VS Code：相对导入（linting）

Question

I have a multi-directory project. I use absolute imports for each directory. For example,

main_dir
|
| - sub_dir1
      |
      | - a.py (has say class A)
| - sub_dir2
      |
      | - b.py (imports class A. Syntax:  from subdir1.a import A)

When I run it in the terminal, from main_dir, it works fine. However, this import gives me an "unresolved import 'differential_diagnosis.src.algorithm'Python(unresolved-import)" in VS code. I do not know how to fix this.

The biggest challenge I face because of this is that I cannot use the peek feature to look at what the member functions of class A do.

I have raised a similar ticket on GitHub Project .

Answer 1

You should place some code of what you are trying to do. What I can say is that Python looks for modules in the import search path. First it looks for built-in modules, Python looks in the sys.path variable which is initialized by the directory of the original script + PATH shell variable + some installation dependent default.

See: https://docs.python.org/3/tutorial/modules.html

To guarantee that your imports can be found, you can do:

sys.path.append(pathname_to_module)

just before you import a module.

Answer 2

Try to add these codes in your python file:

import sys
print(sys.path)

The interpreter only can search these paths to find modules. Python will only automatically add the folder which contains the current python file to sys.path .

'The path of 'sub_dir1' should not be found in sys.path . You need to add these settings in launch.json file:

"env": {
            "PYTHONPATH": "${workspaceFolder}"
        },

Then your workspace path will be added to sys.path .

If main_dir is the workspace folder, then you can change from subdir1.a import A to from main_dir.subdir1.a import A .

If not, it should be changed to from {workspaceName}.{folder}....main_dir.subdir1 import A , and you should add a __init__.py file in every folder to change the folder to a python package.