Traceback (most recent call last):
File "abcd.py", line 26, in <module>
from asd import *
File "/home/pi/2.27/ywkj/asd.py", line 6, in <module>
import asyncio
File "/usr/lib/python3.5/asyncio/__init__.py", line 49, in <module>
from .unix_events import * # pragma: no cover
File "/usr/lib/python3.5/asyncio/unix_events.py", line 21, in <module>
from . import selector_events
File "<frozen importlib._bootstrap>", line 969, in _find_and_load
File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 669, in exec_module
File "<frozen importlib._bootstrap_external>", line 773, in get_code
File "<frozen importlib._bootstrap_external>", line 484, in _compile_bytecode
ValueError: bad marshal data (invalid reference)
解决：
删除对应报错文件的pyc文件（/usr/lib/python3.5/asyncio/__pycache__/selector_events.cpython-35.pyc）
