B
    x\r                 @   s  d Z ddlmZmZmZ ddlZddlmZ ddlZddlm	Z	 ddl
ZddlmZ ddlmZmZ ddlmZ ddlmZmZ dd	lmZmZmZmZmZ dd
lmZmZm Z m!Z!m"Z"m#Z#m$Z$m%Z%m&Z&m'Z'm(Z(m)Z)m*Z*m+Z+m,Z,m-Z-m.Z.m/Z/ ddl0m1Z1 ddl2m3Z3m4Z4m5Z5 ddl6m7Z7m8Z8 ddl9m:Z: ddl;m<Z<m=Z=m>Z> ddl?m@Z@mAZA ddlBmCZCmDZD ddlEmFZFmGZHmIZJ yddlKZKdd ZLW n eMk
r   dd ZLY nX edeL_ yddlNZNdd ZOW n eMk
r   dd ZOY nX edeO_ daPdd ZQdIdd ZRd!eSd"ed#eSd"ed$eSd%d&eSd'ed(eSd'ed)eSd*d+eSd,d-d-iZTd.d/ ZUejVejVejWd0ZXeYed1rejZeXd2< d3d4 Z[d5d6 Z\dJd7d8Z]d9d: Z^d;d< Z_e^dd=dd>d>fd?d@Z`e_dddd=ddeFfdAdBZaG dCdD dDeHZGG dEdF dFeJZIG dGdH dHebZcdS )Ka  
Msgpack serializer support for reading and writing pandas data structures
to disk

portions of msgpack_numpy package, by Lev Givon were incorporated
into this module (and tests_packers.py)

License
=======

Copyright (c) 2013, Lev Givon.
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

* Redistributions of source code must retain the above copyright
  notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
  copyright notice, this list of conditions and the following
  disclaimer in the documentation and/or other materials provided
  with the distribution.
* Neither the name of Lev Givon nor the names of any
  contributors may be used to endorse or promote products derived
  from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    )datedatetime	timedeltaN)dedent)parse)uu_safe)PerformanceWarning)BadMovemove_into_mutable_buffer)is_categorical_dtypeis_datetime64tz_dtypeis_object_dtypeneeds_i8_conversionpandas_dtype)CategoricalCategoricalIndex	DataFrameDatetimeIndexFloat64IndexIndex
Int64IndexIntervalIntervalIndex
MultiIndexNaTPanelPeriodPeriodIndex
RangeIndexSeriesTimedeltaIndex	Timestamp)	internals)DatetimeArrayIntervalArrayPeriodArray)
BlockIndexIntIndex)NDFrame)BlockManager_safe_reshape
make_block)SparseDataFrameSparseSeries)_stringify_pathget_filepath_or_buffer)ExtTypePackerUnpackerc               C   s   d S )N r4   r4   r4   0lib/python3.7/site-packages/pandas/io/packers.py_check_zlibM   s    r6   c               C   s   t dd S )Nzzlib is not installed)ImportErrorr4   r4   r4   r5   r6   P   s    zv    Check if zlib is installed.

    Raises
    ------
    ImportError
        Raised when zlib is not installed.
    c               C   s   d S )Nr4   r4   r4   r4   r5   _check_blosca   s    r8   c               C   s   t dd S )Nzblosc is not installed)r7   r4   r4   r4   r5   r8   d   s    zx    Check if blosc is installed.

    Raises
    ------
    ImportError
        Raised when blosc is not installed.
    c          	      s    ddatrtta dd}|r.d}nd} fdd}t| } t| tjrtt| |}|| W dQ R X n(| dkrt }|| |	 S ||  dS )aF  
    msgpack (serialize) object to input file path

    THIS IS AN EXPERIMENTAL LIBRARY and the storage format
    may not be stable until a future release.

    Parameters
    ----------
    path_or_buf : string File path, buffer-like, or None
                  if None, return generated string
    args : an object or objects to serialize
    encoding : encoding for unicode objects
    append : boolean whether to append to an existing msgpack
             (default is False)
    compress : type of compressor (zlib or blosc), default to None (no
               compression)
    compressNappendza+bwbc                s$   x D ]}|  t|f qW d S )N)writepack)fha)argskwargsr4   r5   writer   s    
zto_msgpack.<locals>.writer)
pop
compressorr   r/   
isinstancecompatstring_typesopenBytesIOgetvalue)path_or_bufr@   rA   r:   moderB   r>   bufr4   )r@   rA   r5   
to_msgpackw   s"    rN   utf-8Fc          	      s  t \}}|rtS  fdd}ttjrytj}W n tt	fk
rf   d}Y nX |rt
d
}||S Q R X ttjrd}z,tjstd dkrt}||S W d|dk	r|  X ntdrtjr|S t	d	dS )
a  
    Load msgpack pandas object from the specified
    file path

    THIS IS AN EXPERIMENTAL LIBRARY and the storage format
    may not be stable until a future release.

    Parameters
    ----------
    path_or_buf : string File path, BytesIO like or string
    encoding : Encoding for decoding msgpack str type
    iterator : boolean, if True, return an iterator to the unpacker
               (default is False)

    Returns
    -------
    obj : same type as object stored in file
    c                sV   t t| fd i}t|dkr,|d S rRy  W n tk
rP   Y nX |S )Nencoding   r   )listunpacklencloseIOError)r>   Zunpacked_obj)rP   rA   rK   should_closer4   r5   read   s    zread_msgpack.<locals>.readFrbNr      rX   z7path_or_buf needs to be a string file path or file-like)r0   IteratorrE   rF   rG   ospathexists	TypeError
ValueErrorrH   Zbinary_typeZPY3ordrI   rU   hasattrcallablerX   )rK   rP   iteratorrA   _rX   r^   r>   r4   )rP   rA   rK   rW   r5   read_msgpack   s.    

rf      zM8[ns]zdatetime64[ns]zdatetime64[us]zM8[us]   zm8[ns]ztimedelta64[ns]ztimedelta64[us]zm8[us]   int64categoryc             C   s   | t krt |  S tj| | S )z1 return my dtype mapping, whether number or name )
dtype_dictnptypeDictget)tr4   r4   r5   	dtype_for   s    rq   )complexZ
complex128Z	complex64float128Z
complex256c             C   s&   t | }tj| || d||  S )zO
    Convert strings to complex number instance with specified numpy type.
    y              ?)c2f_dictrm   rn   )riZ
ctype_nameZftyper4   r4   r5   c2f  s    rw   c             C   s   | j }t| r| S t|r&|   S t|r8| d} |  }tdkrxt  |t	j
kr`| S | }tdt|S tdkrt  |t	j
kr| S | }tdtj||jdS td| S )z$ convert the numpy values to a list i8zlibr   blosc)Ztypesize)dtyper   r   Zraveltolistr   viewrD   r6   rm   Zobject_Ztostringr1   ry   r9   r8   rz   itemsize)valuesr{   vr4   r4   r5   convert  s*    


r   c          
   C   s  t | to| jdk}|r| j} t|r*| S t|r@tj| tdS t	|j
}|sX| d} |r|dkrrt  tj}n|dkrt  tj}ntdytjt|| |dS  tk
r } z&|jd } t| dkrtdt W d d }~X Y nX tj| |d}| }d	|j_|S )
Nr   )r{   latin1ry   rz   z)compress must be one of 'zlib' or 'blosc'rQ   zUcopying data after decompressing; this may mean that decompress is caching its resultT)rE   r1   codedatar   r   rm   Zarrayobjectr   baseencoder6   ry   
decompressr8   rz   r`   Z
frombuffer_move_into_mutable_buffer_BadMover@   rT   warningswarnr	   copyflagsZ	writeable)r   r{   r9   Z	as_is_extr   erM   r4   r4   r5   	unconvert5  s@    



r   c          
   C   s`  t | }t| trt| trXdt| jjt| ddt| ddt| ddt| dddS t| trdt| jjt| ddt	t| d	dt| j
jt| jtd
S t| trt| dd}|dk	rt|j}| d} dt| jjt| ddt| j
jt| jt	t| d	d|tdS t| ttfrtt| tr6d}nd}|t| jjt| ddt| ddt| ddt| dddS t| trdt| jjt| ddt| j
jt| jtdS dt| jjt| ddt| j
jt| jtdS nxt| trdt| jjt| dd| j| j| jtdS t| trtt| tr<tdn4dt| jjt| dd| jt| j
jt| jtdS nt|trt| t rtdn<| j!}|" s|# }d t| jj|j$d!d" |j%D d#S nt| t&t't(j)t*t(j+fs| t,krt| t-rJ| j.}|dk	r t|j}| j/}|dk	r:t|j0}d$| j1||d%S | t,kr\d&d'iS t| t(j+rzd(| 2d)d*S t| t*rd+| j3| j4| j5fd*S t| t(j)rd,tt6| d*S t| t&rd-t| 7 d*S t| t'rd.t| 7 d*S t8d/j9| d0nPt| t:r,d1| j;t	| j0d2S t| t<rLd3| j=| j>| j?d4S t| t@rvd5t| jj| jA| jB| jCd6S t| tDrd7t| jj| jE| jCd8S t| t(jFrd9| jG| jHt| j
jt| td:S t| t(jIr0t(J| rd;d<t| j
jt| jKL t| jML d=S d;t| j
jt| L d>S n,t| tNr\d<t| jKL t| jML d?S | S )@z
    Data encoder
    range_indexnameNZ_startZ_stopZ_step)typklassr   startstopstepperiod_indexfreqstr)r   r   r   freqr{   r   r9   tzUTCdatetime_index)r   r   r   r{   r   r   r   r9   interval_indexinterval_arrayleftrightclosed)r   r   r   r   r   r   multi_indexnames)r   r   r   r{   r   r9   index)r   r   r   r{   r   r9   rk   )r   r   r   codes
categoriesorderedr9   z(msgpack sparse series is not implementedseries)r   r   r   r   r{   r   r9   z'msgpack sparse frame is not implementedblock_managerc          	   S   s<   g | ]4}|j jt|j|jjt|jjt|jj	t
d qS ))locsr   shaper{   r   r9   )Zmgr_locsZas_arrayr   r   r   r   r{   r   	__class____name__rD   ).0br4   r4   r5   
<listcomp>  s   zencode.<locals>.<listcomp>)r   r   axesblocks	timestamp)r   valuer   r   r   nattimedelta64rx   )r   r   r   
datetime64r   r   z-cannot encode this datetimelike object: {obj})objperiod)r   ordinalr   interval)r   r   r   r   block_index)r   r   blocsblengthslength	int_index)r   r   indicesr   ndarray)r   r   ndimr{   r   r9   	np_scalar
np_complex)r   sub_typr{   realimag)r   r{   r   )r   r   r   )OtyperE   r   r   r   r   r   getattrr   r   r{   r   r   Zasi8rD   r   Zzone
tz_convertr   r%   r   r   r   r   r   r   r    r.   NotImplementedErrorr   
issubclassr)   r-   _dataZis_consolidatedZconsolidater   r   r   r   rm   r   r   r   r   r"   Ztzinfor   r   r   r}   ZdaysZsecondsZmicrosecondsstrZ	isoformat	Exceptionformatr   r   r   r   r   r   r'   r   r   r   r(   r   r   r   r   ZnumberZiscomplexobjr   __repr__r   rr   )r   Ztobjr   r   r   r   r4   r4   r5   r   o  s<   











































r   c          	      s  |  d}|dkr| S |dkrLd| kr.| d n| d }t| d | d |dS |d	krXtS |d
krtt| d | d dS |dkrt| d }t| d ||  d}t||| d dS |dkrt| d | d | d | d dS |dkr$t| d }t| d ||  d}dd |D }tj	|| d dS |dkrxt| d t
j|  d}t| d | d d}|dd}tt||f|S |dkrt| d t
j|  d}t| d | d d}t|f|}| d }|dk	r|d |}|S |d!krt | d"  j| d# | d$ | d% | d dS |d&krJt | d"  j}|| d' | d( | d) d*S |d+krlt| d# | d$ | d% S |d,krt| d }t|}	| d }
tt| d || d |
|	| d d-}|S |d.kr| d/   fd0d1fd2d| d3 D }t | d"  t| S |d4krt| d S |d5kr8t
t| d S |d6krRt| d  S |d7krht| d  S |d8krt
t| d S |d9krt | d"  | d: | d; | d< S |d=krt | d"  | d: | d> S |d?kr
t| d t
j | d  |  d!| d@ S |dAkr||  dBdCkr<t"| dD | dE | d S t| d }y|| d S  t#t$fk
rx   |%| d S X n@|dCkrt&| dD dF | dE  dG S t'| tt(t)fr| S | S dS )Hz5
    Decoder for deserializing numpy data types.
    r   Nr   r   offsetr   r   )r   r   r   r   r   )r   r   r   r{   r   r9   r   )r{   r   r   r   r   r   )r   r   c             S   s   g | ]}t |qS r4   )tuple)r   xr4   r4   r5   r   W  s    zdecode.<locals>.<listcomp>r   )r   r   )r   r   r   r   )r   r   r   r   r   r   rk   r   r   r   )r   r   r   r   r   )r   r{   r   r   r   c                s   t t| d t| d | d | d }d| kr8| d }n d | d }t| d rt|tjsntt	||j
dkst|j
t|| d d	}t|tt| d
 || d dS )Nr   r{   r9   r   r   r   itemszM8[ns])r{   r   )r   r   	placementr{   )r+   r   rq   Zget_indexerr   rE   rm   r   AssertionErrorr   r{   r$   r,   r   r#   )r   r   r   )r   r4   r5   create_block  s    
zdecode.<locals>.create_blockc                s   g | ]} |qS r4   r4   )r   r   )r   r4   r5   r     s    r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r   +j)*ro   r"   r   r   rq   r   r   r   r   Zfrom_tuplesrm   rj   dictrC   r   r&   r   Ztz_localizer   globalsZfrom_arrays
from_codesr   r   r    r*   r   r   r   r   r   intrn   Zreshaperw   r`   r_   r   rr   rE   rR   set)r   r   r   r{   r   dresultr   r   Zpd_dtyper   r   r4   )r   r   r5   decode:  s    






















r   strictrQ   c             C   s   t ||||||d| S )z5
    Pack an object and return the packed bytes.
    )defaultrP   unicode_errorsuse_single_float	autoresetuse_bin_type)r2   r=   )or   rP   r   r   r   r   r4   r4   r5   r=     s
    r=   c	       	      C   s   t | ||||||||d	S )zf
    Unpack a packed object, return an iterator
    Note: packed lists will be returned as tuples
    )object_hook	list_hookuse_listrP   r   object_pairs_hookmax_buffer_sizeext_hook)r3   )	Zpackedr   r   r   rP   r   r   r   r   r4   r4   r5   rS     s    	rS   c                   s*   e Zd Zedddddf fdd	Z  ZS )r2   zutf-8r   FrQ   c                s    t t| j||||||d d S )N)r   rP   r   r   r   r   )superr2   __init__)selfr   rP   r   r   r   r   )r   r4   r5   r     s    zPacker.__init__)r   
__module____qualname__r   r   __classcell__r4   r4   )r   r5   r2     s   r2   c            
       s2   e Zd Zdddedddddef
 fdd	Z  ZS )r3   Nr   Fzutf-8r   c                s(   t t| j|||||||||	|
d
 d S )N)
	file_like	read_sizer   r   r   r   rP   r   r   r   )r   r3   r   )r   r   r   r   r   r   r   rP   r   r   r   )r   r4   r5   r     s    zUnpacker.__init__)r   r   r   r   r1   r   r   r4   r4   )r   r5   r3     s   r3   c               @   s    e Zd ZdZdd Zdd ZdS )r[   zF manage the unpacking iteration,
        close the file on completion c             K   s   || _ || _d S )N)r]   rA   )r   r]   rA   r4   r4   r5   r     s    zIterator.__init__c             c   s   d}zt | jtjr`ytj| j}W n tk
r>   d}Y nX |rRt| jd}qt| j}n$t	| jdszt| j}n
d}| j}t
|}x|D ]
}|V  qW W d |r|  X d S )NTFrY   rX   )rE   r]   rF   rG   r\   r^   r_   rH   rI   rb   rS   rU   )r   Zneeds_closingZpath_existsr>   Zunpackerr   r4   r4   r5   __iter__  s&    

zIterator.__iter__N)r   r   r   __doc__r   r   r4   r4   r4   r5   r[     s   r[   )rO   F)N)dr   r   r   r   r\   textwrapr   r   Zdateutil.parserr   Znumpyrm   Zpandas.compatrF   r   r   Zpandas.errorsr	   Zpandas.util._mover
   r   r   r   Zpandas.core.dtypes.commonr   r   r   r   r   Zpandasr   r   r   r   r   r   r   r   r   r   r   r   r   r   r   r    r!   r"   Zpandas.corer#   Zpandas.core.arraysr$   r%   r&   Zpandas.core.arrays.sparser'   r(   Zpandas.core.genericr)   Zpandas.core.internalsr*   r+   r,   Zpandas.core.sparse.apir-   r.   Zpandas.io.commonr/   r0   Zpandas.io.msgpackr1   r2   Z_Packerr3   Z	_Unpackerry   r6   r7   rz   r8   rD   rN   rf   r{   rl   rq   Zfloat64Zfloat32rt   rb   rs   rw   r   r   r   r   r=   rS   r   r[   r4   r4   r4   r5   <module>'   s   P,
B




	)
: L 