python3.8 use async getting invalid sysntax
python3.8 use async getting invalid sysntax
加载fever-drqa时报错：
File "/data/yangjun/fact/wikifact/scripts/search_module.py", line 2, in from drqa.retriever import DocDB, utils File "/data/yangjun/.conda/envs/tor18/lib/python3.8/site-packages/drqa/__init__.py", line 20, in from . import tokenizers
File "/data/yangjun/.conda/envs/tor18/lib/python3.8/site-packages/drqa/tokenizers/__init__.py", line 20, in
from .corenlp_tokenizer import CoreNLPTokenizer
File "/data/yangjun/.conda/envs/tor18/lib/python3.8/site-packages/drqa/tokenizers/corenlp_tokenizer.py", line 14, in
import pexpect
File "/data/yangjun/.conda/envs/tor18/lib/python3.8/site-packages/pexpect/__init__.py", line 75, in
from .pty_spawn import spawn, spawnu
File "/data/yangjun/.conda/envs/tor18/lib/python3.8/site-packages/pexpect/pty_spawn.py", line 14, in
from .spawnbase import SpawnBase
File "/data/yangjun/.conda/envs/tor18/lib/python3.8/site-packages/pexpect/spawnbase.py", line 224 def expect(self, pattern, timeout=-1, searchwindowsize=-1, async=False): ^
SyntaxError: invalid syntax
解决方案：
python -m pip install --upgrade pip
python -m pip install pexpect --upgrade