我正在尝试创建一个简单的多级包:
test_levels.py
level1/
__init__.py (empty file)
level2/
__init__.py (only contents: __all__ = ["leaf"])
leaf.py
叶.py:
class Leaf(object):
print("read Leaf class")
pass
if __name__ == "__main__":
x = Leaf()
print("done")
test_levels.py:
from level1.level2 import *
x = Leaf()
直接运行 leaf.py 可以正常工作,但运行 test_levels.py 会返回下面的输出,而我原本期望没有输出:
read Leaf class
Traceback (most recent call last):
File "C:\Dev\intranet\test_levels.py", line 2, in <module>
x = Leaf()
NameError: name 'Leaf' is not defined
有人可以指出我做错了什么吗?