Build python project with custom packages using pyinstaller

Question

How to build a python project into a single executable if it has files split in multiple directories?

This is my project structure:

├── main.py
├── main.spec
├── src/
│   ├── GUI/
│   │   ├── RecipyApp.py
│   │   ├── __init__.py
│   ├── __init__.py
│   ├── constants.py
│   ├── exceptions/
│   │   ├── ConfigError.py
│   │   ├── KeywordsNotFound.py
│   │   ├── __init__.py
│   ├── recipies/
│   │   ├── __init__.py
│   │   ├── recipy.py
│   ├── system/
│   │   ├── BaseIndex.py
│   │   ├── InvertedIndex.py
│   │   ├── __init__.py
│   │   ├── config.py
│   │   ├── storage.py
├── tree.py

And when launching it in terminal it works perfectly. However, when building it with pyinstaller like that:

pyinstaller --onefile --windowed main.py

And launching gives an error:

Traceback (most recent call last):
  File "main.py", line 2, in <module>
ModuleNotFoundError: No module named 'src.GUI.RecipyApp'

Answer 1

In your code structure 'src.GUI.RecipyApp' where RecipyApp is inside src folder
when we run python interpreter it take modules from system path in this case its inside GUI folder not in system path
in your main.spec add pathex property like pathex = ['.', './src']

reference link : https://pyinstaller.org/en/stable/spec-files.html

alternate way you can try adding src to build path Reference Link: https://pyinstaller.org/en/stable/usage.html