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pgsql/pgAdmin 4/python/Lib/site-packages/PIL/TarIO.py
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AoAnima
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13 июл 2026, 17:47
13 июл 2026, 17:47
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# # The Python Imaging Library. # $Id$ # # read files from within a tar file # # History: # 95-06-18 fl Created # 96-05-28 fl Open files in binary mode # # Copyright (c) Secret Labs AB 1997. # Copyright (c) Fredrik Lundh 1995-96. # # See the README file for information on usage and redistribution. # from __future__ import annotations import io from . import ContainerIO class TarIO(ContainerIO.ContainerIO[bytes]): """A file object that provides read access to a given member of a TAR file.""" def __init__(self, tarfile: str, file: str) -> None: """ Create file object. :param tarfile: Name of TAR file. :param file: Name of member file. """ self.fh = open(tarfile, "rb") while True: s = self.fh.read(512) if len(s) != 512: self.fh.close() msg = "unexpected end of tar file" raise OSError(msg) name = s[:100].decode("utf-8") i = name.find("\0") if i == 0: self.fh.close() msg = "cannot find subfile" raise OSError(msg) if i > 0: name = name[:i] size = int(s[124:135], 8) if file == name: break self.fh.seek((size + 511) & (~511), io.SEEK_CUR) # Open region super().__init__(self.fh, self.fh.tell(), size)