def readline()

in awswrangler/s3/_fs.py [0:0]

• 16 lines of code
• 8 McCabe index (conditional complexity)

    def readline(self, length: int | None = -1) -> bytes:
        """Read until the next line terminator."""
        length = -1 if length is None else length
        end: int = self._loc + self._s3_block_size
        end = self._size if end > self._size else end
        self._fetch(self._loc, end)
        while True:
            found: int = self._cache[self._loc - self._start :].find(self._newline.encode(encoding=self._encoding))

            if 0 < length < found:
                return self.read(length + 1)
            if found >= 0:
                return self.read(found + 1)
            if self._end >= self._size:
                return self.read(-1)

            end = self._end + self._s3_half_block_size
            end = self._size if end > self._size else end
            self._fetch(self._loc, end)