





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  lowerCAmelCase__(		lowercase    :      str			)	->      List[str]:






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







def  lowerCAmelCase__(		)	->      Dict:






  with open(os.path.join(snake_case__				,       "__init__.py"			)				,       "r"				,       encoding="utf-8"				,       newline="\n"			) as f:
    __snake_case				:			Any            =    f.readlines()

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

  __snake_case				:			str            =    {}
  # Go through the end of the file
  while line_index < len(snake_case__			):
    # If the line is an if is_backend_available, we grab all objects associated.
    __snake_case				:			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

      __snake_case				:			Any            =    []
      # Until we unindent, add backend objects to the list
      while len(lines[line_index]			) <= 1 or lines[line_index].startswith(" " * 8			):
        __snake_case				:			List[Any]            =    lines[line_index]
        __snake_case				:			Dict            =    _re_single_line_import.search(snake_case__			)
        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

      __snake_case				:			str            =    objects
    else:
      line_index += 1

  return backend_specific_objects







def  lowerCAmelCase__(		lowercase    :      int				,       lowercase    :      Optional[Any]			)	->      Optional[int]:






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







def  lowerCAmelCase__(		lowercase    :      Union[str, Any]=None			)	->      Optional[int]:






  if backend_specific_objects is None:
    __snake_case				:			Optional[int]            =    read_init()
  # For special correspondence backend to module name as used in the function requires_modulename
  __snake_case				:			Optional[int]            =    {}

  for backend, objects in backend_specific_objects.items():
    __snake_case				:			Optional[int]            =    "[" + ", ".join(f"""\"{b}\"""" for b in backend.split("_and_"			)			) + "]"
    __snake_case				:			List[Any]            =    "# 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(snake_case__				,       snake_case__			) for o in objects]			)
    __snake_case				:			List[str]            =    dummy_file

  return dummy_files







def  lowerCAmelCase__(		lowercase    :      Union[str, Any]=False			)	->      int:
  __snake_case				:			Dict            =    create_dummy_files()
  # For special correspondence backend to shortcut as used in utils/dummy_xxx_objects.py
  __snake_case				:			Any            =    {"torch": "pt"}

  # Locate actual dummy modules and read their content.
  __snake_case				:			Optional[Any]            =    os.path.join(snake_case__				,       "utils"			)
  __snake_case				:			int            =    {
      backend: os.path.join(snake_case__				,       f"""dummy_{short_names.get(snake_case__				,       snake_case__			)}_objects.py"""			)
      for backend in dummy_files.keys()
  }

  __snake_case				:			List[str]            =    {}
  for backend, file_path in dummy_file_paths.items():
    if os.path.isfile(snake_case__			):
      with open(snake_case__				,       "r"				,       encoding="utf-8"				,       newline="\n"			) as f:
        __snake_case				:			List[str]            =    f.read()
    else:
      __snake_case				:			Optional[int]            =    ""

  for backend in dummy_files.keys():
    if dummy_files[backend] != actual_dummies[backend]:
      if overwrite:
        print(
            f"""Updating transformers.utils.dummy_{short_names.get(snake_case__				,       snake_case__			)}_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(snake_case__				,       snake_case__			)}_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)








import numpy as np
from cva import destroyAllWindows, imread, imshow, waitKey




class 			_lowerCamelCase	:



      """simple docstring"""






      def __init__(	self			,  UpperCAmelCase			,  UpperCAmelCase				)    ->				str:






        '''simple docstring'''






        __snake_case				:			int            =    0
        # max greyscale value for #FFFFFF
        __snake_case				:			int            =    int(self.get_greyscale(255			,  255			,  255				)				)

        if not self.min_threshold < threshold < self.max_threshold:
          __snake_case				:			Tuple            =    F"""Factor value should be from 0 to {self.max_threshold}"""
          raise ValueError(UpperCAmelCase				)

        __snake_case				:			List[Any]            =    input_img
        __snake_case				:			Any            =    threshold
        __snake_case      ,				__snake_case				:			str            =    self.input_img.shape[1], self.input_img.shape[0]

        # error table size (+4 columns and +1 row) greater than input image because of
        # lack of if statements
        __snake_case				:			Dict            =    [
            [0 for _ in range(self.height + 4				)] for __ in range(self.width + 1				)
        ]
        __snake_case				:			str            =    np.ones((self.width, self.height, 3)			,  np.uinta				) * 255







      @classmethod
      def   UpperCAmelCase						(	cls			,  UpperCAmelCase			,  UpperCAmelCase			,  UpperCAmelCase				)    ->				float:






        '''simple docstring'''






        return 0.114 * blue + 0.587 * green + 0.2_126 * red







      def   UpperCAmelCase						(	self				)    ->				None:






        '''simple docstring'''






        for y in range(self.height				):
          for x in range(self.width				):
            __snake_case				:			Optional[int]            =    int(self.get_greyscale(*self.input_img[y][x]				)				)
            if self.threshold > greyscale + self.error_table[y][x]:
              __snake_case				:			Any            =    (0, 0, 0)
              __snake_case				:			Optional[int]            =    greyscale + self.error_table[x][y]
            else:
              __snake_case				:			str            =    (255, 255, 255)
              __snake_case				:			Dict            =    greyscale + self.error_table[x][y] - 255
            self.error_table[y][x + 1] += int(8 / 32 * current_error				)
            self.error_table[y][x + 2] += int(4 / 32 * current_error				)
            self.error_table[y + 1][x] += int(8 / 32 * current_error				)
            self.error_table[y + 1][x + 1] += int(4 / 32 * current_error				)
            self.error_table[y + 1][x + 2] += int(2 / 32 * current_error				)
            self.error_table[y + 1][x - 1] += int(4 / 32 * current_error				)
            self.error_table[y + 1][x - 2] += int(2 / 32 * current_error				)


if __name__ == "__main__":
     # create Burke's instances with original images in greyscale
     _UpperCamelCase    =	[
         Burkes(imread('''image_data/lena.jpg''', 1), threshold)
         for threshold in (1, 126, 130, 140)
     ]

     for burkes in burkes_instances:
          burkes.process()

     for burkes in burkes_instances:
          imshow(
              F'''Original image with dithering threshold: {burkes.threshold}''',
              burkes.output_img,
          )

     waitKey(0)
     destroyAllWindows()

