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This function supports Basic authentication only.uproxy-authenticateu![ ]*([^ ]+)[ ]+realm="([^"]*)"ubasicu retry_proxy_u _basic_authN( RRRBR-R8RhRzR+R( RvR:RWR RRXR;RsR.R-RRRN((s>lib/python2.7/site-packages/future/backports/urllib/request.pyRHcs&    cC`st|\}}d||}|jd}t|\}} t| \} } | jdd} | | } |j| || \} } | p| sdSdt| ddt| dd| f} d| | |jd<|dkr|j|S|j||SdS(Nuhttp://uhttpu@iu%s:%s@%sRu(RR RRtget_user_passwdR+RR (RvR:RR;RjR{RRRRt proxyselectorRRR((s>lib/python2.7/site-packages/future/backports/urllib/request.pytretry_proxy_http_basic_auth|s      cC`st|\}}d||}|jd}t|\}} t| \} } | jdd} | | } |j| || \} } | p| sdSdt| ddt| dd| f} d| | |jd<|dkr|j|S|j||SdS(Nuhttps://uhttpsu@iu%s:%s@%sRu(RR RRR/R+RR (RvR:RR;RjR{RRRRR0RRR((s>lib/python2.7/site-packages/future/backports/urllib/request.pytretry_proxy_https_basic_auths      c C`st|\}}|jdd}||}|j|||\}}|pS|sZdSdt|ddt|dd|f}d||} |dkr|j| S|j| |SdS(Nu@iu%s:%s@%sRuuhttp://(RRR/R+RR ( RvR:RR;RjR{RRRR((s>lib/python2.7/site-packages/future/backports/urllib/request.pyR:s    c C`st|\}}|jdd}||}|j|||\}}|pS|sZdSdt|ddt|dd|f}d||} |dkr|j| S|j| |SdS(Nu@iu%s:%s@%sRuuhttps://(RRR/R+RR ( RvR:RR;RjR{RRRR((s>lib/python2.7/site-packages/future/backports/urllib/request.pytretry_https_basic_auths    icC`s|d|j}||jkrD|r6|j|=qD|j|Sn|j||\}}|sh|r~||f|j|lib/python2.7/site-packages/future/backports/urllib/request.pyR/s  cC`slddl}y@td||f}|jd|||f}||fSWntk rgtdSXdS(u#Override this in a GUI environment!iNuEnter username for %s at %s: u#Enter password for %s in %s at %s: (NN(tgetpassRtKeyboardInterrupttprintR+(RvRjRR5RR((s>lib/python2.7/site-packages/future/backports/urllib/request.pyR4s   N(RRRRyRR+RR,RRRR*RFRHR1R2R:R3R/R4(((s>lib/python2.7/site-packages/future/backports/urllib/request.pyR&s$              cC`s"tdkrtjdantS(u8Return the IP address of the magic hostname 'localhost'.u localhostN(t _localhostR+RR(((s>lib/python2.7/site-packages/future/backports/urllib/request.pyRs cC`sftdkrby#ttjtjdaWqbtjk r^ttjddaqbXntS(u,Return the IP addresses of the current host.iu localhostN(t _thishostR+RRRRR(((s>lib/python2.7/site-packages/future/backports/urllib/request.pyRs  # cC`s(tdkr$ddl}|jantS(u1Return the set of errors raised by the FTP class.iN(t _ftperrorsR+RR(R((s>lib/python2.7/site-packages/future/backports/urllib/request.pyRs   cC`s"tdkrtjdantS(u%Return an empty email Message object.uN(t _noheadersR+RR(((s>lib/python2.7/site-packages/future/backports/urllib/request.pyt noheaderss RcB`sSeZdZdedZdZdZdZdZ dZ dZ RS( u;Class used by open_ftp() for cache of open FTP connections.cC`sV||_||_||_||_||_||_d|_||_|jdS(Ni( RRRjR)RR<trefcountt keepalivetinit(RvRRRjR)RR<R((s>lib/python2.7/site-packages/future/backports/urllib/request.pyRy s        cC`sddl}d|_|j|_|jj|j|j|j|jj|j |j dj |j }|jj |dS(Niu/(RtbusytFTPtftptconnectRjR)R<tloginRRRRtcwd(RvRt_target((s>lib/python2.7/site-packages/future/backports/urllib/request.pyR? s  c C`s ddl}|j|dkr1d}d}nd|}d}y|jj|Wn.|jk r|j|jj|nXd}|r| ry&d|}|jj|\}}Wq|jk r}t |d d krt t d |qqXn|s|jjd|r|jj } zPy|jj |Wn5|jk r}t d |} || _| nXWd|jj | Xd |}nd }|jj|\}}nd|_t|jd |j} |jd7_|j| |fS(NiuduDuTYPE AiuTYPE uRETR iu550u ftp error: %ruLIST uLISTurb(uduD(Rt endtransferRBtvoidcmdRR?R+t ntransfercmdt error_permR RRtpwdREt __cause__R@R&tmakefilet file_closeR=R( RvRRzRtcmdtisdirRRRRKRtftpobj((s>lib/python2.7/site-packages/future/backports/urllib/request.pyR sP            cC`s d|_dS(Ni(R@(Rv((s>lib/python2.7/site-packages/future/backports/urllib/request.pyRGE scC`s)t|_|jdkr%|jndS(Ni(R*R>R=t real_close(Rv((s>lib/python2.7/site-packages/future/backports/urllib/request.pyRH s cC`sC|j|jd8_|jdkr?|j r?|jndS(Nii(RGR=R>RR(Rv((s>lib/python2.7/site-packages/future/backports/urllib/request.pyRNM s cC`s6|jy|jjWntk r1nXdS(N(RGRBRR(Rv((s>lib/python2.7/site-packages/future/backports/urllib/request.pyRRS s  N( RRRR+R7RyR?RRGRRNRR(((s>lib/python2.7/site-packages/future/backports/urllib/request.pyRs 0   cC`s]i}xPtjjD]?\}}|j}|r|ddkr|||d proxy server URL mappings. 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