How to import partial attributes/variables without namespace of submodules in python?

Question

package tree

.
└── a
    ├── b
    │   ├── fun.py
    │   └── __init__.py
    └── __init__.py

content of a/__init__.py

from .b import  fun

content of a/b/__init__.py

from .fun import  fun

content of a/b/fun.py

def fun:
    print(111)

I just run ipython , and run

In [1]: import a                                                                                                                                                                                              

In [2]: dir(a)                                                                                                                                                                                                
Out[2]: 
['__builtins__',
 '__cached__',
 '__doc__',
 '__file__',
 '__loader__',
 '__name__',
 '__package__',
 '__path__',
 '__spec__',
 'b',
 'fun']

In [3]:     

issue

The issue is i don't want 'b' in a's dir. I expect the package just export 'fun'.

Answer 1

modify a/__init__.py as below:

from .b import  fun
del(b)