ó šßÈ[c@s¨ddlZddlZddlmZddlmZddlmZddlm Z m Z ddl m Z d d l mZd d lmZd efd „ƒYZdS(iÿÿÿÿNi(t_Filei(tNonstandardExtHDU(tHDUList(tHeadert _pad_length(t fileobj_namei(t string_types(t lazypropertytFitsHDUcBs_eZdZdZed„ƒZeed„ƒZeed„ƒZ ed„ƒZ d„Z RS(sa A non-standard extension HDU for encapsulating entire FITS files within a single HDU of a container FITS file. These HDUs have an extension (that is an XTENSION keyword) of FITS. The FITS file contained in the HDU's data can be accessed by the `hdulist` attribute which returns the contained FITS file as an `HDUList` object. tFITScCs}|jj|jƒtjƒ}|j|jj|jƒƒ|jdƒ|jdrjt j d|ƒ}nt j |ddƒS(NitCOMPRESStfileobjtmodetreadonly( t_filetseekt _data_offsettiotBytesIOtwritetreadtsizet_headertgziptGzipFileRtfromfile(tselfR ((s>lib/python2.7/site-packages/astropy/io/fits/hdu/nonstandard.pythdulists   cCs|jtj|ƒd|ƒS(s" Like `FitsHDU.fromhdulist()`, but creates a FitsHDU from a file on disk. Parameters ---------- filename : str The path to the file to read into a FitsHDU compress : bool, optional Gzip compress the FITS file tcompress(t fromhdulistRR(tclstfilenameR((s>lib/python2.7/site-packages/astropy/io/fits/hdu/nonstandard.pyR*sc Cs•tjƒ}}|r[t|dƒr7t|jƒ}nd}tj|ddd|ƒ}n|j|ƒ|r{|j ƒnt |j ƒƒ|j j dƒ}|j|ƒ|jdƒd|jdfdddt|jƒƒdfddg}t|ƒd krZxUt|d ƒD]@\}} |jdt|d ƒ| jdj|d ƒfƒqWn|jd|dfƒt|ƒ} |jt|ƒd| ƒS(sõ Creates a new FitsHDU from a given HDUList object. Parameters ---------- hdulist : HDUList A valid Headerlet object. compress : bool, optional Gzip compress the FITS file RR twbR tasciiitXTENSIONsFITS extensiontBITPIXisarray data typetNAXISisnumber of array dimensionstNAXIS1s Axis lengthtPCOUNTsnumber of parameterstGCOUNTsnumber of groupstXINDsbyte offset of extension {}R sUses gzip compressiontheaderN(R#isarray data type(R$isnumber of array dimensions(R&isnumber of parameters(R'isnumber of groups(RRthasattrRRtNoneRRtwritetotcloseRttellt _padding_bytetencodeRRt _extensiontlentgetvaluet enumeratetappendtstrt_header_offsettformatRt_readfrom_internalR( RRRR tbstnametpaddingtcardstidxthduR)((s>lib/python2.7/site-packages/astropy/io/fits/hdu/nonstandard.pyR:s2   "    cCsT|jd}|jdkr tS|j}t|tƒrG|jƒ}n||jkS(NiR"(R=tkeywordtFalsetvaluet isinstanceRtrstripR1(RR)tcardtxtension((s>lib/python2.7/site-packages/astropy/io/fits/hdu/nonstandard.pyt match_headeros  cCs%|j|j|jjt|jƒfS(N(R;tvert __class__t__name__R2R(R((s>lib/python2.7/site-packages/astropy/io/fits/hdu/nonstandard.pyt_summary{s( RJt __module__t__doc__R1RRt classmethodRARRRGRK(((s>lib/python2.7/site-packages/astropy/io/fits/hdu/nonstandard.pyRs4 (RRtfileRtbaseRRRR)RRtutilRt extern.sixRtutilsRR(((s>lib/python2.7/site-packages/astropy/io/fits/hdu/nonstandard.pyts