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 ddlmZ ddlmZ erddlmZ dd	lmZ dd
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Read SAS sas7bdat or xport files.
    )annotations)ABCabstractmethod)TYPE_CHECKINGoverload)doc)_shared_docs)stringify_path)Hashable)TracebackType)CompressionOptionsFilePath
ReadBufferSelf)	DataFramec                   @  sZ   e Zd ZdZeddddddZedd	d
dZdd	ddZdddddddZdS )
ReaderBasez>
    Protocol for XportReader and SAS7BDATReader classes.
    N
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__module____qualname____doc__r   r   r   r   r!   r   r   r   r   r   #   s   r   .)formatindexencoding	chunksizeiteratorcompressionzFilePath | ReadBuffer[bytes]z
str | NonezHashable | Noneintboolr   )filepath_or_bufferr&   r'   r(   r)   r*   r+   r   c                C  s   d S r   r   r.   r&   r'   r(   r)   r*   r+   r   r   r   read_sas<   s    r0   r   zDataFrame | ReaderBasec                C  s   d S r   r   r/   r   r   r   r0   J   s    decompression_optionsr.   )r1   NFZinferr   c                C  s   |du r\d}t | } t| ts&t||  }d|v r<d}n d|v rJd}ntdt| | dkrdd	lm}	 |	| ||||d
}
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}
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 |

 W  d   S 1 s0    Y  dS )aR  
    Read SAS files stored as either XPORT or SAS7BDAT format files.

    Parameters
    ----------
    filepath_or_buffer : str, path object, or file-like object
        String, path object (implementing ``os.PathLike[str]``), or file-like
        object implementing a binary ``read()`` function. The string could be a URL.
        Valid URL schemes include http, ftp, s3, and file. For file URLs, a host is
        expected. A local file could be:
        ``file://localhost/path/to/table.sas7bdat``.
    format : str {{'xport', 'sas7bdat'}} or None
        If None, file format is inferred from file extension. If 'xport' or
        'sas7bdat', uses the corresponding format.
    index : identifier of index column, defaults to None
        Identifier of column that should be used as index of the DataFrame.
    encoding : str, default is None
        Encoding for text data.  If None, text data are stored as raw bytes.
    chunksize : int
        Read file `chunksize` lines at a time, returns iterator.
    iterator : bool, defaults to False
        If True, returns an iterator for reading the file incrementally.
    {decompression_options}

    Returns
    -------
    DataFrame if iterator=False and chunksize=None, else SAS7BDATReader
    or XportReader

    Examples
    --------
    >>> df = pd.read_sas("sas_data.sas7bdat")  # doctest: +SKIP
    NzVIf this is a buffer object rather than a string name, you must specify a format stringz.xptZxportz	.sas7bdatZsas7bdatz2unable to infer format of SAS file from filename: r   )XportReader)r'   r(   r)   r+   )SAS7BDATReaderzunknown SAS format)r	   
isinstancestr
ValueErrorlowerreprZpandas.io.sas.sas_xportr2   Zpandas.io.sas.sas7bdatr3   r   )r.   r&   r'   r(   r)   r*   r+   Zbuffer_error_msgfnamer2   readerr3   r   r   r   r0   X   sJ    ,
)r%   
__future__r   abcr   r   typingr   r   Zpandas.util._decoratorsr   Zpandas.core.shared_docsr   Zpandas.io.commonr	   collections.abcr
   typesr   Zpandas._typingr   r   r   r   Zpandasr   r   r0   r   r   r   r   <module>   sH   ""