Python relative-import script two levels up

Question

I've been struggling with imports in my package for the last hour.

I've got a directory structure like so:

main_package
 |
 | __init__.py
 | folder_1
 |  | __init__.py
 |  | folder_2
 |  |  | __init__.py
 |  |  | script_a.py
 |  |  | script_b.py
 |
 | folder_3
 |  | __init__.py
 |  | script_c.py

I want to access code in script_b.py as well as code from script_c.py from script_a.py. How can I do this?

If I put a simple import script_b inside script_a.py, when I run

from main_package.folder_1.folder_2 import script_b

I am met with an

ImportError: no module named "script_b"

For accessing script_c.py, I have no clue. I wasn't able to find any information about accessing files two levels up, but I know I can import files one level up with

from .. import some_module

How can I access both these files from script_a.py?

Possible duplicate of How to accomplish this relative import in python — Ani Menon
– Ani Menon, Commented Apr 24, 2016 at 18:04

Community · Accepted Answer · 2017-05-23 12:34:35Z

90

To access script_c and script_b from script_a, you would use:

from ...folder_3 import script_c
from . import script_b

Or if you use python3, you can import script_b from script_a by just using:

import script_b

However, you should probably use absolute imports:

from mypackage.folder_3 import script_c
from mypackage.folder1.folder2 import script_b

Also see: Absolute vs Relative imports

edited May 23, 2017 at 12:34

CommunityBot

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answered Apr 24, 2016 at 18:02

tobspr

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6 Comments

Luke Taylor Over a year ago

What about accessing script_b?

mrgloom Over a year ago

What is ... mean?

Adam Erickson Over a year ago

@mrgloom It means move up two directories: current dir: . up one dir: .. up two dirs: ....

Aaron John Sabu Over a year ago

import ...utility_functions.plot_figures as plotfgs ^ SyntaxError: invalid syntax Python shows a syntax error for ...

Lei Over a year ago

It doesn't work for me: Having from ...folder_3 import script_c in script_a.py and running it python script_a.py gives me ImportError: attempted relative import with no known parent package. I'm using Python 3.7.

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