parameters: (self)
docstring: Initialize for reading a gzip compressed fileobj.
docstring_summary: Initialize for reading a gzip compressed fileobj.
docstring_tokens: Initialize for reading a gzip compressed fileobj .
function: def _init_read_gz(self):
  
          """Initialize for reading a gzip compressed fileobj.
  
          """
  
          self.cmp = self.zlib.decompressobj(-self.zlib.MAX_WBITS)
  
          self.dbuf = b""
  
  
  
          # taken from gzip.GzipFile with some alterations
  
          if self.__read(2) != b"\037\213":
  
              raise ReadError("not a gzip file")
  
          if self.__read(1) != b"\010":
  
              raise CompressionError("unsupported compression method")
  
  
  
          flag = ord(self.__read(1))
  
          self.__read(6)
  
  
  
          if flag & 4:
  
              xlen = ord(self.__read(1)) + 256 * ord(self.__read(1))
  
              self.read(xlen)
  
          if flag & 8:
  
              while True:
  
                  s = self.__read(1)
  
                  if not s or s == NUL:
  
                      break
  
          if flag & 16:
  
              while True:
  
                  s = self.__read(1)
  
                  if not s or s == NUL:
  
                      break
  
          if flag & 2:
  
              self.__read(2)
function_tokens: def _init_read_gz ( self ) : self . cmp = self . zlib . decompressobj ( - self . zlib . MAX_WBITS ) self . dbuf = b"" # taken from gzip.GzipFile with some alterations if self . __read ( 2 ) != b"\037\213" : raise ReadError ( "not a gzip file" ) if self . __read ( 1 ) != b"\010" : raise CompressionError ( "unsupported compression method" ) flag = ord ( self . __read ( 1 ) ) self . __read ( 6 ) if flag & 4 : xlen = ord ( self . __read ( 1 ) ) + 256 * ord ( self . __read ( 1 ) ) self . read ( xlen ) if flag & 8 : while True : s = self . __read ( 1 ) if not s or s == NUL : break if flag & 16 : while True : s = self . __read ( 1 ) if not s or s == NUL : break if flag & 2 : self . __read ( 2 )