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Is there a way to use Pyhton in websites?

I need to make a very specific program to calculate text RPG results based on user inputs, currently Im making it in Python because thats what I know to use, but we play in a website and most players dont have any program to use Python and some even play on their phones, is there any way to play it on a website?
I've looked for ways and most sources said I need to convert it to HTML or another language like C or C++, but I dont even know how to do this and the auto-converters I've tried didnt worked. Jupyter Notebook also wouldnt work because some of the players doesnt know how to use it and it would be too hard to teach them all.
Is there ANY way to keep it in Python and use it on a website?

You can use any python web framework and host it.
If you are a beginner, I recommend you to use Flask framework and try hosting it in https://www.pythonanywhere.com/

How to run python code directly on a webpage

My problem is as follows:
I have written a python code, and I need to run it on a web page.Basically I need that whatever is on the console should be displayed as it is.
I have no experience in web development and similar libraries, and I need to get this done in a short time. Kindly tell how should I proceed?
Note: I might be plotting some graphs also. It would be great if they could be displayed all at once(sequentially) on the website

https://brython.info/
https://skulpt.org/
https://pyodide.org/en/stable/
There are multiple python implementation on browser, some are webassemble some are javascript.
Is it a good idea to run python on browser as a replacement for javascript in 2022? No it is not, learn javascript. No in-browser python implementation can race with javascript as of today and most probably ever.

You Can't execute Python-Code directly inside a webbrowser - however, you could for instance create a basic IDE in HTML & JS, send code written by a user on the page to a Server, which would then run the code and send the results back to the client-page.
Unfortunately, such a project is quite ambitious and complicated, especially when Security & Stability are of mayor concern, as executing client-code is a very dangerous measure indeed, and requires expertise in Virtualization Techniques & Software.
Another Method could be to use a public API, which allows you to run Python code and fetch the results back. The procedure would be exactly the same as with the previous idea in terms of creating the web-client, but the heavy-lifting - which is actually executing the Python-code, would be taken care of for you.
As you can see, there is no concrete answer to this question, only suggestions.
A few useful links below:
https://docs.docker.com/
https://appdividend.com/2022/01/18/best-python-online-ide/
https://www.makeuseof.com/tag/programmer-browser-ides/
https://www.youtube.com/watch?v=og9Gaj1Hzag
How do I execute a string containing Python code in Python?

Is it possible to create a python program that controls my web pages?

I have been wondering about this since I could really benefit from a program that makes actions on websites that I use for my job that require the same command over and over again.
I know some python and I love to learn new things.
I tried looking for it on google but I guess I'm not sure how to find it.
I would love it if you could direct me to a guide or something like that.
Thank you very much!

Selenium interacts with a web browser directly, although you can hide the browser window in the code (look up Selenium in --headless mode). This is a good choice for filling out a lot of forms or interacting with graphical user interface elements.
However, if you need to request information from websites, you don't always need to interact with the web browser directly. You can use the package called Requests. This doesn't depend on any web browsers and can run silently in the background.

I think you can do it with Python and some packages like selenium. Also you need some html knowledge to search in the html source code of the specific wegpage.
I found an interesting use case, maybe that helps you:
https://towardsdatascience.com/controlling-the-web-with-python-6fceb22c5f08

How to: Python script that will 'click' on a portion of my screen, and then do key commands?

Python noobie.
I'm trying to make Python select a portion of my screen. In this case, it is a small window within a Firefox window -- it's Firebug source code. And then, once it has selected the right area, control-A to select all and then control-C to copy. If I could figure this out then I would just do the same thing and paste all of the copies into a .txt file.
I don't really know where to begin -- are there libraries for this kind of thing? Is it even possible?

I would look into PyQt or PySide which are Python wrapper on TOp of Qt.
Qt is a big monster but it's very well documented and i'm sure it will help you further in your project once you grabbed your screen section.

As you've mentioned in the comments, the data is all in the HTML to start (I'm guessing it's greyed out in your Firebug screenshot since it's a hidden element). This approach avoids the complexity of trying to automate a browser. Here's a rough outline of how I would get the data:
Download the HTML for the whole page - I'd do this manually at first (i.e. File > Save from a browser), and if there are a bunch of pages you want to process, figure out how to download all the pages you want later. If you want to use python for this part, I'd recommend urllib2. The URLs for each page are probably pretty structured, so you could easily store them in a list, and download each one and save it locally. .
Write a script to parse the HTML - don't use regex. Since you're using Python, use something like Beautiful Soup, which will create a nice object representation of the page, and then you can get the elements you want.
You mention you're new to python, so there's definitely going to be a learning curve around this, but this actually sounds like a pretty doable project to use to learn some more python.
If you run into specific obstacles with each step, start a new question with a bit of sample code, showing what you're trying to accomplish, and people will be more than willing to help out.

Dynamically decide which browser to use

I'm trying to find a way to dynamically decide which web browser will open the link I clicked.
There are a few sites that I visit that work best on Iexplore and others that I prefer to open with chrome. If I set my default browser to one of these, than I'll constantly find myself opening a site with one browser, than copying the url and opening it in a new one. This happens a lot when people send me links.
I've thought of making a python script as the default browser and making a function that decides which browser should open the page. I've tried setting the script as my default browser by changing some registry keys. It seemed to work but when I try to open a site (for example writing "http://stackoverflow.com" in the run window), the url doesn't show in sys.argv.
Is there another way of finding the arguments sent to the program?
The registry keys I changed are:
HKEY_CURRENT_USER\Software\Classes\http\shell\open\command
HKEY_CURRENT_USER\Software\Classes\https\shell\open\command
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\http\shell\open\command
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\https\shell\open\command
It seemed to work on windows XP but it doesn't work on 7 (the default browser is still the same...)

Have you considered using browsers extension that emulate IE rendering instead of a homegrown solution? I believe there is one called 'ie tab' for chrome/firefox. http://www.ietab.net/

You can try build something on top of existing software which automates browser-webpage interaction, have a look at Selenium, maybe you can tweak it somehow to suit your needs.
But beware, the problem you are trying to solve is fairly complex and complicated, for instance consider just this: how are you going to translate your own subjective experience of a website into code? There are some objective indices, some pages simply break, but many things, such as bad css styling are difficult to asses and quantify.
EDIT: here's a web testing framework in which you can generate your own tests in Python It's probably easier to start with then Selenium.