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# Freezing
## Android
pywebview is designed to be built with [buildozer](https://buildozer.readthedocs.io/en/latest/). You need to include following lines in your `buildozer.spec` to bundle pywebview correctly
``` ini
requirements = python3,kivy,pywebview
android.add_jars = <path_to_pywebview-android.jar>
```
`pywebview-android.jar` is shipped with `pywebview` and can be found under `site-packages/pywebview/lib`. To get its full path type
``` python
from webview import util
print(util.android_jar_path())
```
You can see a sample `bulldozer.spec` [here](https://github.com/r0x0r/pywebview/blob/a2b8d0449b206db75f9f364639b85db6eac7f07e/examples/todos/buildozer.spec)
## macOS
Use [py2app](https://py2app.readthedocs.io/en/latest/). For a reference setup.py for py2app, look [here](https://github.com/r0x0r/pywebview/blob/master/examples/py2app_setup.py).
## Windows / Linux
Use [pyinstaller](https://www.pyinstaller.org/). Pyinstaller picks all the dependencies found in `pywebview`, even if you don't use them. So for example if you have `PyQt` installed, but use `EdgeChromium` renderer on Windows, pyinstaller will bundle `PyQT` all the same. To prevent that you might want to add unwanted dependencies to `excludes` in your spec file.
Basic pyinstaller script to package an application which uses index.html as content
``` shell
pyinstaller main.py --add-data index.html:.
```
For one file build
``` shell
pyinstaller main.py --add-data index.html:. --onefile
```
>[!warning]
>In Linux if you get a `cannot find python3.xx.so error` you must add it to the pyinstaller binary list for the application to work (replace 'x' with python version)
>``` shell
>pyinstaller main.py --add-data index.html:. --add-binary /usr/lib/x86_64-linux-gnu/libpython3.x.so:. --onefile
>```
In case of using a Javascript library like vue or react you can build the project and use the build directory to the pyinstaller `--add-data`.
>[!warning]
>While using *vite* change the build directory to something else to not conflict with pyinstller's build directory which is also `./dist`
Here is a script to build a vue/react app with pyinstaller (assuming output is your new build directory)
``` shell
pyinstaller main.py --add-data output:.
```
Onefile
``` shell
pyinstaller main.py --add-data output:. --onefile
```
[nuitka](http://nuitka.net/) can be used for freezing as well. You may want to use `--nofollow-import-to` to exclude unwanted dependencies.
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