PyInstaller

PyInstaller bundles a Python application and all its dependencies into a single package. The user can run the packaged app without installing a Python interpreter or any modules. It is very useful to minimize dependencies.

What is it?

1. src: directory with a Python scripts that use the pandas library and that requires access to a CSV file. Note that the Python scripts dynamically load a module funcs that is not in the same directory as the script.
2. data.csv: CSV file that is used by the Python script in src.
3. requirements.txt: file listing the Python packages that are required by the Python script in src.
4. build_apps.sh: Bash script that creates a virtual environment, installs the required packages, and creates a standalone application using PyInstaller.
5. CMakeLists.txt: CMake file to build and install the applications.

How to create the applications?

By hand

1. Create a virtual environment and install the required packages:

   $ python -m venv build_venv
   $ source build_venv/bin/activate
   (venv)$ pip install -r requirements.txt

2. Create the application:

   (venv)$ pyinstaller \
             --onefile \
             --hidden-import funcs \
             --collect-submodules funcs \
             src/sum_columns.py
   (venv)$ pyinstaller \
             --onefile \
             --add-data data.csv:. \
             --hidden-import funcs \
             --collect-submodules funcs \
             src/prod_columns.py

Using CMake

$ cmake -B build -S .
$ cmake --build build