$94 GRAYBYTE WORDPRESS FILE MANAGER $29

3

�vh��@s�dd
lZdd
l
Z
dd
lZddlmZ
ddl
mZmZmZmZ
ddl	m
Z

dddd	gZGd
d�d�Zddd�
Z
ddd�
Zdd
d	�
Zdd�Ze�
d
S)�N)
�
StrictVersion)�
PKG_DIRECTORY�PY_COMPILED�	PY_SOURCE�	PY_FROZEN�
)
�Bytecode�Require�find_module�get_module_constant�extract_constantc@sHeZ
dZd
Zddd�
Zdd�Zdd	�Zddd�
Zdd
d�
Zddd�
Z	dS)r	z7A prerequisite to building or installing a distribution�NcCsF|dkr|dk	rt}|dk	r0||�
}|dkr0d
}|j
jt��

|`dS)N�__version__)r�__dict__�update�locals�self)r�name�requested_version�moduleZhomepage�	attribute�format�r�/usr/lib/python3.6/depends.py�__init__s




zRequire.__init__c

Cs |jd
k	rd|j
|jfS|j
S)z0Return full package/distribution name, w/versionNz%s-%s)rr)
rrrr�	full_name s


zRequire.full_namecCs*|jd
kp(|j
d
kp(t|
�
dko(|
|jkS)z%Is 'version' sufficiently up-to-date?N�unknown)rr�strr)r�versionrrr�
version_ok&s
zRequire.version_okrc
Cs||jd
krBy"t
|j|
�\}}}|r*|j�
|Stk
r@


d
SXt|j|j||
�}|d
k	rx||k	rx|jd
k	rx|j|�
S|S)a�
Get version number of installed module, 'None', or 'default'

        Search 'paths' for module.  If not found, return 'None'.  If found,
        return the extracted version attribute, or 'default' if no version
        attribute was specified, or the value cannot be determined without
        importing the module.  The version is formatted according to the
        requirement's version format (if any), unless it is 'None' or the
        supplied 'default'.
        N)rr
r�close�ImportErrorrr)r�paths�default�
f�
p�
i�
vrrr�get_version+s









zRequire.get_versioncCs|j|
�
d
k	S)z/Return true if dependency is present on 'paths'N)
r()rr"rrr�
is_presentFszRequire.is_presentcCs |j|
�
}|d
krdS|j
|�
S)z>Return true if dependency is present and up-to-date on 'paths'NF)r(r)rr"rrrr�
is_currentJs



zRequire.is_current)r
NN)Nr)
N)
N)
�__name__�
__module__�__qualname__�__doc__rrrr(r)r*rrrrr	s





c
Csl|jd
�
}x\|rf|j
d�
}tj||
�\}}\}}}}	|tkrP|pFdg
}|g
}
q|rtd||f�
�
qW|	S)z7Just like 'imp.find_module()', but with package support�
.r
rzCan't find %r in %s)�split�pop�impr
rr!)
rr"�parts�partr$�path�suffix�mode�kind�inforrrr
Rs







c
Cs�yt||�\}}\}}}Wnt
k
r.


d
SXz�|tkrP|jd�

tj|�
}	n`|tkrdtj|�
}	nL|t	kr~t
|j�|d�}	n2|tjkr�tj
||||||f�
ttj||
d
�SWd
|r�|j�
Xt|	|
|�S)z�Find 'module' by searching 'paths', and extract 'symbol'

    Return 'None' if 'module' does not exist on 'paths', or it does not define
    'symbol'.  If the module defines 'symbol' as a constant, return the
    constant.  Otherwise, return 'default'.N��exec)r
r!r�read�marshal�loadrr2�get_frozen_objectr�compile�sys�modules�load_module�getattrr r)
r�symbolr#r"r$r5r6r7r8�coderrrres$














cCs�|
|jkrd
St
|j�
j|
�
}d}d}d}|}xPt|�
D]D}|j}	|j}
|	|kr\|j|
}q8|
|krx|	|kst|	|krx|S|}q8Wd
S)aExtract the constant value of 'symbol' from 'code'

    If the name 'symbol' is bound to a constant value by the Python code
    object 'code', return that value.  If 'symbol' is bound to an expression,
    return 'default'.  Otherwise, return 'None'.

    Return value is based on the first assignment to 'symbol'.  'symbol' must
    be a global, or at least a non-"fast" local in the code block.  That is,
    only 'STORE_NAME' and 'STORE_GLOBAL' opcodes are checked, and 'symbol'
    must be present in 'code.co_names'.
    N�Z�a�d)�co_names�list�indexrZopcode�arg�	co_consts)rFrEr#Zname_idxZ
STORE_NAMEZSTORE_GLOBALZ
LOAD_CONST�constZ	byte_code�oprMrrrr�s







cCsDtj
jd
�
rtj
dkrdSd}x|D]}
t�|
=tj|
�

q&WdS)z�
    Patch the globals to remove the objects not available on some platforms.

    XXX it'd be better to test assertions about bytecode instead.
    �javaZcliNrr)rr)rA�platform�
startswith�globals�__all__�remove)Zincompatiblerrrr�_update_globals�s





rW)
N���)rXNrX)
rX)rAr2r=Zdistutils.versionrrrrrZ
py33compatrrUr	r
rrrWrrrr�<module>
s



C

"
$