Method read

sphinx/directives/code.py:242–259

(self, location: tuple[str, int] | None = None)

            raise UnicodeError(msg) from exc

    def read(self, location: tuple[str, int] | None = None) -> tuple[str, int]:
        if 'diff' in self.options:
            lines = self.show_diff()
        else:
            filters = [
                self.pyobject_filter,
                self.start_filter,
                self.end_filter,
                self.lines_filter,
                self.dedent_filter,
                self.prepend_filter,
                self.append_filter,
            ]
            lines = self.read_file(self.filename, location=location)
            for func in filters:
                lines = func(lines, location=location)

        return ''.join(lines), len(lines)

    def show_diff(self, location: tuple[str, int] | None = None) -> list[str]:
        new_lines = self.read_file(self.filename)