In Java, we have classpath to look for the folder to find imported classes. How we do it in Python if the module we want to import is in a different folder?
What if "test.py" and "hello.py" in different folders?
Hello @janofass,
First of all, a warm welcome from all of us here. Happy to have you in the community. 
Now coming to your question, suppose you have a directory structure like this.
app/
|---__init__.py
|---sub1/
|------|__init__.py
|------|mod1.py
|------|sub2/
|---------|__init__.py
|---------|mod2.py
To import mod2.py in mod1.py, you do import sub2.mod2 in mod1.py file.
Similarly if you want to import mod2.py in __init__.py at the app directory, then you do, import sub1.sub2.mod2.py
Now if you want to import mod2.py in mod1.py then it is a bit complex than importing from a child directory. There is an extensive discussion on packages and imports in python, you can easily google one.
But a good workaround will be to append the parent directory in the sys.path list.
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