How to import python class file from same directory?

Question

I have a directory in my Python 3.3 project called /models.

from my main.py I simply do a

from models import *

in my __init__.py:

__all__ = ["Engine","EngineModule","Finding","Mapping","Rule","RuleSet"]
from models.engine import Engine,EngineModule
from models.finding import Finding
from models.mapping import Mapping
from models.rule import Rule
from models.ruleset import RuleSet

This works great from my application.

I have a model that depends on another model, such that in my engine.py I need to import finding.py in engine.py. When I do: from finding import Finding

I get the error No Such Module exists.

How can I import class B from file A in the same module/directory?

@Yablargo Can you move your Edit 1 section and post as self-answer (from .finding import Finding)? — kenorb
– kenorb, Commented Jun 12, 2018 at 11:15

Syed Arefinul Haque · Accepted Answer · 2016-10-15 06:35:14Z

62

Since you are using Python 3, which disallows these relative imports (it can lead to confusion between modules of the same name in different packages).

Use either:

from models import finding

or

import models.finding

or, probably best:

from . import finding  # The . means "from the same directory as this module"

edited Oct 15, 2016 at 6:35

Syed Arefinul Haque

1,3334 gold badges18 silver badges42 bronze badges

answered Jan 15, 2014 at 14:01

RemcoGerlich

31.4k6 gold badges66 silver badges83 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Dolan Antenucci Over a year ago

I think that last one should be from . import finding (otherwise, SyntaxError is raised -- at least for me on python 3.5).

anwar Over a year ago

I suppose from . import finding is better because it doesn't hardcode the directory name, also any possible name class with another module is averted this way

Lazerbeak12345 Over a year ago

from .models import finding also should work (at least for Python 3.5)

Yablargo · Accepted Answer · 2020-12-16 21:18:05Z

3

Apparently I can do: from .finding import Finding and this works.

And the answer below reflects this as well so I guess this is reasonably correct.

I've fixed up my file naming and moved my tests to a different directory and I am running smoothly now. Thanks!

answered Dec 16, 2020 at 21:18

Yablargo

3,6077 gold badges41 silver badges60 bronze badges

1 Comment

Wassadamo Over a year ago

Doesn't work in Python 3.7

Collectives™ on Stack Overflow

How to import python class file from same directory?

2 Answers 2

3 Comments

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

3 Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related