






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 		_a					(   a				:Dict				)							->    List[Any]:
 if _re_test_backend.search(a				) is None:
  return None
 a							=   [b[0] for b in _re_backend.findall(a				)]
 backends.sort()
 return "_and_".join(a				)
def 		_a					(   )							->    str:
 with open(os.path.join(a			,							'''__init__.py'''				)			,							'''r'''			,							encoding='''utf-8'''			,							newline='''\n'''				) as f:
  a							=   f.readlines()

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

 a							=   {}
 # 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.
  a							=   find_backend(lines[line_index]				)
  if backend is not None:
   while not lines[line_index].startswith('''    else:'''				):
    line_index += 1
   line_index += 1

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

   a							=   objects
  else:
   line_index += 1

 return backend_specific_objects
def 		_a					(   a				:List[Any]			,							a				:Any				)							->    List[Any]:
 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 		_a					(   a				:str=None				)							->    Tuple:
 if backend_specific_objects is None:
  a							=   read_init()
 # For special correspondence backend to module name as used in the function requires_modulename
 a							=   {}

 for backend, objects in backend_specific_objects.items():
  a							=   '''[''' + ''', '''.join(F"""\"{b}\"""" for b in backend.split('''_and_'''				)				) + ''']'''
  a							=   '''# 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]				)
  a							=   dummy_file

 return dummy_files
def 		_a					(   a				:str=False				)							->    Tuple:
 a							=   create_dummy_files()
 # For special correspondence backend to shortcut as used in utils/dummy_xxx_objects.py
 a							=   {'''torch''': '''pt'''}

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

 a							=   {}
 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:
    a							=   f.read()
  else:
   a							=   ''''''

 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 		_a					(   a				:int				)							->    int:
 if not isinstance(a			,							a				):
  raise TypeError('''recursive_lucas_number accepts only integer arguments.'''				)
 if n_th_number == 0:
  return 2
 if n_th_number == 1:
  return 1

 return recursive_lucas_number(n_th_number - 1				) + recursive_lucas_number(
     n_th_number - 2				)
def 		_a					(   a				:int				)							->    int:
 if not isinstance(a			,							a				):
  raise TypeError('''dynamic_lucas_number accepts only integer arguments.'''				)
 a						,  a							=   2, 1
 for _ in range(a				):
  a						,  a							=   b, a + b
 return a


if __name__ == "__main__":
     from doctest import testmod

     testmod()
     UpperCAmelCase__            =	int(input("Enter the number of terms in lucas series:\n").strip())
     print("Using recursive function to calculate lucas series:")
     print(" ".join(str(recursive_lucas_number(i)) for i in range(n)))
     print("\nUsing dynamic function to calculate lucas series:")
     print(" ".join(str(dynamic_lucas_number(i)) for i in range(n)))


