fairseq-preprocess reported an error that fairseq could not be found

[yi sun]

I followed the order on the official website and encountered an error that the package could not be found.  please what should i do

I have tried running on a new server, but  always get this error

code：

git clone https://github.com/pytorch/fairseq
cd fairseq
pip install --editable .

fairseq-preprocess --source-lang zh --target-lang en
--trainpref ~/data_prepare_wmt17/train
--validpref ~/data_prepare_wmt17/valid
--testpref ~/data_prepare_wmt17/test
--workers 1 --destdir ~/data-bin/wmt17_zh_en

error：

Traceback (most recent call last):
File "/usr/bin/fairseq-preprocess", line 33, in
sys.exit(load_entry_point('fairseq', 'console_scripts', 'fairseq-preprocess')())
File "/usr/bin/fairseq-preprocess", line 22, in importlib_load_entry_point
for entry_point in distribution(dist_name).entry_points
File "/usr/lib/python3.9/importlib/metadata.py", line 524, in distribution
return Distribution.from_name(distribution_name)
File "/usr/lib/python3.9/importlib/metadata.py", line 187, in from_name
raise PackageNotFoundError(name)
importlib.metadata.PackageNotFoundError: fairseq

environment：

fairseq Version: 0.102（lastest）

PyTorch Version：1.10

OS : Ubuntu 18.04.5

Python：3.9

Cuda:11.3

GPU:3090*1

[Martina Nacheva]

you need to set the path I think. 

something like 

export PYTHONPATH=$PYTHONPATH:/root/fairseq/