Freezing

Android

pywebview is designed to be built with buildozer. You need to include following lines in your buildozer.spec to bundle pywebview correctly

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

from webview import util
print(util.android_jar_path())

You can see a sample bulldozer.spec here

macOS

Use py2app. For a reference setup.py for py2app, look here.

Windows / Linux

Use pyinstaller. 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

pyinstaller main.py --add-data index.html:.

For one file build

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)

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)

pyinstaller main.py --add-data output:.

Onefile

pyinstaller main.py --add-data output:. --onefile

nuitka can be used for freezing as well. You may want to use --nofollow-import-to to exclude unwanted dependencies.