# scikit-build-cpp-python



## Why and What

use scikit-build-core to setup a python-cmake project that can be installed with `pip install -e .`

## Conclusion

- package name has nothing to do with the import path. pacakge named my_package is installed with `pip install .`, uninstalled with `pip uninstall my_package`, but can be used as `import kk.ss as ks`.
- installation of cpp files: 
```cmake
install(TARGET mylib LIBRARY DESTINATION .)
```
and set
```
[tool.scikit-build]
wheel.install-dir = "kk/ss"
```
- installation of python files:
```
[tool.scikit-build.wheel.packages]
"mm/tt" = "python/myproj/simulation"

[tool.scikit-build]
wheel.exclude = ["CMakeLists.txt","*.cc","*.h"]
```


## special variable


- `${SKBUILD_PLATLIB_DIR}`: The original platlib directory. Anything here goes
  directly to site-packages when a wheel is installed.
- `${SKBUILD_DATA_DIR}`: The data directory. Anything here goes to the root of
  the environment when a wheel is installed (use with care).
- `${SKBUILD_HEADERS_DIR}`: The header directory. Anything in here gets
  installed to Python's header directory.
- `${SKBUILD_SCRIPTS_DIR}`: The scripts directory. Anything placed in here will
  go to `bin` (Unix) or `Scripts` (Windows).
- `${SKBUILD_METADATA_DIR}`: The dist-info directory. Licenses go in the
  `licenses` subdirectory. _Note that CMake is not run in the
  `prepare_metadata_\*` hooks, so anything written to this directory will only
  be present when writing wheels.\_
- `${SKBUILD_NULL_DIR}`: Anything installed here will not be placed in the
  wheel.

## style and lint check
### notebook otuput stripping
- use pre-commit
1. install
```bash
pip install pre-commit nbstripout
```
2. set
```yaml
repos:
  - repo: https://github.com/kynan/nbstripout
    rev: master  # Pin to a specific version if desired
    hooks:
      - id: nbstripout
        files: \.ipynb$
```
3. install  
```bash
pre-commit install
```

## vscode extensions to install
- "isort", which sort python import
```
Name: isort
Id: ms-python.isort
Description: Import organization support for Python files using isort.
Version: 2023.10.1
Publisher: Microsoft
VS Marketplace Link: https://marketplace.visualstudio.com/items?itemName=ms-python.isort
```
- "pylint", for complrehensive code analysis
```
Name: Pylint
Id: ms-python.pylint
Description: Linting support for Python files using Pylint.
Version: 2024.0.0
Publisher: Microsoft
VS Marketplace Link: https://marketplace.visualstudio.com/items?itemName=ms-python.pylint
```