exception log
except Exception as e:
l = [str(i) for i in [dbid, f_mp3, e]]
log_s = '||'.join(l)
logging.exception(log_s)
print(log_s)
except Exception as e:
l = [str(i) for i in [dbid, f_mp3, e]]
log_s = '||'.join(l)
logging.exception(log_s)
print(log_s)