to read results from.',
 				  type=str, nargs='?', metavar='input_file')

 	cli_args = parser.parse_args(argv)

 	if get_kernel_root_path():
 		os.chdir(get_kernel_root_path())

 	if cli_args.subcommand == 'run':
 		if not os.path.exists(cli_args.build_dir):
 			os.mkdir(cli_args.build_dir)

 		if not linux:
 			linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir, kunitconfig_path=cli_args.kunitconfig)

 		request = KunitRequest(cli_args.raw_output,
 				       cli_args.timeout,
 				       cli_args.jobs,
 				       cli_args.build_dir,
 				       cli_args.alltests,
 				       cli_args.filter_glob,
 				       cli_args.json,
 				       cli_args.make_options)
 		result = run_tests(linux, request)
 		if result.status != KunitStatus.SUCCESS:
 			sys.exit(1)
 	elif cli_args.subcommand == 'config':
 		if cli_args.build_dir and (
 				not os.path.exists(cli_args.build_dir)):
 			os.mkdir(cli_args.build_dir)

 		if not linux:
 			linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir, kunitconfig_path=cli_args.kunitconfig)

 		request = KunitConfigRequest(cli_args.build_dir,
 					     cli_args.make_options)
 		result = config_tests(linux, request)
 		kunit_parser.print_with_timestamp((
 			'Elapsed time: %.3fs\n') % (
 				result.elapsed_time))
 		if result.status != KunitStatus.SUCCESS:
 			sys.exit(1)
 	elif cli_args.subcommand == 'build':
 		if not linux:
 			linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir, kunitconfig_path=cli_args.kunitconfig)

 		request = KunitBuildRequest(cli_args.jobs,
 					    cli_args.build_dir,
 					    cli_args.alltests,
 					    cli_args.make_options)
 		result = build_tests(linux, request)
 		kunit_parser.print_with_timestamp((
 			'Elapsed time: %.3fs\n') % (
 				result.elapsed_time))
 		if result.status != KunitStatus.SUCCESS:
 			sys.exit(1)
 	elif cli_args.subcommand == 'exec':
 		if not linux:
 			linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir)

 		exec_request = KunitExecRequest(cli_args.timeout,
 						cli_args.build_dir,
 						cli_args.alltests,
 						cli_args.filter_glob)
 		exec_result = exec_tests(linux, exec_request)
 		parse_request = KunitParseRequest(cli_args.raw_output,
 						  exec_result.result,
 						  cli_args.build_dir,
 						  cli_args.json)
 		result = parse_tests(parse_request)
 		kunit_parser.print_with_timestamp((
 			'Elapsed time: %.3fs\n') % (
 				exec_result.elapsed_time))
 		if result.status != KunitStatus.SUCCESS:
 			sys.exit(1)
 	elif cli_args.subcommand == 'parse':
 		if cli_args.file == None:
 			kunit_output = sys.stdin
 		else:
 			with open(cli_args.file, 'r') as f:
 				kunit_output = f.read().splitlines()
 		request = KunitParseRequest(cli_args.raw_output,
 					    kunit_output,
 					    None,
 					    cli_args.json)
 		result = parse_tests(request)
 		if result.status != KunitStatus.SUCCESS:
 			sys.exit(1)
 	else:
 		parser.print_help()

 if __name__ == '__main__':
 	main(sys.argv[1:])
	#!/usr/bin/env python3
	# SPDX-License-Identifier: GPL-2.0
	#
	# A thin wrapper on top of the KUnit Kernel
	#
	# Copyright (C) 2019, Google LLC.
	# Author: Felix Guo <felixguoxiuping@gmail.com>
	# Author: Brendan Higgins <brendanhiggins@google.com>

	import argparse
	import sys
	import os
	import time

	from collections import namedtuple
	from enum import Enum, auto

	import kunit_config
	import kunit_json
	import kunit_kernel
	import kunit_parser

	KunitResult = namedtuple('KunitResult', ['status','result','elapsed_time'])

	KunitConfigRequest = namedtuple('KunitConfigRequest',
	['build_dir', 'make_options'])
	KunitBuildRequest = namedtuple('KunitBuildRequest',
	['jobs', 'build_dir', 'alltests',
	'make_options'])
	KunitExecRequest = namedtuple('KunitExecRequest',
	['timeout', 'build_dir', 'alltests', 'filter_glob'])
	KunitParseRequest = namedtuple('KunitParseRequest',
	['raw_output', 'input_data', 'build_dir', 'json'])
	KunitRequest = namedtuple('KunitRequest', ['raw_output','timeout', 'jobs',
	'build_dir', 'alltests', 'filter_glob',
	'json', 'make_options'])

	KernelDirectoryPath = sys.argv[0].split('tools/testing/kunit/')[0]

	class KunitStatus(Enum):
	SUCCESS = auto()
	CONFIG_FAILURE = auto()
	BUILD_FAILURE = auto()
	TEST_FAILURE = auto()

	def get_kernel_root_path() -> str:
	path = sys.argv[0] if not __file__ else __file__
	parts = os.path.realpath(path).split('tools/testing/kunit')
	if len(parts) != 2:
	sys.exit(1)
	return parts[0]

	def config_tests(linux: kunit_kernel.LinuxSourceTree,
	request: KunitConfigRequest) -> KunitResult:
	kunit_parser.print_with_timestamp('Configuring KUnit Kernel ...')

	config_start = time.time()
	success = linux.build_reconfig(request.build_dir, request.make_options)
	config_end = time.time()
	if not success:
	return KunitResult(KunitStatus.CONFIG_FAILURE,
	'could not configure kernel',
	config_end - config_start)
	return KunitResult(KunitStatus.SUCCESS,
	'configured kernel successfully',
	config_end - config_start)

	def build_tests(linux: kunit_kernel.LinuxSourceTree,
	request: KunitBuildRequest) -> KunitResult:
	kunit_parser.print_with_timestamp('Building KUnit Kernel ...')

	build_start = time.time()
	success = linux.build_um_kernel(request.alltests,
	request.jobs,
	request.build_dir,
	request.make_options)
	build_end = time.time()
	if not success:
	return KunitResult(KunitStatus.BUILD_FAILURE,
	'could not build kernel',
	build_end - build_start)
	if not success:
	return KunitResult(KunitStatus.BUILD_FAILURE,
	'could not build kernel',
	build_end - build_start)
	return KunitResult(KunitStatus.SUCCESS,
	'built kernel successfully',
	build_end - build_start)

	def exec_tests(linux: kunit_kernel.LinuxSourceTree,
	request: KunitExecRequest) -> KunitResult:
	kunit_parser.print_with_timestamp('Starting KUnit Kernel ...')
	test_start = time.time()
	result = linux.run_kernel(
	timeout=None if request.alltests else request.timeout,
	filter_glob=request.filter_glob,
	build_dir=request.build_dir)

	test_end = time.time()

	return KunitResult(KunitStatus.SUCCESS,
	result,
	test_end - test_start)

	def parse_tests(request: KunitParseRequest) -> KunitResult:
	parse_start = time.time()

	test_result = kunit_parser.TestResult(kunit_parser.TestStatus.SUCCESS,
	[],
	'Tests not Parsed.')

	if request.raw_output:
	kunit_parser.raw_output(request.input_data)
	else:
	test_result = kunit_parser.parse_run_tests(request.input_data)
	parse_end = time.time()

	if request.json:
	json_obj = kunit_json.get_json_result(
	test_result=test_result,
	def_config='kunit_defconfig',
	build_dir=request.build_dir,
	json_path=request.json)
	if request.json == 'stdout':
	print(json_obj)

	if test_result.status != kunit_parser.TestStatus.SUCCESS:
	return KunitResult(KunitStatus.TEST_FAILURE, test_result,
	parse_end - parse_start)

	return KunitResult(KunitStatus.SUCCESS, test_result,
	parse_end - parse_start)


	def run_tests(linux: kunit_kernel.LinuxSourceTree,
	request: KunitRequest) -> KunitResult:
	run_start = time.time()

	config_request = KunitConfigRequest(request.build_dir,
	request.make_options)
	config_result = config_tests(linux, config_request)
	if config_result.status != KunitStatus.SUCCESS:
	return config_result

	build_request = KunitBuildRequest(request.jobs, request.build_dir,
	request.alltests,
	request.make_options)
	build_result = build_tests(linux, build_request)
	if build_result.status != KunitStatus.SUCCESS:
	return build_result

	exec_request = KunitExecRequest(request.timeout, request.build_dir,
	request.alltests, request.filter_glob)
	exec_result = exec_tests(linux, exec_request)
	if exec_result.status != KunitStatus.SUCCESS:
	return exec_result

	parse_request = KunitParseRequest(request.raw_output,
	exec_result.result,
	request.build_dir,
	request.json)
	parse_result = parse_tests(parse_request)

	run_end = time.time()

	kunit_parser.print_with_timestamp((
	'Elapsed time: %.3fs total, %.3fs configuring, %.3fs ' +
	'building, %.3fs running\n') % (
	run_end - run_start,
	config_result.elapsed_time,
	build_result.elapsed_time,
	exec_result.elapsed_time))
	return parse_result

	def add_common_opts(parser) -> None:
	parser.add_argument('--build_dir',
	help='As in the make command, it specifies the build '
	'directory.',
	type=str, default='.kunit', metavar='build_dir')
	parser.add_argument('--make_options',
	help='X=Y make option, can be repeated.',
	action='append')
	parser.add_argument('--alltests',
	help='Run all KUnit tests through allyesconfig',
	action='store_true')
	parser.add_argument('--kunitconfig',
	help='Path to Kconfig fragment that enables KUnit tests.'
	' If given a directory, (e.g. lib/kunit), "/.kunitconfig" '
	'will get automatically appended.',
	metavar='kunitconfig')

	def add_build_opts(parser) -> None:
	parser.add_argument('--jobs',
	help='As in the make command, "Specifies the number of '
	'jobs (commands) to run simultaneously."',
	type=int, default=8, metavar='jobs')

	def add_exec_opts(parser) -> None:
	parser.add_argument('--timeout',
	help='maximum number of seconds to allow for all tests '
	'to run. This does not include time taken to build the '
	'tests.',
	type=int,
	default=300,
	metavar='timeout')
	parser.add_argument('filter_glob',
	help='maximum number of seconds to allow for all tests '
	'to run. This does not include time taken to build the '
	'tests.',
	type=str,
	nargs='?',
	default='',
	metavar='filter_glob')

	def add_parse_opts(parser) -> None:
	parser.add_argument('--raw_output', help='don\'t format output from kernel',
	action='store_true')
	parser.add_argument('--json',
	nargs='?',
	help='Stores test results in a JSON, and either '
	'prints to stdout or saves to file if a '
	'filename is specified',
	type=str, const='stdout', default=None)

	def main(argv, linux=None):
	parser = argparse.ArgumentParser(
	description='Helps writing and running KUnit tests.')
	subparser = parser.add_subparsers(dest='subcommand')

	# The 'run' command will config, build, exec, and parse in one go.
	run_parser = subparser.add_parser('run', help='Runs KUnit tests.')
	add_common_opts(run_parser)
	add_build_opts(run_parser)
	add_exec_opts(run_parser)
	add_parse_opts(run_parser)

	config_parser = subparser.add_parser('config',
	help='Ensures that .config contains all of '
	'the options in .kunitconfig')
	add_common_opts(config_parser)

	build_parser = subparser.add_parser('build', help='Builds a kernel with KUnit tests')
	add_common_opts(build_parser)
	add_build_opts(build_parser)

	exec_parser = subparser.add_parser('exec', help='Run a kernel with KUnit tests')
	add_common_opts(exec_parser)
	add_exec_opts(exec_parser)
	add_parse_opts(exec_parser)

	# The 'parse' option is special, as it doesn't need the kernel source
	# (therefore there is no need for a build_dir, hence no add_common_opts)
	# and the '--file' argument is not relevant to 'run', so isn't in
	# add_parse_opts()
	parse_parser = subparser.add_parser('parse',
	help='Parses KUnit results from a file, '
	'and parses formatted results.')
	add_parse_opts(parse_parser)
	parse_parser.add_argument('file',
	help='Specifies the file to read results from.',
	type=str, nargs='?', metavar='input_file')

	cli_args = parser.parse_args(argv)

	if get_kernel_root_path():
	os.chdir(get_kernel_root_path())

	if cli_args.subcommand == 'run':
	if not os.path.exists(cli_args.build_dir):
	os.mkdir(cli_args.build_dir)

	if not linux:
	linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir, kunitconfig_path=cli_args.kunitconfig)

	request = KunitRequest(cli_args.raw_output,
	cli_args.timeout,
	cli_args.jobs,
	cli_args.build_dir,
	cli_args.alltests,
	cli_args.filter_glob,
	cli_args.json,
	cli_args.make_options)
	result = run_tests(linux, request)
	if result.status != KunitStatus.SUCCESS:
	sys.exit(1)
	elif cli_args.subcommand == 'config':
	if cli_args.build_dir and (
	not os.path.exists(cli_args.build_dir)):
	os.mkdir(cli_args.build_dir)

	if not linux:
	linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir, kunitconfig_path=cli_args.kunitconfig)

	request = KunitConfigRequest(cli_args.build_dir,
	cli_args.make_options)
	result = config_tests(linux, request)
	kunit_parser.print_with_timestamp((
	'Elapsed time: %.3fs\n') % (
	result.elapsed_time))
	if result.status != KunitStatus.SUCCESS:
	sys.exit(1)
	elif cli_args.subcommand == 'build':
	if not linux:
	linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir, kunitconfig_path=cli_args.kunitconfig)

	request = KunitBuildRequest(cli_args.jobs,
	cli_args.build_dir,
	cli_args.alltests,
	cli_args.make_options)
	result = build_tests(linux, request)
	kunit_parser.print_with_timestamp((
	'Elapsed time: %.3fs\n') % (
	result.elapsed_time))
	if result.status != KunitStatus.SUCCESS:
	sys.exit(1)
	elif cli_args.subcommand == 'exec':
	if not linux:
	linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir)

	exec_request = KunitExecRequest(cli_args.timeout,
	cli_args.build_dir,
	cli_args.alltests,
	cli_args.filter_glob)
	exec_result = exec_tests(linux, exec_request)
	parse_request = KunitParseRequest(cli_args.raw_output,
	exec_result.result,
	cli_args.build_dir,
	cli_args.json)
	result = parse_tests(parse_request)
	kunit_parser.print_with_timestamp((
	'Elapsed time: %.3fs\n') % (
	exec_result.elapsed_time))
	if result.status != KunitStatus.SUCCESS:
	sys.exit(1)
	elif cli_args.subcommand == 'parse':
	if cli_args.file == None:
	kunit_output = sys.stdin
	else:
	with open(cli_args.file, 'r') as f:
	kunit_output = f.read().splitlines()
	request = KunitParseRequest(cli_args.raw_output,
	kunit_output,
	None,
	cli_args.json)
	result = parse_tests(request)
	if result.status != KunitStatus.SUCCESS:
	sys.exit(1)
	else:
	parser.print_help()

	if __name__ == '__main__':
	main(sys.argv[1:])