recipe-576642.py 文件源码

def sync(self):
        'Write dict to disk'
        if self.flag == 'r':
            return
        filename = self.filename
        tempname = filename + '.tmp'
        fileobj = open(tempname, 'wb' if self.format=='pickle' else 'w')
        try:
            self.dump(fileobj)
        except Exception:
            os.remove(tempname)
            raise
        finally:
            fileobj.close()
        shutil.move(tempname, self.filename)    # atomic commit
        if self.mode is not None:
            os.chmod(self.filename, self.mode)