Question

3.4. 子目录调用上级目录

neo@MacBook-Pro-Neo ~/workspace/devops % find dir 
dir
dir/a.py
dir/subdir
dir/subdir/c.py
dir/subdir/b.py

neo@MacBook-Pro-Neo ~/workspace/devops % cat dir/subdir/c.py 
import b
b.sayhello()

import sys,os
path = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
# print(path)
sys.path.insert(0, path)
import a
a.say()

sys.path.append(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))))
from dir import a
a.say()		

neo@MacBook-Pro-Neo ~/workspace/devops % python3 dir/subdir/c.py 
helloworld!!!
hello
hello