"No module named" when importing from another package in python3.6

Question

If I execute demo2.py it works fine, the problem is when I execute main.py

|myPackage |subPackage demo.py demo2.py main.py

main.py

from ludikDriver.demo2 import demo2_print demo2_print()

demo2.py

from demo import demoprint def demo2_print(): print("demo2") demoprint() demo2_print()

demo.py

def demoprint(): print("demo")

Error:No module named 'demo'

Bierbarbar · Accepted Answer · 2018-07-02 20:50:55Z

1

Just use relative imports as suggested in pep 328.

from .demo import demoprint

You can do for the other package. Just as relative paths.

edited Jul 2, 2018 at 20:50

answered Jul 2, 2018 at 20:45

Bierbarbar

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2 Comments

andreas Viena Over a year ago

but if I do this I can´t execute demo2.py alone. It is posible?

Bierbarbar Over a year ago

No because you say to python you need to import the following task before run the code. There are some hacky ways to accomplish this, but i didn't would suggest this.

JBranham · Accepted Answer · 2018-07-02 20:54:38Z

Your modules need context of themselves. You should have the "__init__.py" file in subPackage and myPackage. Then your import should be relative:

from . import demo

OR more in context of your example:

from .demo import demoprint

Jordan Taulton · Accepted Answer · 2018-07-02 20:51:46Z

Your error is associated with the top line in demo.py:

from demo import demoprint

There is no module named demo

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