can I import two python classes like this?

Question

I have two the python classes. I wonder if I can do something like

file A

# file A.py
from B import B
class A(){
    def Foo():
        pass

}

file B

# file B.py
from A import A
class B(){
    def Bar():
        pass

}

Are you asking about how to get mutually recursive imports to work? Providing real code (i.e. not with braces) might help clarify. — Ry-, Nov 14 '17 at 07:12
"I wonder", did you actually try your code? Please try your code and provide errors if there are — dǝɥɔS ʇoıןןƎ, Nov 14 '17 at 07:14
Python doesn't forbid circular imports but it's best to avoid them. — PM 2Ring, Nov 14 '17 at 07:14
https://stackoverflow.com/questions/744373/circular-or-cyclic-imports-in-python — Thomas, Nov 14 '17 at 07:14

score 1 · Answer 1 · answered Nov 14 '17 at 07:14

Yes you can, however, you might be better advised to use different names for the files and the classes they contain.

Please note that the use of {} is not a python construct to mark scope boundaries

# file a.py
from b import B
class A()
    def Foo():
        pass

# file b.py
from a import A
class B()
    def Bar():
        pass

This type of circular import will work, but there are better ways, notably placing imports in an __init__.py file

score 0 · Answer 2 · answered Nov 14 '17 at 07:15

No, you can't. Cross reference can be achieve by local import. See below example

File A:

# file A.py
from B import B
class A():
    def Foo():
        pass

File B:

# file B.py
class B():
    def Bar():
        pass

def some_function():
    from A import A
    # use A here

2 Answers2