


import collections
import importlib.util
import os
import re
from pathlib import Path


_A		       =						'src/transformers'


# Matches is_xxx_available()
_A		       =						re.compile(R'is\_([a-z_]*)_available()')
# Catches a one-line _import_struct = {xxx}
_A		       =						re.compile(R'^_import_structure\s+=\s+\{([^\}]+)\}')
# Catches a line with a key-values pattern: "bla": ["foo", "bar"]
_A		       =						re.compile(R'\s+\"\S*\":\s+\[([^\]]*)\]')
# Catches a line if not is_foo_available
_A		       =						re.compile(R'^\s*if\s+not\s+is\_[a-z_]*\_available\(\)')
# Catches a line _import_struct["bla"].append("foo")
_A		       =						re.compile(R'^\s*_import_structure\[\"\S*\"\]\.append\(\"(\S*)\"\)')
# Catches a line _import_struct["bla"].extend(["foo", "bar"]) or _import_struct["bla"] = ["foo", "bar"]
_A		       =						re.compile(R'^\s*_import_structure\[\S*\](?:\.extend\(|\s*=\s+)\[([^\]]*)\]')
# Catches a line with an object between quotes and a comma:     "MyModel",
_A		       =						re.compile('^\s+\"([^\"]+)\",')
# Catches a line with objects between brackets only:    ["foo", "bar"],
_A		       =						re.compile('^\s+\[([^\]]+)\]')
# Catches a line with from foo import bar, bla, boo
_A		       =						re.compile(R'\s+from\s+\S*\s+import\s+([^\(\s].*)\n')
# Catches a line with try:
_A		       =						re.compile(R'^\s*try:')
# Catches a line with else:
_A		       =						re.compile(R'^\s*else:')

def 						_UpperCAmelCase				(			SCREAMING_SNAKE_CASE__			:					Dict				):
     if _re_test_backend.search(lowercase__				) is None:
          return None
     __UpperCamelCase    							=[b[0] for b in _re_backend.findall(lowercase__				)]
     backends.sort()
     return "_and_".join(lowercase__				)

def 						_UpperCAmelCase				(			SCREAMING_SNAKE_CASE__			:					Dict				):
     with open(lowercase__			,     'r'			,     encoding='utf-8'			,     newline='\n'				) as f:
          __UpperCamelCase    							=f.readlines()

     __UpperCamelCase    							=0
     while line_index < len(lowercase__				) and not lines[line_index].startswith('_import_structure = {'				):
          line_index += 1

     # If this is a traditional init, just return.
     if line_index >= len(lowercase__				):
          return None

     # First grab the objects without a specific backend in _import_structure
     __UpperCamelCase    							=[]
     while not lines[line_index].startswith('if TYPE_CHECKING'				) and find_backend(lines[line_index]				) is None:
          __UpperCamelCase    							=lines[line_index]
          # If we have everything on a single line, let's deal with it.
          if _re_one_line_import_struct.search(lowercase__				):
               __UpperCamelCase    							=_re_one_line_import_struct.search(lowercase__				).groups()[0]
               __UpperCamelCase    							=re.findall('\[([^\]]+)\]'			,     lowercase__				)
               for imp in imports:
                    objects.extend([obj[1:-1] for obj in imp.split(', '				)]				)
               line_index += 1
               continue
          __UpperCamelCase    							=_re_import_struct_key_value.search(lowercase__				)
          if single_line_import_search is not None:
               __UpperCamelCase    							=[obj[1:-1] for obj in single_line_import_search.groups()[0].split(', '				) if len(lowercase__				) > 0]
               objects.extend(lowercase__				)
          elif line.startswith(' ' * 8 + '"'				):
               objects.append(line[9:-3]				)
          line_index += 1

     __UpperCamelCase    							={'none': objects}
     # Let's continue with backend-specific objects in _import_structure
     while not lines[line_index].startswith('if TYPE_CHECKING'				):
          # If the line is an if not is_backend_available, we grab all objects associated.
          __UpperCamelCase    							=find_backend(lines[line_index]				)
          # Check if the backend declaration is inside a try block:
          if _re_try.search(lines[line_index - 1]				) is None:
               __UpperCamelCase    							=None

          if backend is not None:
               line_index += 1

               # Scroll until we hit the else block of try-except-else
               while _re_else.search(lines[line_index]				) is None:
                    line_index += 1

               line_index += 1

               __UpperCamelCase    							=[]
               # Until we unindent, add backend objects to the list
               while len(lines[line_index]				) <= 1 or lines[line_index].startswith(' ' * 4				):
                    __UpperCamelCase    							=lines[line_index]
                    if _re_import_struct_add_one.search(lowercase__				) is not None:
                         objects.append(_re_import_struct_add_one.search(lowercase__				).groups()[0]				)
                    elif _re_import_struct_add_many.search(lowercase__				) is not None:
                         __UpperCamelCase    							=_re_import_struct_add_many.search(lowercase__				).groups()[0].split(', '				)
                         __UpperCamelCase    							=[obj[1:-1] for obj in imports if len(lowercase__				) > 0]
                         objects.extend(lowercase__				)
                    elif _re_between_brackets.search(lowercase__				) is not None:
                         __UpperCamelCase    							=_re_between_brackets.search(lowercase__				).groups()[0].split(', '				)
                         __UpperCamelCase    							=[obj[1:-1] for obj in imports if len(lowercase__				) > 0]
                         objects.extend(lowercase__				)
                    elif _re_quote_object.search(lowercase__				) is not None:
                         objects.append(_re_quote_object.search(lowercase__				).groups()[0]				)
                    elif line.startswith(' ' * 8 + '"'				):
                         objects.append(line[9:-3]				)
                    elif line.startswith(' ' * 12 + '"'				):
                         objects.append(line[13:-3]				)
                    line_index += 1

               __UpperCamelCase    							=objects
          else:
               line_index += 1

    # At this stage we are in the TYPE_CHECKING part, first grab the objects without a specific backend
     __UpperCamelCase    							=[]
     while (
         line_index < len(lowercase__				)
         and find_backend(lines[line_index]				) is None
         and not lines[line_index].startswith('else'				)
     ):
          __UpperCamelCase    							=lines[line_index]
          __UpperCamelCase    							=_re_import.search(lowercase__				)
          if single_line_import_search is not None:
               objects.extend(single_line_import_search.groups()[0].split(', '				)				)
          elif line.startswith(' ' * 8				):
               objects.append(line[8:-2]				)
          line_index += 1

     __UpperCamelCase    							={'none': objects}
     # Let's continue with backend-specific objects
     while line_index < len(lowercase__				):
          # If the line is an if is_backend_available, we grab all objects associated.
          __UpperCamelCase    							=find_backend(lines[line_index]				)
          # Check if the backend declaration is inside a try block:
          if _re_try.search(lines[line_index - 1]				) is None:
               __UpperCamelCase    							=None

          if backend is not None:
               line_index += 1

               # Scroll until we hit the else block of try-except-else
               while _re_else.search(lines[line_index]				) is None:
                    line_index += 1

               line_index += 1

               __UpperCamelCase    							=[]
               # Until we unindent, add backend objects to the list
               while len(lines[line_index]				) <= 1 or lines[line_index].startswith(' ' * 8				):
                    __UpperCamelCase    							=lines[line_index]
                    __UpperCamelCase    							=_re_import.search(lowercase__				)
                    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

               __UpperCamelCase    							=objects
          else:
               line_index += 1

     return import_dict_objects, type_hint_objects

def 						_UpperCAmelCase				(			SCREAMING_SNAKE_CASE__			:					Tuple			,     SCREAMING_SNAKE_CASE__			:					List[Any]				):

     def find_duplicates(SCREAMING_SNAKE_CASE__			:					Tuple				):
          return [k for k, v in collections.Counter(lowercase__				).items() if v > 1]

     if list(import_dict_objects.keys()				) != list(type_hint_objects.keys()				):
          return ["Both sides of the init do not have the same backends!"]

     __UpperCamelCase    							=[]
     for key in import_dict_objects.keys():
          __UpperCamelCase    							=find_duplicates(import_dict_objects[key]				)
          if duplicate_imports:
               errors.append(F'Duplicate _import_structure definitions for: {duplicate_imports}'				)
          __UpperCamelCase    							=find_duplicates(type_hint_objects[key]				)
          if duplicate_type_hints:
               errors.append(F'Duplicate TYPE_CHECKING objects for: {duplicate_type_hints}'				)

          if sorted(set(import_dict_objects[key]				)				) != sorted(set(type_hint_objects[key]				)				):
               __UpperCamelCase    							='base imports' if key == 'none' else F'{key} backend'
               errors.append(F'Differences for {name}:'				)
               for a in type_hint_objects[key]:
                    if a not in import_dict_objects[key]:
                         errors.append(F'  {a} in TYPE_HINT but not in _import_structure.'				)
               for a in import_dict_objects[key]:
                    if a not in type_hint_objects[key]:
                         errors.append(F'  {a} in _import_structure but not in TYPE_HINT.'				)
     return errors

def 						_UpperCAmelCase				(			):
     __UpperCamelCase    							=[]
     for root, _, files in os.walk(lowercase__				):
          if "__init__.py" in files:
               __UpperCamelCase    							=os.path.join(lowercase__			,     '__init__.py'				)
               __UpperCamelCase    							=parse_init(lowercase__				)
               if objects is not None:
                    __UpperCamelCase    							=analyze_results(*lowercase__				)
                    if len(lowercase__				) > 0:
                         __UpperCamelCase    							=F'Problem in {fname}, both halves do not define the same objects.\n{errors[0]}'
                         failures.append('\n'.join(lowercase__				)				)
     if len(lowercase__				) > 0:
          raise ValueError('\n\n'.join(lowercase__				)				)

def 						_UpperCAmelCase				(			):
     __UpperCamelCase    							=[]
     for path, directories, files in os.walk(lowercase__				):
          for folder in directories:
               # Ignore private modules
               if folder.startswith('_'				):
                    directories.remove(lowercase__				)
                    continue
               # Ignore leftovers from branches (empty folders apart from pycache)
               if len(list((Path(lowercase__				) / folder).glob('*.py'				)				)				) == 0:
                    continue
               __UpperCamelCase    							=str((Path(lowercase__				) / folder).relative_to(lowercase__				)				)
               __UpperCamelCase    							=short_path.replace(os.path.sep			,     '.'				)
               submodules.append(lowercase__				)
          for fname in files:
               if fname == "__init__.py":
                    continue
               __UpperCamelCase    							=str((Path(lowercase__				) / fname).relative_to(lowercase__				)				)
               __UpperCamelCase    							=short_path.replace('.py'			,     ''				).replace(os.path.sep			,     '.'				)
               if len(submodule.split('.'				)				) == 1:
                    submodules.append(lowercase__				)
     return submodules


_A		       =						[
    'convert_pytorch_checkpoint_to_tf2',
    'modeling_flax_pytorch_utils',
]

def 						_UpperCAmelCase				(			):
     # This is to make sure the transformers module imported is the one in the repo.
     __UpperCamelCase    							=importlib.util.spec_from_file_location(
         'transformers'			,     os.path.join(lowercase__			,     '__init__.py'				)			,     submodule_search_locations=[PATH_TO_TRANSFORMERS]			,     )
     __UpperCamelCase    							=spec.loader.load_module()

     __UpperCamelCase    							=[
         module
         for module in get_transformers_submodules()
         if module not in IGNORE_SUBMODULES and module not in transformers._import_structure.keys()
     ]
     if len(lowercase__				) > 0:
          __UpperCamelCase    							='\n'.join(F'- {module}' for module in module_not_registered				)
          raise ValueError(
              'The following submodules are not properly registered in the main init of Transformers:\n'
              F'{list_of_modules}\n'
              'Make sure they appear somewhere in the keys of `_import_structure` with an empty list as value.'				)


if __name__ == "__main__":
   check_all_inits()
   check_submodules()











"""simple docstring"""






from __future__ import annotations

from collections.abc import Iterator
from typing import Any






class lowerCAmelCase__	:






			'''simple docstring'''



			def __init__(  self  ,      lowercase  ):
							_lowerCamelCase     :			Any    =    data
							_lowerCamelCase     :			Node | None    =    None






class lowerCAmelCase__	:






			'''simple docstring'''



			def __init__(  self  ):
							_lowerCamelCase     :			str    =    None
							_lowerCamelCase     :			str    =    None
			def __iter__(  self  ):
							_lowerCamelCase     :			List[str]    =    self.head
							while self.head:
											yield node.data
											_lowerCamelCase     :			Optional[int]    =    node.next
											if node == self.head:
															break
			def __len__(  self  ):
							return sum(1 for _ in self  )
			def __repr__(  self  ):
							return "->".join(str(lowercase  ) for item in iter(self  )  )
			def 					A_    (  self  ,      lowercase  ):
							self.insert_nth(len(self  )  ,      lowercase  )
			def 					A_    (  self  ,      lowercase  ):
							self.insert_nth(0  ,      lowercase  )
			def 					A_    (  self  ,      lowercase  ,      lowercase  ):
							if index < 0 or index > len(self  ):
											raise IndexError('list index out of range.'  )
							_lowerCamelCase     :			List[Any]    =    Node(lowercase  )
							if self.head is None:
											_lowerCamelCase     :			str    =    new_node  # first node points itself
											_lowerCamelCase     :			Union[str, Any]    =    new_node
							elif index == 0:  # insert at head
											_lowerCamelCase     :			List[str]    =    self.head
											_lowerCamelCase     :			str    =    new_node
							else:
											_lowerCamelCase     :			Union[str, Any]    =    self.head
											for _ in range(index - 1  ):
															_lowerCamelCase     :			List[Any]    =    temp.next
											_lowerCamelCase     :			Union[str, Any]    =    temp.next
											_lowerCamelCase     :			List[str]    =    new_node
											if index == len(self  ) - 1:  # insert at tail
															_lowerCamelCase     :			Any    =    new_node
			def 					A_    (  self  ):
							return self.delete_nth(0  )
			def 					A_    (  self  ):
							return self.delete_nth(len(self  ) - 1  )
			def 					A_    (  self  ,      lowercase = 0  ):
							if not 0 <= index < len(self  ):
											raise IndexError('list index out of range.'  )
							_lowerCamelCase     :			Any    =    self.head
							if self.head == self.tail:  # just one node
											_lowerCamelCase     :			List[str]    =    None
							elif index == 0:  # delete head node
											_lowerCamelCase     :			List[str]    =    self.tail.next.next
											_lowerCamelCase     :			Optional[int]    =    self.head.next
							else:
											_lowerCamelCase     :			Dict    =    self.head
											for _ in range(index - 1  ):
															_lowerCamelCase     :			List[Any]    =    temp.next
											_lowerCamelCase     :			int    =    temp.next
											_lowerCamelCase     :			Optional[int]    =    temp.next.next
											if index == len(self  ) - 1:  # delete at tail
															_lowerCamelCase     :			List[Any]    =    temp
							return delete_node.data






			def 					A_    (  self  ):
							return len(self  ) == 0







def      _snake_case			(				):
				_lowerCamelCase     :			Union[str, Any]    =    CircularLinkedList()
				assert len(lowercase__		) == 0
				assert circular_linked_list.is_empty() is True
				assert str(lowercase__		) == ""

				try:
								circular_linked_list.delete_front()
								raise AssertionError  # This should not happen
				except IndexError:
								assert True  # This should happen

				try:
								circular_linked_list.delete_tail()
								raise AssertionError  # This should not happen
				except IndexError:
								assert True  # This should happen

				try:
								circular_linked_list.delete_nth(-1		)
								raise AssertionError
				except IndexError:
								assert True

				try:
								circular_linked_list.delete_nth(0		)
								raise AssertionError
				except IndexError:
								assert True

				assert circular_linked_list.is_empty() is True
				for i in range(5		):
								assert len(lowercase__		) == i
								circular_linked_list.insert_nth(lowercase__							,    i + 1		)
				assert str(lowercase__		) == "->".join(str(lowercase__		) for i in range(1							,    6		)		)

				circular_linked_list.insert_tail(6		)
				assert str(lowercase__		) == "->".join(str(lowercase__		) for i in range(1							,    7		)		)
				circular_linked_list.insert_head(0		)
				assert str(lowercase__		) == "->".join(str(lowercase__		) for i in range(0							,    7		)		)

				assert circular_linked_list.delete_front() == 0
				assert circular_linked_list.delete_tail() == 6
				assert str(lowercase__		) == "->".join(str(lowercase__		) for i in range(1							,    6		)		)
				assert circular_linked_list.delete_nth(2		) == 3

				circular_linked_list.insert_nth(2							,    3		)
				assert str(lowercase__		) == "->".join(str(lowercase__		) for i in range(1							,    6		)		)

				assert circular_linked_list.is_empty() is False


if __name__ == "__main__":
			import doctest

			doctest.testmod()