OpenNMT preprocess.py遇到错误:TypeError: reduce_ex() takes exactly one argument (0 given)
[2019-01-1017:07:12,320INFO]Building&savingtrainingdata...[2019-01-1017:07:12,320INFO]Readingsourceandtargetfiles:data/src-train.txtdata/tgt-train.txt.[2019-01-1017:07:12,484INFO]Buildingshard0.[2019-