Debugger cannot import custom packages from directory other than that of main file

[mlangiu]

It appears that python-debugger cannot be used to debug custom packages; steps to reproduce:

• Set up the following directory structure, e.g., in /tmp/example:

  ├── maindir
  │   └── main.py
  └── mypackage
      └── __init__.py

• contents of main.py

  import os
  print(os.listdir())
  import mypackage  # or similarly from . import mypackage

• contents of __init__.py

  print("This worked!")

• Open main.py in atom
• Launch a debugger with the following options:
  • Program: /tmp/example/maindir/main.py
  • Python Path: /usr/local/bin/python3
  • Cwd: /tmp/example
  • Automatically Stop after launch
• Hit F8 to start
• Now for some reason I need to type something into the debugger's console and execute it to get the debugger running this may be an issue of itself!
• executing the second line of main.py confirms that I am in /tmp/example/ yet executing the third one fails with

  Traceback (most recent call last):
  Python Debugger
  4:07:41 PM
  File "/tmp/example/maindir/main.py", line 3, in <module>
  Python Debugger
  4:07:41 PM
    import mypackage
  Python Debugger
  4:07:41 PM
  ModuleNotFoundError: No module named 'mypackage'

• when moving main.py to Cwx (/tmp/example) the import works!