




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


UpperCAmelCase_						="""src/transformers"""


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



def       UpperCAmelCase       (     _snake_case							):
							if _re_test_backend.search(_snake_case							) is None:
														return None
							lowerCAmelCase   =		[b[0] for b in _re_backend.findall(_snake_case							)]
							backends.sort()
							return "_and_".join(_snake_case							)



def       UpperCAmelCase       (     _snake_case							):
							with open(_snake_case						, '''r'''						, encoding='''utf-8'''						, newline='''\n'''							) as f:
														lowerCAmelCase   =		f.readlines()

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

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

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

							lowerCAmelCase   =		{'''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.
														lowerCAmelCase   =		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:
																					lowerCAmelCase   =		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

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

																					lowerCAmelCase   =		objects
														else:
																					line_index += 1

    # At this stage we are in the TYPE_CHECKING part, first grab the objects without a specific backend
							lowerCAmelCase   =		[]
							while (
							    line_index < len(_snake_case							)
							    and find_backend(lines[line_index]							) is None
							    and not lines[line_index].startswith('''else'''							)
							):
														lowerCAmelCase   =		lines[line_index]
														lowerCAmelCase   =		_re_import.search(_snake_case							)
														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

							lowerCAmelCase   =		{'''none''': objects}
							# Let's continue with backend-specific objects
							while line_index < len(_snake_case							):
														# If the line is an if is_backend_available, we grab all objects associated.
														lowerCAmelCase   =		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:
																					lowerCAmelCase   =		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

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

																					lowerCAmelCase   =		objects
														else:
																					line_index += 1

							return import_dict_objects, type_hint_objects



def       UpperCAmelCase       (     _snake_case						, _snake_case							):

							def find_duplicates(_snake_case							):
														return [k for k, v in collections.Counter(_snake_case							).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!"]

							lowerCAmelCase   =		[]
							for key in import_dict_objects.keys():
														lowerCAmelCase   =		find_duplicates(import_dict_objects[key]							)
														if duplicate_imports:
																					errors.append(F"""Duplicate _import_structure definitions for: {duplicate_imports}"""							)
														lowerCAmelCase   =		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]							)							):
																					lowerCAmelCase   =		'''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       (     ):
							lowerCAmelCase   =		[]
							for root, _, files in os.walk(_snake_case							):
														if "__init__.py" in files:
																					lowerCAmelCase   =		os.path.join(_snake_case						, '''__init__.py'''							)
																					lowerCAmelCase   =		parse_init(_snake_case							)
																					if objects is not None:
																												lowerCAmelCase   =		analyze_results(*_snake_case							)
																												if len(_snake_case							) > 0:
																																			lowerCAmelCase   =		F"""Problem in {fname}, both halves do not define the same objects.\n{errors[0]}"""
																																			failures.append('''\n'''.join(_snake_case							)							)
							if len(_snake_case							) > 0:
														raise ValueError('''\n\n'''.join(_snake_case							)							)



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


UpperCAmelCase_						=[
    """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.
							lowerCAmelCase   =		importlib.util.spec_from_file_location(
							    '''transformers'''						, os.path.join(_snake_case						, '''__init__.py'''							)						, submodule_search_locations=[PATH_TO_TRANSFORMERS]						, )
							lowerCAmelCase   =		spec.loader.load_module()

							lowerCAmelCase   =		[
							    module
							    for module in get_transformers_submodules()
							    if module not in IGNORE_SUBMODULES and module not in transformers._import_structure.keys()
							]
							if len(_snake_case							) > 0:
														lowerCAmelCase   =		'''\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()









def       UpperCAmelCase       (     _snake_case						, _snake_case						, _snake_case							):

							def count_of_possible_combinations(_snake_case							) -> int:
														if target < 0:
																					return 0
														if target == 0:
																					return 1
														return sum(count_of_possible_combinations(target - item							) for item in array							)

							return count_of_possible_combinations(_snake_case							)



def       UpperCAmelCase       (     _snake_case						, _snake_case						, _snake_case							):

							def count_of_possible_combinations_with_dp_array(
							    _snake_case						, _snake_case							) -> int:
														if target < 0:
																					return 0
														if target == 0:
																					return 1
														if dp_array[target] != -1:
																					return dp_array[target]
														lowerCAmelCase   =		sum(
														    count_of_possible_combinations_with_dp_array(target - item						, _snake_case							)
														    for item in array							)
														lowerCAmelCase   =		answer
														return answer

							lowerCAmelCase   =		[-1] * (target + 1)
							return count_of_possible_combinations_with_dp_array(_snake_case						, _snake_case							)



def       UpperCAmelCase       (     _snake_case						, _snake_case						, _snake_case							):
							lowerCAmelCase   =		[0] * (target + 1)
							lowerCAmelCase   =		1

							for i in range(1						, target + 1							):
														for j in range(_snake_case							):
																					if i - array[j] >= 0:
																												dp_array[i] += dp_array[i - array[j]]

							return dp_array[target]


if __name__ == "__main__":
		import doctest

		doctest.testmod()
		UpperCAmelCase_						=3
		UpperCAmelCase_						=5
		UpperCAmelCase_						=[1, 2, 5]
		print(combination_sum_iv(n, array, target))



