




import argparse
import os
import re


# All paths are set with the intent you should run this script from the root of the repo with the command
# python utils/check_dummies.py
UpperCamelCase__              =						'src/transformers'

# Matches is_xxx_available()
UpperCamelCase__              =						re.compile(r'is\_([a-z_]*)_available()')
# Matches from xxx import bla
UpperCamelCase__              =						re.compile(r'\s+from\s+\S*\s+import\s+([^\(\s].*)\n')
UpperCamelCase__              =						re.compile(r'^\s+if\s+not\s+\(?is\_[a-z_]*\_available\(\)')


UpperCamelCase__              =						'\n{0} = None\n'

UpperCamelCase__              =						'\nclass {0}(metaclass=DummyObject):\n    _backends = {1}\n\n    def __init__(self, *args, **kwargs):\n        requires_backends(self, {1})\n'


UpperCamelCase__              =						'\ndef {0}(*args, **kwargs):\n    requires_backends({0}, {1})\n'






def 					snake_case					(							A			)							->							int:




	'''simple docstring'''


	if _re_test_backend.search(A			) is None:
		return None
	lowerCamelCase_							:		int							   =							[b[0] for b in _re_backend.findall(A			)]
	backends.sort()
	return "_and_".join(A			)






def 					snake_case					(							)							->							List[str]:




	'''simple docstring'''


	with open(os.path.join(A						,   '__init__.py'			)						,   'r'						,   encoding='utf-8'						,   newline='\n'			) as f:
		lowerCamelCase_							:		Optional[Any]							   =							f.readlines()

	# Get to the point we do the actual imports for type checking
	lowerCamelCase_							:		Optional[int]							   =							0
	while not lines[line_index].startswith('if TYPE_CHECKING'			):
		line_index += 1

	lowerCamelCase_							:		List[str]							   =							{}
	# Go through the end of the file
	while line_index < len(A			):
		# If the line is an if is_backend_available, we grab all objects associated.
		lowerCamelCase_							:		Union[str, Any]							   =							find_backend(lines[line_index]			)
		if backend is not None:
			while not lines[line_index].startswith('    else:'			):
				line_index += 1
			line_index += 1

			lowerCamelCase_							:		str							   =							[]
			# Until we unindent, add backend objects to the list
			while len(lines[line_index]			) <= 1 or lines[line_index].startswith(' ' * 8			):
				lowerCamelCase_							:		List[Any]							   =							lines[line_index]
				lowerCamelCase_							:		List[str]							   =							_re_single_line_import.search(A			)
				if single_line_import_search is not None:
					objects.extend(single_line_import_search.groups()[0].split(', '			)			)
				elif line.startswith(' ' * 12			):
					objects.append(line[12:-2]			)
				line_index += 1

			lowerCamelCase_							:		Tuple							   =							objects
		else:
			line_index += 1

	return backend_specific_objects






def 					snake_case					(							A						,   A			)							->							Any:




	'''simple docstring'''


	if name.isupper():
		return DUMMY_CONSTANT.format(A			)
	elif name.islower():
		return DUMMY_FUNCTION.format(A						,   A			)
	else:
		return DUMMY_CLASS.format(A						,   A			)






def 					snake_case					(							A=None			)							->							Optional[Any]:




	'''simple docstring'''


	if backend_specific_objects is None:
		lowerCamelCase_							:		List[Any]							   =							read_init()
	# For special correspondence backend to module name as used in the function requires_modulename
	lowerCamelCase_							:		Dict							   =							{}

	for backend, objects in backend_specific_objects.items():
		lowerCamelCase_							:		Optional[Any]							   =							'[' + ', '.join(f"\"{b}\"" for b in backend.split('_and_'			)			) + ']'
		lowerCamelCase_							:		Dict							   =							'# This file is autogenerated by the command `make fix-copies`, do not edit.\n'
		dummy_file += "from ..utils import DummyObject, requires_backends\n\n"
		dummy_file += "\n".join([create_dummy_object(A						,   A			) for o in objects]			)
		lowerCamelCase_							:		List[Any]							   =							dummy_file

	return dummy_files






def 					snake_case					(							A=False			)							->							Union[str, Any]:




	'''simple docstring'''


	lowerCamelCase_							:		List[Any]							   =							create_dummy_files()
	# For special correspondence backend to shortcut as used in utils/dummy_xxx_objects.py
	lowerCamelCase_							:		str							   =							{'torch': 'pt'}

	# Locate actual dummy modules and read their content.
	lowerCamelCase_							:		Tuple							   =							os.path.join(A						,   'utils'			)
	lowerCamelCase_							:		Tuple							   =							{
	    backend: os.path.join(A						,   f"dummy_{short_names.get(A						,   A			)}_objects.py"			)
	    for backend in dummy_files.keys()
	}

	lowerCamelCase_							:		Tuple							   =							{}
	for backend, file_path in dummy_file_paths.items():
		if os.path.isfile(A			):
			with open(A						,   'r'						,   encoding='utf-8'						,   newline='\n'			) as f:
				lowerCamelCase_							:		str							   =							f.read()
		else:
			lowerCamelCase_							:		Union[str, Any]							   =							''

	for backend in dummy_files.keys():
		if dummy_files[backend] != actual_dummies[backend]:
			if overwrite:
				print(
				    f"Updating transformers.utils.dummy_{short_names.get(A						,   A			)}_objects.py as the main "
				    '__init__ has new objects.'			)
				with open(dummy_file_paths[backend]						,   'w'						,   encoding='utf-8'						,   newline='\n'			) as f:
					f.write(dummy_files[backend]			)
			else:
				raise ValueError(
				    'The main __init__ has objects that are not present in '
				    f"transformers.utils.dummy_{short_names.get(A						,   A			)}_objects.py. Run `make fix-copies` "
				    'to fix this.'			)


if __name__ == "__main__":
							UpperCamelCase__              =						argparse.ArgumentParser()
							parser.add_argument('--fix_and_overwrite', action='store_true', help='Whether to fix inconsistencies.')
							UpperCamelCase__              =						parser.parse_args()

							check_dummies(args.fix_and_overwrite)






def 					snake_case					(							A			)							->							int:




	'''simple docstring'''


	if not isinstance(A						,   A			):
		raise ValueError('double_factorial() only accepts integral values'			)
	if n < 0:
		raise ValueError('double_factorial() not defined for negative values'			)
	return 1 if n <= 1 else n * double_factorial(n - 2			)


if __name__ == "__main__":
							import doctest

							doctest.testmod()
