Develop Reference

How to compile a python script into executable program and can be use by others

My python script is finished and working and I want to compile and have other users enjoy/benefit from it. The users don't need to install Pycharm or Visual Studio Code, something like an executable file or run in a command prompt then execute on their local machine or is there a way to convert it on a Tampermonkey Script?
How do I achieve this? Thank you very much in advance!
Googled and Youtubed but it's not what I'm looking for.

This question is probably answered multiple times, but the PyInstaller module is a great way to generate an executable that will run on Windows, and an app that will run on macOS.
Check out PyInstaller on PyPI.org: https://pypi.org/project/pyinstaller/
Project description
PyPI PyPI - Python Version Read the Docs (version) PyPI - Downloads
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.
Documentation:
https://pyinstaller.org/
Code:
https://github.com/pyinstaller/pyinstaller
PyInstaller reads a Python script written by you. It analyzes your code to discover every other module and library your script needs in order to execute. Then it collects copies of all those files – including the active Python interpreter! – and puts them with your script in a single folder, or optionally in a single executable file.
PyInstaller is tested against Windows, macOS, and GNU/Linux. However, it is not a cross-compiler: to make a Windows app you run PyInstaller in Windows; to make a GNU/Linux app you run it in GNU/Linux, etc. PyInstaller has been used successfully with AIX, Solaris, FreeBSD and OpenBSD, but is not tested against them as part of the continuous integration tests.
Main Advantages
Works out-of-the-box with any Python version 3.7-3.11.
Fully multi-platform, and uses the OS support to load the dynamic libraries, thus ensuring full compatibility.
Correctly bundles the major Python packages such as numpy, PyQt5, PySide2, PyQt6, PySide6, wxPython, matplotlib and others out-of-the-box.
Compatible with many 3rd-party packages out-of-the-box. (All the required tricks to make external packages work are already integrated.)
Works with code signing on macOS.
Bundles MS Visual C++ DLLs on Windows.
Installation
PyInstaller is available on PyPI. You can install it through pip:
pip install pyinstaller
Requirements and Tested Platforms
Python:
3.7-3.11. Note that Python 3.10.0 contains a bug making it unsupportable by PyInstaller. PyInstaller will also not work with beta releases of Python 3.12.
tinyaes 1.0+ (only if using bytecode encryption). Instead of installing tinyaes, pip install pyinstaller[encryption] instead.
Windows (32bit/64bit):
PyInstaller should work on Windows 7 or newer, but we only officially support Windows 8+.
Support for Python installed from the Windows store without using virtual environments requires PyInstaller 4.4 or later.
Note that Windows on arm64 is not yet supported. If you have such a device and want to help us add arm64 support then please let us know on our issue tracker.
Linux:
GNU libc based distributions on architectures x86_64, aarch64, i686, ppc64le, s390x.
musl libc based distributions on architectures x86_64, aarch64.
ldd: Console application to print the shared libraries required by each program or shared library. This typically can be found in the distribution-package glibc or libc-bin.
objdump: Console application to display information from object files. This typically can be found in the distribution-package binutils.
objcopy: Console application to copy and translate object files. This typically can be found in the distribution-package binutils, too.
Raspberry Pi users on armv5-armv7 should add piwheels as an extra index url then pip install pyinstaller as usual.
macOS (x86_64 or arm64):
macOS 10.15 (Catalina) or newer.
Supports building universal2 applications provided that your installation of Python and all your dependencies are also compiled universal2.
Usage
Basic usage is very simple, just run it against your main script:
pyinstaller /path/to/yourscript.py
For more details, see the manual.
Untested Platforms
The following platforms have been contributed and any feedback or enhancements on these are welcome.
FreeBSD
ldd
Solaris
ldd
objdump
AIX
AIX 6.1 or newer. PyInstaller will not work with statically linked Python libraries.
ldd
Linux on any other libc implementation/architecture combination not listed above.
Before using any contributed platform, you need to build the PyInstaller bootloader. This will happen automatically when you pip install pyinstaller provided that you have an appropriate C compiler (typically either gcc or clang) and zlib’s development headers already installed.
Support
Official debugging guide: https://pyinstaller.org/en/v5.6.2/when-things-go-wrong.html
Assorted user contributed help topics: https://github.com/pyinstaller/pyinstaller/wiki
Web based Q&A forums: https://github.com/pyinstaller/pyinstaller/discussions
Email based Q&A forums: https://groups.google.com/g/pyinstaller
Changes in this Release
You can find a detailed list of changes in this release in the Changelog section of the manual.

Can someone help in compile a GTK/PyGObject All-in-one for Python 3.7?

We used to distribute (for Windows) a very large Python 2/PyGTK application by packaging Python installer itself along other needed installers and packages through an InnoSetup script. Among with those other installers and packages we deliver an all-in-one PyGTK package and it worked very well.
Now we've converted our software for Python 3 and GTK 3. Ok, there is an all-in-one for PyGI [1] (PyGObject Introspection), but just for Python 2.7 to 3.4 and we need at least Python 3.7.
I've spent last couple of weeks learning MSYS2 and trying to understand how MyPaint or Gaphor (which are similar apps) are distributed for Windows without success. I am able to download and install GTK and PyGI using pacman on MSYS2/MingW64 but I cannot figure out how can I create such a package like PyGI all-in-one. I asked for help or instructions on SourceForge but I got no responses so far.
I am asking for help or any clues on how can I generate a PyGI-all-in-one-like installer. Thanks in advance!
[1] https://sourceforge.net/projects/pygobjectwin32/

You can bundle a PyGObject app in Windows using PyInstaller. It can be used with either MSYS2 or gvsbuild to find and bundle all the GTK libraries you need. Then you can use your InnoSetup script to create an installer.

How download and install a setup file automatically via python

I wrote a program in python 3.6.2 .
I converted .py to a setup file.
I want in python program or want to write a function which downloads the newer version of program and installs it automatically and removes Old version.
I searched it in internet but not found a good solution.
Is there anyone who can help me with this?

Have you looked at Setuptools?
From their website:
"Automatically find/download/install/upgrade dependencies at build time using the EasyInstall tool, which supports downloading via HTTP, FTP, Subversion, and SourceForge, and automatically scans web pages linked from PyPI to find download links. (It’s the closest thing to CPAN currently available for Python.)"
http://setuptools.readthedocs.io/en/latest/setuptools.html

install python.exe using a flash drive

I have just acquired a stand alone PC running XP, and I do not want to connect to the internet. I am running python 2.7 on my laptop and was wondering if there was a way to install the python.exe file to a flash drive so I can install python 2.7 on the stand alone. The download from the python.org website goes straight to the path in my c drive, and will not let me save it to the flash drive. I have tried installing from active state, and I am unable to use this as it is not win32. Any help will be much appreciated.

You can download python's zip file then unzip it onto your flash drive, here's the link for the latest release of python 3.6.1 with win32 including all the components that python is required to run as well as the python.exe that you wanted:
https://www.python.org/ftp/python/3.6.1/python-3.6.1-embed-win32.zip
Here's the link to the downloads page, if you wanted another version of python, look for Download Windows x86 embeddable zip file.

If you want a clean, standard CPython installation without bells and whistles on your offline Windows XP machine, you can use your flash drive to transport a Python 2.7 installer from python.org to your Windows XP machine's local hard drive, and then run the installer from there. It could be somewhere between inconvenient and difficult to install third-party packages (as you would find on PyPI) without the full benefit of pip. (Depending on the specific packages you want, you may be able to transport installers or wheels and still use pip in offline mode, without automatic dependency installation.)
If you want a full-featured but potentially big "portable" installation that you can just plop into any directory and use from there, you can try an old version of Portable Python (the project is defunct but the download page is still up as of this writing) or WinPython (note that this answer suggests sticking with 2.7.9 or earlier).

Public python program as one file with all modules included

I am new in Python, and I wonder if I can release my program in some kind of compiled build project with all modules and librarys included, so I can run it on diffrent systems? I don't want to install opencv on every pc.

You can specify a requirements.txt file which lists the dependencies used by your program. Python pip can read this file to bundle and package your application. See the docs here: https://pip.pypa.io/en/stable/user_guide/#requirements-files.
Also, I believe that OpenCV requires some native extensions installed which are not packaged with Python. Unfortunately, you'll need to install native extensions on each new machine you use.