"""simple docstring"""
import importlib.metadata
import operator
import re
import sys
from typing import Optional

from packaging import version


SCREAMING_SNAKE_CASE__   :      Tuple							={
    '<': operator.lt,
    '<=': operator.le,
    '==': operator.eq,
    '!=': operator.ne,
    '>=': operator.ge,
    '>': operator.gt,
}



def 					UpperCamelCase					(       SCREAMING_SNAKE_CASE_						,	SCREAMING_SNAKE_CASE_						,	SCREAMING_SNAKE_CASE_						,	SCREAMING_SNAKE_CASE_						,	SCREAMING_SNAKE_CASE_						,	SCREAMING_SNAKE_CASE_ )      ->Union[str, Any]:
    if got_ver is None or want_ver is None:
        raise ValueError(
            F'''Unable to compare versions for {requirement}: need={want_ver} found={got_ver}. This is unusual. Consider'''
            F''' reinstalling {pkg}.''' )
    if not ops[op](version.parse(lowerCamelCase_ )						,	version.parse(lowerCamelCase_ ) ):
        raise ImportError(
            F'''{requirement} is required for a normal functioning of this module, but found {pkg}=={got_ver}.{hint}''' )



def 					UpperCamelCase					(       SCREAMING_SNAKE_CASE_						,	SCREAMING_SNAKE_CASE_ = None )      ->str:
    _lowerCamelCase	: Tuple       =       F'''\n{hint}''' if hint is not None else ''''''

    # non-versioned check
    if re.match(R'''^[\w_\-\d]+$'''						,	lowerCamelCase_ ):
        _lowerCamelCase,					_lowerCamelCase,					_lowerCamelCase	: Optional[Any]       =       requirement, None, None
    else:
        _lowerCamelCase	: Dict       =       re.findall(R'''^([^!=<>\s]+)([\s!=<>]{1,2}.+)'''						,	lowerCamelCase_ )
        if not match:
            raise ValueError(
                '''requirement needs to be in the pip package format, .e.g., package_a==1.23, or package_b>=1.23, but'''
                F''' got {requirement}''' )
        _lowerCamelCase,					_lowerCamelCase	: Optional[int]       =       match[0]
        _lowerCamelCase	: Union[str, Any]       =       want_full.split(''',''' )  # there could be multiple requirements
        _lowerCamelCase	: int       =       {}
        for w in want_range:
            _lowerCamelCase	: Optional[int]       =       re.findall(R'''^([\s!=<>]{1,2})(.+)'''						,	lowerCamelCase_ )
            if not match:
                raise ValueError(
                    '''requirement needs to be in the pip package format, .e.g., package_a==1.23, or package_b>=1.23,'''
                    F''' but got {requirement}''' )
            _lowerCamelCase,					_lowerCamelCase	: str       =       match[0]
            _lowerCamelCase	: List[Any]       =       want_ver
            if op not in ops:
                raise ValueError(F'''{requirement}: need one of {list(ops.keys() )}, but got {op}''' )

    # special case
    if pkg == "python":
        _lowerCamelCase	: Any       =       '''.'''.join([str(lowerCamelCase_ ) for x in sys.version_info[:3]] )
        for op, want_ver in wanted.items():
            _compare_versions(lowerCamelCase_						,	lowerCamelCase_						,	lowerCamelCase_						,	lowerCamelCase_						,	lowerCamelCase_						,	lowerCamelCase_ )
        return

    # check if any version is installed
    try:
        _lowerCamelCase	: List[str]       =       importlib.metadata.version(lowerCamelCase_ )
    except importlib.metadata.PackageNotFoundError:
        raise importlib.metadata.PackageNotFoundError(
            F'''The \'{requirement}\' distribution was not found and is required by this application. {hint}''' )

    # check that the right version is installed if version number or a range was provided
    if want_ver is not None:
        for op, want_ver in wanted.items():
            _compare_versions(lowerCamelCase_						,	lowerCamelCase_						,	lowerCamelCase_						,	lowerCamelCase_						,	lowerCamelCase_						,	lowerCamelCase_ )



def 					UpperCamelCase					(       SCREAMING_SNAKE_CASE_ )      ->str:
    _lowerCamelCase	: Any       =       '''Try: pip install transformers -U or pip install -e \'.[dev]\' if you\'re working with git main'''
    return require_version(lowerCamelCase_						,	lowerCamelCase_ )










def     a     (		lowerCamelCase_						,  lowerCamelCase_							):






				'''simple docstring'''
				lowercase__  					=     len(lowerCamelCase_							)
				lowercase__  					=     [[False] * (required_sum + 1) for _ in range(arr_len + 1							)]

				# for each arr value, a sum of zero(0) can be formed by not taking any element
				# hence True/1
				for i in range(arr_len + 1							):
								lowercase__  					=     True

				# sum is not zero and set is empty then false
				for i in range(1						,  required_sum + 1							):
								lowercase__  					=     False

				for i in range(1						,  arr_len + 1							):
								for j in range(1						,  required_sum + 1							):
												if arr[i - 1] > j:
																lowercase__  					=     subset[i - 1][j]
												if arr[i - 1] <= j:
																lowercase__  					=     subset[i - 1][j] or subset[i - 1][j - arr[i - 1]]

				return subset[arr_len][required_sum]


if __name__ == "__main__":
							import doctest

							doctest.testmod()




