Using python with HTML - python

I have written a python3 implementation of connect4. It features an AI that will play against you. It currently runs using the module pygame, which allows you to draw certain objects on a window.
I'd like to have this game work on a HTML canvas with JavaScript for drawing. Something akin to p5.js.
I'd rather not write the whole thing in JavaScript, since the python file runs perfectly (and I don't want to run all the code client-side for security reasons). Python also offers better functionality for this.
Is there an easy way to do this?

Stack Overflow really isn't designed for general "how do I do this" type questions. It's for more specific "I tried X, expected Y, but got Z instead" type question. But I'll try to help in a general sense.
Python can't run in a web browser. Web browsers can only run HTML and JavaScript. So if you want your program to work in a web browser, you have to use HTML and JavaScript.
You might be able to run your game on a server and then use something like a REST API to trigger the logic from the client, but honestly that's probably overkil. You're probably better off just rewriting your logic in JavaScript.
There are JavaScript implementation that take Python code and convert it into JavaScript commands. Googling "run python in web browser" returns a ton of results. In my experience, those are going to be pretty hit and miss though, and again, your best bet is to rewrite your game in JavaScript.
See also:
is it possible to run pygame or pyglet in a browser?
Any way to embed Pygame in webpages?
Please try to ask more specific questions in the fiture. If you're asking stuff like "How do I do that, and what are it's implications?" then that's a question for Google, not for Stack Overflow. Good luck.

Related

Best way to create a script to automate a simple process using selenium?

Ok, so I'm a total noob with aspirations of learning to code. I've read about a guy who, for example, wrote a script which, if he was at work past a certain time, would automatically send a text to his wife stating he would be late. I want to do something sorta similar.
What I want in essence is a script that will log in to a website at a certain time of day, check if a box/text is green/yes or red/no, and send a text or notification to my phone informing me of the result each day.
The progress I've made so far is installing Python, installing PyCharm and done some research about tools I could use toward achieving my goal. Selenium seems like it would be capable of logging into the website, but I've no idea how to go about setting up a conditional statement to check the result, nor how I could set it up to send a text/notification to my phone. Also, if there is a more appropriate tool I should look into rather than Selenium and Python, I'm not attached to the idea of using these specific tools.
Finally, I realize that this may end up being too complicated for a first project, so I'd be up for hiring a freelancer to set this up. Equally, if this is something that could feasibly be written by someone with very little knowledge of coding such as myself, I'd really appreciate some direction from an expert!
Thanks for any input!
You are on the right track with selenium for web form automation. Sending notification however would require something else as was pointed out, and if you're on windows you can use windows task scheduler to automate, to performed only on certain time of day etc.
To make things more simplified, you can also look up general purpose automation programs that might support all these features together. For example, JRVSInputs uses selenium for web auto-fills https://jrvs.in/forums/viewtopic.php?t=182 and have features to send email or windows notifications. It can convert all its scripts into a neat batch file, you can then automate this batch file in the task scheduler.

Automating DOSbox application

I have a very old DOS application which I would like to automate. Like there are keypresses and such which if automated will help a lot as I might have to run the program over a hundred times manually.
My question seems to be very similar to this one but the solutions offered there are not very useful for me, plus it is over nine years old
Automating old DOS application using Python
Only big difference between this question and mine is that I have no option other than DOSbox for doing this. This application is set up on a lot of computers, and all the people using the application know how to use DOSBox. Migrating to Virtualbox would be a pain and very time-consuming.
I was thinking maybe if I could mechanize this somehow in python using xautomaton or uinput, but I haven't been able to figure out exactly how. The application will be running on Ubuntu primarily.
To give an idea of the application, I am attaching a screenshot:
The solution does not necessarily need to be in python. Any other language would work. Any help is appreciated.
I figured this out. Although this does not use python, to do this, I just captured the windowid of DOSbox and sent all the key presses there using xdotool. Here is an example:
wid=$(xdotool search --class DOSbox)
xdotool key --window $wid m t 5 Return Return i
Which will type "mt5", then press enter twice and then type "i"
The series of keypresses can be stored in a string or a file and called iteratively each time this has to be run. If there is a better method to do this, please feel free to answer.

Python GUI without 'video system'

I'm currently at a crossroads. I'm somewhat versed in Python (2.7) and would really like to start getting into GUI to give my (although mini) projects some more depth and versibility.
For the most part, my scripts don't use anything graphical so this is the first time I'm dipping my toes in this water.
That said, I've tried using pygame and tkinter but seem to fail at every turn to get something up and running (although I had some slight success with pygame)
Am I correct to understand that for both I need X started in order to generate any type of interface, and with that, so I need X to get any type of input (touchscreen presses)?
Thanks in advance!
In order to use tkinter, you must have a graphics system running. For Windows and OSX that simply means you need to be logged in (ie: can't run as a service). For linux and other unix-like systems that means that you must have X running.
Neither tkinter nor any of the other common GUI toolkits will write directly to the screen.
I'm gonna give an alternative answer. If you know HTML, CSS and Javascript (or have time to give it a try) I would recommend using Flask, http://flask.pocoo.org/.
With flask you can create websites but you can also (as I am using it) let it be your GUI. It will work on any device and looks really good :).

How would one go about developing a curses-based UI?

I'm planning to develop a GUI application that uses curses. The idea is to provide an extra interface for a web interface, so that everything on the web site could also be done via the UI.
Basically, it should be platform independent: the user would have to SSH to the server after which the UI would automatically take over.
First of all, is this doable? As far as I understand, it would be platform independent as long as the end-user had the proper terminal software installed. Correct me, if I'm wrong.
I was planning to use Python for this, as it is the language I'm the most proficient in. Python comes with the ncurses library and Urwid, which I've been told, is quite good.
After having a quick test with Urwid, I had some problems. The thing is, I'm quite worried that I won't find answers to the problems that I will encounter down the road because apparently curses UI-s aren't all the rage nowadays. Documentation and examples are thus quite scarce.
In conclusion, should really I embark on this and quit my whining or drop the idea altogether? Any other suggestions?
It's certainly possible, and curses-based applications are still written regularly (e.g. PuDB is only 14 months old) although maybe not very often.
Did you try asking questions on the Urwid mailing list and/or IRC channel?
oh my, wouldn't this be a dream!
i've seen a couple of things out there to varying degrees of success.
Morticious Thrind: http://thrind.xamai.ca/
future death toll: http://f-dt.com/?wptheme=wp-cli
wordpress yadda yadda, this could be as simple as a 960/blueprint CSS, prototype.js, and a oneliner:
//TODO: Implement useful functionality && unit tests && documentation
//TODO: read
try { eval($F(x)); } catch (e) { panic(); }
BUT! this type of thing is pretty radical. i mean- ANYTHING can happen on the canvas of a web-browser these days, but any terminal emulator or lynx serves this purpose with flare.
also be sure to check out: https://stackoverflow.com/questions/472644/javascript-collection-of-one-line-useful-functions
the real question is what sort of software you plan on ncursing (sic,pun,etc.)-- it probably already has some rather useful command-line interfaces (sh).
It can be done but it's a struggle. I would recommend improving the web interface. You can use JavaScript to add keyboard shortcuts, for example, which can be very helpful for a faster workflow (see Gmail's interface, for example).

Can I use python to create flash like browser games?

is it possible to use python to create flash like browser games? (Actually I want to use it for an economic simulation, but it amounts to the same as a browser game)
Davoud
The answer would be yes, assuming you consider this a good example of what you want to do:
http://pyjs.org/examples/Space.html
This browser-based version of Asteroids was created using Pyjamas, which enables you to write the code in python in one place, and have it run either on the browser, or on the desktop:
http://pyjs.org/
Having recently found Pyjamas, and also preferring to consolidate my code in one language (Python!) and location (instead of having some code server-side, and some browser/client-side, in different languages), it's definitely an exciting technology. Its authors have ported the Google Web Toolkit to Python, a really impressive feat, retaining the expressive power of Python (something like 80,000 lines of Java was shrunk to 8,000 lines of Python). More Pythonistas should know about it. :)
You could use Python to do client side scripting using Silverlight + IronPython. Of course, this requires all your users install Silverlight.
I think you're talking about using Python on the back end, in which case running something on the server side with Python (in which case this Django vs other Python web frameworks SO question is a good general list and may have what you're looking for.
You need to use something that the current browsers support, this means you're stuck with Flash, Java applets or Javascript+HTML if you want your game displayed in a browser.
You can use python on the backend and display pure HTML, if that is enough for your needs.
Yes, but there a a number of ways to get there.
Flash is the client side rendering. You could use Python to generate Flash, or you could use Python to generate some dynamic HTML with Javascript, etc. that was interactive in a similar way.
But the Python will be running on the server. The Flash, ActionScript, HTML, JavaScript, etc. will all be running on the client.
So while the answer to the question is yes, I am going to suggest you might need to do more research and ask a better question.
You could have Python CGI code as a backend and send input in to it through AJAX. Its probably better just use something on the client side for this, though.

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