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I need to develop a code that causes a currently open application (running in the background) to perform basic tasks when a certain condition is met.
Let me explain through a random example…
Imagine I am working on a Microsoft word document and I want it to print exactly every 10 minutes automatically, i.e. without having to physically click the print button. What options do I have to implement something like this? Obviously gaining access to the MS word source code is an option, but is their an easier way…perhaps using a python script?
Thanks,
David
Microsoft Office products, as well as Internet Explorer and some other programs expose a Component Object Model (COM) interface. You can find more detail about COM and how it applies to Python here (including examples). They often expose every action you could do manually in the applications, but are aimed at automation and artificial input.
For a more generic application, you could work with sending messages. There's a Windows function called 'postmessage', and another called 'sendmessage' which have several wrappers in Python.
By the way, the MS Word source code is not freely available.
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I made a small script that solves an combinatorial optimization problem and I would like put it in a website so users can "play" with it, they could send a list of "points" to the server and this script would use a database to return the best combination of these "points".
The problem is I do not have much experience in web dev. I searched how to make an html button execute an script and I found this thread: https://stackoverflow.com/questions/48552343/how-can-i-execute-a-python-script-from-an-html-button#:~:text=To%20run%2C%20open%20command%20prompt,Hope%20this%20helpful.
But there says that an html button calling an python script is not safe. So what would be ideal What would be an ideal, safe alternative so that I could make sure that anyone who accesses my website can execute this script safely?
Well, there's no "easy" answer to your question. What you'd really need to do is to create a web-site in Python on your host computer – using a tool such as Django – and have one of the URLs supported by that website call your script.
Honestly, "what you're asking for here, really isn't the sort of question that StackOverflow is intended to answer." It's too big. Another one of the SE-family sites might be more appropriate, although I'm not quite sure which one ...
The solution that comes to mind would be setting up some Python-API (e.g. with Flask) which you could call with HTTP via JS, having different routes for different usages.
Here's a short overview of Flask showcasing how it could be used.
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I am developing a paid program in Python with Tkinter. How can I make the program user-specific. I don't want people sharing their license. If there is no better option than serial keys. What is the best way of doing this? Doesn't have to be top of the line security. Just don't want people to share their license..
You could embed the machine ID and user ID in your code to check at startup.
import getpass
userID = getpass.getuser()
import socket
machineID = socket.gethostname()
Also see (not verified but here it goes): Getting computer hardware information
Also at the Windows command prompt, you can use systeminfo which will give you the whole computer information. From Python you can run os.system('systeminfo > lolo.txt') which will display and pipe to the text file.
I was looking a the same problem you have. Hope it helps
If you want to use python to write code, but keep embedded secrets, your best bet will be to compile to binary and ship only binary to users. PyInstaller is a good place to start your research. There are several alternatives to PyInstaller.
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Is there a way to run my python script using several computers communicating through my web server? Willing to do a lot more research if someone can point me in the right direction, but I can't seem to find any useful info on this.
A simple script can't be automatically distributed, you need to break it into components that can run independently when given a part of the problem. These components run based on commands received from a library like PyMPI, or pull them from a queuing system like http://aws.amazon.com/sqs/
This also means you can't rely on having shared local memory. Any data that needs to be exchanged must be exchanged as part of the command, stored on a shared file system or placed in a database AWS Dynamo, Redis, ect.
There are a large number of links to more resources available at https://wiki.python.org/moin/ParallelProcessing under the Cluster Computing heading.
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I searched a lot, but couldn't find any precise answer to my question. I would like to programmatically be able to simulate user interactions with the computer. I would like to target OSX since that's what I am working on. For example, I would launch Dashboard or Mission Control, move the mouse and click on things, open a keyboard, etc.
I wonder if I should use Linux with Xlib or something like that... Would I be more free to execute these kinds of operations? And do you know any libraries that allow them easily, in Python preferably?
This kind of software is called a "robot", or "ui automation", which makes googling a little difficult. Here is one in python: http://code.google.com/p/robotframework/
I like to use Sikuli for this sort of thing. Last time I needed to automate a GUI app on OS X, I wrote a standalone Jython script which used Sikuli as a library.
You can also use the Sikuli IDE if you want to get something working quickly, which can be nice for experimentation.
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I would like to add some interactive capability to a python CLI application I've writen that stores data in a SQLite3 database. Currently, my app reads-in a certain type of file, parses and analyzes, puts the analysis data into the db, and spits the formatted records to stdout (which I generally pipe to a file). There are on the order of a million records in this file. Ideally, I would like to eliminate that text file situation altogether and just loop after that "parse and analyze" part, displaying a screen's worth of records, and allowing the user to page through them and enter some commands that will edit the records. The backend part I know how to do.
Can anyone suggest a good starting point for creating that pager frontend either directly in the console (like the pager "less"), through ncurses, or some other system?
You might want to take a look at urwid. It is a console user interface library for Python. The examples should be more than enough to convince you that this is what you want, if you really want to go text-console UI.
I'd use something like pygtk instead though.
After looking around a bit, I found that less and other pagers actually use curses. When I thought of curses I always imagined the blue-boxed interface with menus and mouse interaction. These are library add-ons for curses, which offer exactly the basic terminal selection and editing control functionality I'm looking for.
Tutorial on Python Curses Programming
Curses Programming with Python
On the backend, when the user attempts to move the cursor above or below the currently displayed records, I'll have sqlite fetch me the next appropriate set of records for display.