Current File : //proc/self/root/opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyc
�
Bu�_c @ sZ d Z d d g Z d d l m Z m Z d d l m Z d d l m Z d d l m
Z
m Z d d l m
Z
d d l m Z d d
l m Z m Z m Z d d l m Z d d l m Z e r!d d
l m Z m Z m Z m Z m Z m Z d d l m Z d d l m! Z! d d l" m# Z# n d e$ f d � � YZ% d � Z& d e' f d � � YZ( d S( s Lazy ZIP over HTTPt HTTPRangeRequestUnsupportedt dist_from_wheel_urli����( t bisect_leftt bisect_right( t contextmanager( t NamedTemporaryFile( t
BadZipfilet ZipFile( t CONTENT_CHUNK_SIZE( t range( t HEADERSt raise_for_statust response_chunks( t MYPY_CHECK_RUNNING( t$ pkg_resources_distribution_for_wheel( t Anyt Dictt Iteratort Listt Optionalt Tuple( t Distribution( t Response( t
PipSessionc B s e Z RS( ( t __name__t
__module__( ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyR s c C s; t | | � �& } t | � } t | | | j � SWd QXd S( s% Return a pkg_resources.Distribution from the given wheel URL.
This uses HTTP range requests to only fetch the potion of the wheel
containing metadata, just enough for the object to be constructed.
If such requests are not supported, HTTPRangeRequestUnsupported
is raised.
N( t LazyZipOverHTTPR R t name( R t urlt sessiont wheelt zip_file( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyR " s R c B s� e Z d Z e d � Z e d � � Z e d � � Z d � Z d � Z e d � � Z
d d � Z d � Z d
d � Z
d � Z d d
� Z d � Z d � Z d � Z e d � � Z d � Z e d � Z d � Z d � Z RS( s File-like object mapped to a ZIP file over HTTP.
This uses HTTP range requests to lazily fetch the file's content,
which is supposed to be fed to ZipFile. If such requests are not
supported by the server, raise HTTPRangeRequestUnsupported
during initialization.
c C s� | j | d t �} t | � | j d k s4 t � | | | | _ | _ | _ t | j d � | _
t � | _ | j
| j
� g | _ g | _ d | j j d d � k r� t d � � n | j � d S( Nt headersi� s Content-Lengtht bytess
Accept-Rangest nones range request is not supported( t headR
R t status_codet AssertionErrort _sessiont _urlt _chunk_sizet intR t _lengthR t _filet truncatet _leftt _rightt getR t
_check_zip( t selfR R t
chunk_sizeR# ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyt __init__= s
c C s d S( s! Opening mode, which is always rb.t rb( ( R1 ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyt modeL s c C s
| j j S( s Path to the underlying file.( R+ R ( R1 ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyR R s c C s t S( s9 Return whether random access is supported, which is True.( t True( R1 ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyt seekableX s c C s | j j � d S( s Close the file.N( R+ t close( R1 ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyR8 ] s c C s
| j j S( s Whether the file is closed.( R+ t closed( R1 ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyR9 b s i����c C s� t | | j � } | j � | j } } | d k r: | n t | | | � } t d | | � } | j | | d � | j j | � S( s� Read up to size bytes from the object and return them.
As a convenience, if size is unspecified or -1,
all bytes until EOF are returned. Fewer than
size bytes may be returned if EOF is reached.
i i ( t maxR( t tellR* t mint _downloadR+ t read( R1 t sizet
download_sizet startt lengtht stop( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyR> h s %c C s t S( s3 Return whether the file is readable, which is True.( R6 ( R1 ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyt readablew s i c C s | j j | | � S( s- Change stream position and return the new absolute position.
Seek to offset relative position indicated by whence:
* 0: Start of stream (the default). pos should be >= 0;
* 1: Current position - pos may be negative;
* 2: End of stream - pos usually negative.
( R+ t seek( R1 t offsett whence( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyRE | s c C s
| j j � S( s Return the current possition.( R+ R; ( R1 ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyR; � s c C s | j j | � S( s� Resize the stream to the given size in bytes.
If size is unspecified resize to the current position.
The current stream position isn't changed.
Return the new file size.
( R+ R, ( R1 R? ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyR, � s c C s t S( s
Return False.( t False( R1 ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyt writable� s c C s | j j � | S( N( R+ t __enter__( R1 ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyRJ � s
c G s | j j | � S( N( R+ t __exit__( R1 t exc( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyRK � s c c s* | j � } z d VWd | j | � Xd S( sy Return a context manager keeping the position.
At the end of the block, seek back to original position.
N( R; RE ( R1 t pos( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyt _stay� s c
C s} | j d } xi t t d | | j � � D]L } | j | | � | j � �( y t | � Wn t k
rm n XPWd QXq) Wd S( s1 Check and download until the file is a valid ZIP.i i N( R* t reversedR R( R= RN R R ( R1 t endRA ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyR0 � s
"
c C sK | j � } d j | | � | d <d | d <| j j | j d | d t �S( s: Return HTTP response to a range request from start to end.s bytes={}-{}t Ranges no-caches
Cache-ControlR t stream( t copyt formatR& R/ R' R6 ( R1 RA RP t base_headersR ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyt _stream_response� s
c
c s� | j | | !| j | | !} } t | g | d � } } t | g | d � } xE t | | � D]4 \ } } | | k r� | | d f Vn | d } qc W| | k r� | | f Vn | g | g | j | | +| j | | +d S( s/ Return an iterator of intervals to be fetched.
Args:
start (int): Start of needed interval
end (int): End of needed interval
left (int): Index of first overlapping downloaded data
right (int): Index after last overlapping downloaded data
i i����N( R- R. R< R: t zip(
R1 RA RP t leftt rightt lslicet rslicet it jt k( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyt _merge� s
! c C s� | j � �� t | j | � } t | j | � } x| | j | | | | � D]b \ } } | j | | � } | j � | j | � x* t | | j
� D] } | j j | � q� WqJ WWd QXd S( s- Download bytes from start to end inclusively.N(
RN R R. R R- R_ RV R RE R R( R+ t write( R1 RA RP RX RY t responset chunk( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyR= � s
%
N( R R t __doc__R R3 t propertyR5 R R7 R8 R9 R> RD RE R; t NoneR, RI RJ RK R RN R0 R
RV R_ R= ( ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyR 4 s(
N() Rc t __all__t bisectR R t
contextlibR t tempfileR t zipfileR R t pip._vendor.requests.modelsR t pip._vendor.six.movesR t pip._internal.network.utilsR
R R t pip._internal.utils.typingR
t pip._internal.utils.wheelR t typingR R R R R R t pip._vendor.pkg_resourcesR R t pip._internal.network.sessionR t ExceptionR R t objectR ( ( ( sQ /opt/alt/python36/lib/python3.6/site-packages/pip/_internal/network/lazy_wheel.pyt <module> s$ .
Mini Shell