

import sys
from dataclasses import dataclass
from typing import TYPE_CHECKING, Dict, List, Optional, Tuple, Union

import pandas as pd
import pyarrow as pa

import datasets
import datasets.config
from datasets.features.features import require_storage_cast
from datasets.table import table_cast


if TYPE_CHECKING:
       import sqlitea

       import sqlalchemy


A_						:     List[Any]			  =				datasets.utils.logging.get_logger(__name__)
@dataclass
class    A_				( datasets.BuilderConfig  ):


    '''simple docstring'''






    a__       							=    None
    a__       							=    None
    a__       							=    None
    a__       							=    True
    a__       							=    None
    a__       							=    None
    a__       							=    None
    a__       							=    1_00_00
    a__       							=    None


    def        lowerCAmelCase_  (self					)       -> Optional[Any]:


        if self.sql is None:
            raise ValueError('''sql must be specified'''					)
        if self.con is None:
            raise ValueError('''con must be specified'''					)


    def        lowerCAmelCase_  (self       , lowercase__       , lowercase__ = None       , )       -> str:
        __UpperCAmelCase			   =     config_kwargs.copy()
        # We need to stringify the Selectable object to make its hash deterministic

        # The process of stringifying is explained here: http://docs.sqlalchemy.org/en/latest/faq/sqlexpressions.html
        __UpperCAmelCase			   =     config_kwargs["sql"]
        if not isinstance(lowercase__       , lowercase__					):
            if datasets.config.SQLALCHEMY_AVAILABLE and "sqlalchemy" in sys.modules:
                import sqlalchemy

                if isinstance(lowercase__       , sqlalchemy.sql.Selectable					):
                    __UpperCAmelCase			   =     sqlalchemy.create_engine(config_kwargs['''con'''].split('''://'''					)[0] + '''://'''					)
                    __UpperCAmelCase			   =     str(sql.compile(dialect=engine.dialect					)					)
                    __UpperCAmelCase			   =     sql_str
                else:
                    raise TypeError(
                        F'''Supported types for \'sql\' are string and sqlalchemy.sql.Selectable but got {type(lowercase__					)}: {sql}'''					)
            else:
                raise TypeError(
                    F'''Supported types for \'sql\' are string and sqlalchemy.sql.Selectable but got {type(lowercase__					)}: {sql}'''					)
        __UpperCAmelCase			   =     config_kwargs["con"]
        if not isinstance(lowercase__       , lowercase__					):
            __UpperCAmelCase			   =     id(lowercase__					)
            logger.info(
                F'''SQL connection \'con\' of type {type(lowercase__					)} couldn\'t be hashed properly. To enable hashing, specify \'con\' as URI string instead.'''					)

        return super().create_config_id(lowercase__       , custom_features=lowercase__					)






    @property
    def        lowerCAmelCase_  (self					)       -> List[str]:
        __UpperCAmelCase			   =     {
            "index_col": self.index_col,
            "columns": self.columns,
            "params": self.params,
            "coerce_float": self.coerce_float,
            "parse_dates": self.parse_dates,
        }
        return pd_read_sql_kwargs






class    A_				( datasets.ArrowBasedBuilder  ):


    '''simple docstring'''






    a__       							=    SqlConfig


    def        lowerCAmelCase_  (self					)       -> Optional[int]:
        return datasets.DatasetInfo(features=self.config.features					)


    def        lowerCAmelCase_  (self       , lowercase__					)       -> List[Any]:
        return [datasets.SplitGenerator(name=datasets.Split.TRAIN       , gen_kwargs={}					)]


    def        lowerCAmelCase_  (self       , lowercase__					)       -> pa.Table:


        if self.config.features is not None:
            __UpperCAmelCase			   =     self.config.features.arrow_schema
            if all(not require_storage_cast(lowercase__					) for feature in self.config.features.values()					):
                # cheaper cast
                __UpperCAmelCase			   =     pa.Table.from_arrays([pa_table[field.name] for field in schema]       , schema=lowercase__					)
            else:
                # more expensive cast; allows str <-> int/float or str to Audio for example
                __UpperCAmelCase			   =     table_cast(lowercase__       , lowercase__					)
        return pa_table






    def        lowerCAmelCase_  (self					)       -> Optional[int]:
        __UpperCAmelCase			   =     self.config.chunksize
        __UpperCAmelCase			   =     pd.read_sql(
            self.config.sql       , self.config.con       , chunksize=lowercase__       , **self.config.pd_read_sql_kwargs					)
        __UpperCAmelCase			   =     [sql_reader] if chunksize is None else sql_reader
        for chunk_idx, df in enumerate(lowercase__					):
            __UpperCAmelCase			   =     pa.Table.from_pandas(lowercase__					)
            yield chunk_idx, self._cast_table(lowercase__					)








from __future__ import annotations


def  __a    (				SCREAMING_SNAKE_CASE ) ->       list[int]:






    '''simple docstring'''
    if not list_of_ints:
        return []

    if min(SCREAMING_SNAKE_CASE ) < 0:
        raise ValueError('''All numbers must be positive''' )

    __UpperCAmelCase			   =     max(len(bin(SCREAMING_SNAKE_CASE )[2:] ) for x in list_of_ints )
    return _msd_radix_sort(SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE )


def  __a    (				SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE ) ->       list[int]:






    '''simple docstring'''
    if bit_position == 0 or len(SCREAMING_SNAKE_CASE ) in [0, 1]:
        return list_of_ints

    __UpperCAmelCase			   =     []
    __UpperCAmelCase			   =     []
    # Split numbers based on bit at bit_position from the right
    for number in list_of_ints:
        if (number >> (bit_position - 1)) & 1:
            # number has a one at bit bit_position
            ones.append(SCREAMING_SNAKE_CASE )
        else:
            # number has a zero at bit bit_position
            zeros.append(SCREAMING_SNAKE_CASE )

    # recursively split both lists further
    __UpperCAmelCase			   =     _msd_radix_sort(SCREAMING_SNAKE_CASE    ,				bit_position - 1 )
    __UpperCAmelCase			   =     _msd_radix_sort(SCREAMING_SNAKE_CASE    ,				bit_position - 1 )

    # recombine lists
    __UpperCAmelCase			   =     zeros
    res.extend(SCREAMING_SNAKE_CASE )

    return res


def  __a    (				SCREAMING_SNAKE_CASE ) ->       Optional[int]:






    '''simple docstring'''
    __UpperCAmelCase			   =     len(SCREAMING_SNAKE_CASE )
    if not list_of_ints or length == 1:
        return

    if min(SCREAMING_SNAKE_CASE ) < 0:
        raise ValueError('''All numbers must be positive''' )

    __UpperCAmelCase			   =     max(len(bin(SCREAMING_SNAKE_CASE )[2:] ) for x in list_of_ints )
    _msd_radix_sort_inplace(SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE    ,				0    ,				SCREAMING_SNAKE_CASE )


def  __a    (				SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE ) ->       int:






    '''simple docstring'''
    if bit_position == 0 or end_index - begin_index <= 1:
        return

    bit_position -= 1

    __UpperCAmelCase			   =     begin_index
    __UpperCAmelCase			   =     end_index - 1
    while i <= j:
        __UpperCAmelCase			   =     False
        if not (list_of_ints[i] >> bit_position) & 1:
            # found zero at the beginning
            i += 1
            __UpperCAmelCase			   =     True
        if (list_of_ints[j] >> bit_position) & 1:
            # found one at the end
            j -= 1
            __UpperCAmelCase			   =     True

        if changed:
            continue

        __UpperCAmelCase   ,       __UpperCAmelCase			   =     list_of_ints[j], list_of_ints[i]
        j -= 1
        if j != i:
            i += 1

    _msd_radix_sort_inplace(SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE )
    _msd_radix_sort_inplace(SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE    ,				SCREAMING_SNAKE_CASE )


if __name__ == "__main__":
       import doctest

       doctest.testmod()




