ImportError: No module named

Question

I have a project which has a folder structure like so:

project:
    folder1:
        __init__.py
        file11.py
    folder2:
        __init__.py
        file21.py
    folder3:
        __init__.py
        file31.py
    __init__.py
    file1.py
    file2.py
    ..

From the root of the project, I am able to import the files on same path

Example,

In file1.py, from file2 import 123 and from folder3.file31 import 456 works

In file21.py, import file1 works

My issue is triggered when I do this:

Example,

In file21.py, from folder3.file31 import xyz

This is throwing an error like ImportError: No module named folder3

All my __init__.py files are empty and make python believe they are packages. I do not understand why this is happening. I would like to know a solution for this and also some little insights on how it works.

I am sure I tried some solutions from that post, with no luck. — Varun Verma, Aug 31 '16 at 08:01
Are you trying to run the code in file21.py directly, or is the error occurring when importing into a module in the parent directory? I'd suggest reading the python docs on package structure: https://docs.python.org/2.7/tutorial/modules.html#packages — chrxr, Aug 31 '16 at 08:24
@chrxr I will try relative import once more. Last i checked, it still threw that error. Will get back to you later — Varun Verma, Aug 31 '16 at 10:09

score 1 · Answer 1 · answered Aug 31 '16 at 08:02

1

Module file31.py is inside package project.folder3 and not inside just project, nor the same package as module file21.py. Try using in file21.py:

from folder3.file31 import xyz

Instead of

from file31 import xyz

answered Aug 31 '16 at 08:02

Hyster

646
5
15

score 1 · Answer 2 · answered Aug 31 '16 at 08:02

1

You should write

from folder3.file31 import xyz

answered Aug 31 '16 at 08:02

puf

359
3
13

ImportError: No module named

2 Answers2