how to create a phone app using python code example

Example 1: build a python app

pyinstaller needed
pip install pyinstaller

on windows cmd write:
pyinstaller.exe --onefile --debug=all --windowed --name=myApp --icon=img/app.ico --paths venv/path/site-package app.py

--onefile	include all in one file, optional
--debug		debug at app s launch, NOT use --windowed
--windowed	for gui applications, optional
--name		app name, optional
--icon		app s icon, optional
app.py		main file of the project

Example 2: real python kivy

$ pip install buildozer

Example 3: python app development

Tkinter is Best but If You Want You Can Use Tkinter, Kivy, PyQt5.
If For Game Development Then Pygame