ó ;c›]c@`sdZddlmZmZmZddlmZddlZddlmZ ddl Z ddl Z ddl Z ddl mZmZddl mZmZmZd efd „ƒYZd efd „ƒYZdeed „Zed„Zddd„Zd„Zd„ZdS(s'Data downloading and reading functions i(tabsolute_importtprint_functiontdivision(tlogN(tpathi(t appdata_dirt resource_dirs(tStdoutProgressIndicatort string_typesturlopentInternetNotAllowedErrorcB`seZdZRS(sy Plugins that need resources can just use get_remote_file(), but should catch this error and silently ignore it. (t__name__t __module__t__doc__(((s4lib/python2.7/site-packages/imageio/core/fetching.pyR stNeedDownloadErrorcB`seZdZRS(s‹ Is raised when a remote file is requested that is not locally available, but which needs to be explicitly downloaded by the user. (R R R (((s4lib/python2.7/site-packages/imageio/core/fetching.pyRscC`sçd}||}tj|ƒ}|}|p4tdƒ}tƒ}|jd|ƒx|D]y} tj| |ƒ} tj| ƒrW|sı|rù|| krùtjj||ƒ} tj tj | ƒƒsåtj tj tj | ƒƒƒnt j| | ƒ| S| St|tƒrĞtj|dƒ} tjtj| ƒƒ} | | kr»|r·|| kr·tjj||ƒ} tj tj | ƒƒs£tj tj tj | ƒƒƒnt j| | ƒ| S| Std|ƒPqĞqWqWWtjddƒjƒdkrtd ƒ‚n|stƒ‚ntj||ƒ} tj tj | ƒƒs_tj tj tj | ƒƒƒntjd tƒrÒxotd ƒD]<}yt|| ƒ| SWq~tk r¹tjdƒq~Xq~Wt|| ƒ| Snt|| ƒ| SdS(s Get a the filename for the local version of a file from the web Parameters ---------- fname : str The relative filename on the remote data repository to download. These correspond to paths on ``https://github.com/imageio/imageio-binaries/``. directory : str | None The directory where the file will be cached if a download was required to obtain the file. By default, the appdata directory is used. This is also the first directory that is checked for a local version of the file. If the directory does not exist, it will be created. force_download : bool | str If True, the file will be downloaded even if a local copy exists (and this copy will be overwritten). Can also be a YYYY-MM-DD date to ensure a file is up-to-date (modified date of a file on disk, if present, is checked). auto : bool Whether to auto-download the file if its not present locally. Default True. If False and a download is needed, raises NeedDownloadError. Returns ------- fname : str The path to the file on the local system. s7https://github.com/imageio/imageio-binaries/raw/master/timageiois%Y-%m-%dsFile older than %s, updating...tIMAGEIO_NO_INTERNETtt1ttruetyesseWill not download resource from the internet because environment variable IMAGEIO_NO_INTERNET is set.tCONTINUOUS_INTEGRATIONigà?N(RRR(toptnormcaseRRtinserttjointisfiletosRtisdirtdirnametmakedirstabspathtshutiltcopyt isinstanceRttimetstrptimetgmtimetgetctimetprinttgetenvtlowerR RtFalsetranget _fetch_filetIOErrortsleep(tfnamet directorytforce_downloadtautot _url_rootturltnfnametgiven_directorytdirstdirtfilenamet filename2tntimetftimeti((s4lib/python2.7/site-packages/imageio/core/fetching.pytget_remote_file#sd   " "   "    c C`s“tdtjj|ƒƒ|d}d}d}g}xVtdƒD],}zıyÂt|ddƒ}t|jdj ƒƒ} t | ƒ} td|d || fƒt |d ƒ}t ||d |ƒ|j sÙ|jƒntj||ƒ|tkr tjjd |ƒnPWn4tk rD} |j| ƒtd t| ƒƒnXWd|dk rn|j sn|jƒqnnXqCWtdtjj|ƒƒ‚dS(sÛLoad requested file, downloading it if needed or requested Parameters ---------- url: string The url of file to be downloaded. file_name: string Name, along with the path, of where downloaded file will be saved. print_destination: bool, optional If true, destination of where file was saved will be printed after download finishes. resume: bool, optional If true, try to resume partially downloaded files. s?Imageio: %r was not found on your computer; downloading it now.s.partiittimeoutg@sContent-LengthsTry %i. Download from %s (%s)itwbt initial_sizesFile saved as %s. sError while fetching file: %s.NsjUnable to download %r. Perhaps there is a no internet connection? If there is, please report this problem.(R'RRtbasenametNoneR+R tinttheaderststript _sizeof_fmttopent _chunk_readtclosedtcloseR tmovetTruetsyststdouttwritet ExceptiontappendtstrR-( R4t file_nametprint_destinationttemp_file_namet local_fileRAterrorsttriest remote_filet file_sizetsize_strte((s4lib/python2.7/site-packages/imageio/core/fetching.pyR,†s>        i cC`sŸ|}t|jdjƒƒ}||7}tdƒ}|jdd|ƒxCtr|j|ƒ}|t|ƒ7}|szPnt|||ƒqKW|j dƒdS(söDownload a file chunk by chunk and show advancement Can also be used when resuming downloads over http. Parameters ---------- response: urllib.response.addinfourl Response to the download request in order to get file size. local_file: file Hard disk file where data should be written. chunk_size: integer, optional Size of downloaded chunks. Default: 8192 initial_size: int, optional If resuming, indicate the initial size of the file. sContent-Lengtht DownloadingRtbytestDoneN( RDRERFRtstartRMtreadtlent _chunk_writetfinish(tresponseRWt chunk_sizeRAt bytes_so_fart total_sizetprogresstchunk((s4lib/python2.7/site-packages/imageio/core/fetching.pyRIÁs   cC`s1|j|ƒ|jt|ƒƒtjdƒdS(s1Write a chunk to file and update the progress bariN(RPtincrease_progressRcR#R.(RkRWRj((s4lib/python2.7/site-packages/imageio/core/fetching.pyRdæs cC`sºddddddg}dddd d d g}|dkr¦ttt|d ƒƒt|ƒdƒ}t|ƒd |}||}||}d |}|j||ƒS|dkr¶d Sd S(s,Turn number of bytes into human-readable strR_tkBtMBtGBtTBtPBiiiis {0:.%sf} {1}s0 bytess1 byte(tminRDRRctfloattformat(tnumtunitstdecimalstexponenttquotienttunitt num_decimalst format_string((s4lib/python2.7/site-packages/imageio/core/fetching.pyRGís (   (R t __future__RRRtmathRRRRRNR R#RRRRRR R-R RRCR*RMR>R,RIRdRG(((s4lib/python2.7/site-packages/imageio/core/fetching.pyts     c ;%