B ‰°b¹ ã@sXdZddlZdd„Zdd„ZeƒZdd„Zd d „Zd d „Zed krTddl m Z e ƒdS)z3Functions to calculate assorted sequence checksums.éNcCs4y t|ƒ}Wntk r(| ¡}YnXt |¡S)zÅReturn the crc32 checksum for a sequence (string or Seq object). Note that the case is important: >>> crc32("ACGTACGTACGT") 20049947 >>> crc32("acgtACGTacgt") 1688586483 )ÚbytesÚ TypeErrorÚencodeÚbinasciiÚcrc32)ÚseqÚs©r ú4lib/python3.7/site-packages/Bio/SeqUtils/CheckSum.pyrs  rcCsrg}xhtdƒD]\}|}d}xDtdƒD]8}|d@}|dL}|d@rH|dO}|dL}|r$|dN}q$W| |¡qW|S)Nérééll0)ÚrangeÚappend)Ú_table_hÚiZpart_lZpart_hÚjZrflagr r r Ú _init_table_h%s rcCsbd}d}xL|D]D}|d@d>}|d?}|d?|B}|t|ƒAd@}|t|A}|}qWd||fS)zßReturn the crc64 checksum for a sequence (string or Seq object). Note that the case is important: >>> crc64("ACGTACGTACGT") 'CRC-C4FBB762C4A87EBD' >>> crc64("acgtACGTacgt") 'CRC-DA4509DC64A87EBD' réÿér z CRC-%08X%08X)Úordr)rZcrclZcrchÚcZshrZtemp1hZtemp1lÚidxr r r Úcrc64:s     rcCsFd}}x4|D],}|d7}||t| ¡ƒ7}|dkrd}qW|dS)aáReturn the GCG checksum (int) for a sequence (string or Seq object). Given a nucleotide or amino-acid sequence (or any string), returns the GCG checksum (int). Checksum used by GCG program. seq type = str. Based on BioPerl GCG_checksum. Adapted by Sebastian Bassi with the help of John Lenton, Pablo Ziliani, and Gabriel Genellina. All sequences are converted to uppercase. >>> gcg("ACGTACGTACGT") 5688 >>> gcg("acgtACGTacgt") 5688 rr é9i')rÚupper)rÚindexZchecksumÚcharr r r ÚgcgRs rcCstddl}ddl}| ¡}y t|ƒ}Wntk r@| ¡}YnX| | ¡¡| |  ¡¡}|  ¡  dd¡  d¡S)aReturn the SEGUID (string) for a sequence (string or Seq object). Given a nucleotide or amino-acid sequence (or any string), returns the SEGUID string (A SEquence Globally Unique IDentifier). seq type = str. Note that the case is not important: >>> seguid("ACGTACGTACGT") 'If6HIvcnRSQDVNiAoefAzySc6i4' >>> seguid("acgtACGTacgt") 'If6HIvcnRSQDVNiAoefAzySc6i4' For more information about SEGUID, see: http://bioinformatics.anl.gov/seguid/ https://doi.org/10.1002/pmic.200600032 rNÚ Úú=) ÚhashlibÚbase64Zsha1rrrÚupdaterZ encodebytesZdigestÚdecodeÚreplaceÚrstrip)rr"r#ÚmZtmpr r r Úseguidms r)Ú__main__)Ú run_doctest) Ú__doc__rrrrrrr)Ú__name__Z Bio._utilsr+r r r r Ús!