Author Topic: Python raw input/keyboard polling  (Read 135 times)

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Offline Bobboau

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Python raw input/keyboard polling
I'm working on a small personal project that requires python (something technically similar to this) and I would like to use raw unbuffered keybord input to control it.
What I would ideally like would be a method that returns a set of key codes for all keys being pressed on the system, (again ideally) redirects all keyboard input to it so it doesn't print to the terminal, and (while I'm making unreasonable demands) you can specify which keyboard on the system it will attach to.
This will be on a Raspberry pi (original model B) running the latest Raspian. There is no need to worry about portability.

any ideas? Python is not a language I have used much.
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Offline AdmiralRalwood

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Re: Python raw input/keyboard polling
What library are you using to handle input?
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<MageKing17> this ****ing code did it to me again
<MageKing17> "That doesn't really make sense to me, but I'll assume it was being done for a reason."
<MageKing17> **** ME
<MageKing17> THE REASON IS PEOPLE ARE STUPID
<MageKing17> ESPECIALLY ME

<MageKing17> God damn, I do not understand how this is breaking.
<MageKing17> Everything points to "this should work fine", and yet it's clearly not working.
<MjnMixael> 2 hours later... "God damn, how did this ever work at all?!"
(...)
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<MageKing17> but once again we have reached the inevitable conclusion
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Offline Bobboau

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Re: Python raw input/keyboard polling
Nothing at the momemt, so far I've just been focusing on the output, I've started looking into termios, but the main goal of this thread is figuring out what to use.
Bobboau, bringing you products that work... in theory
learn to use PCS
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DEUTERONOMY 22:11
Thou shalt not wear a garment of diverse sorts, [as] of woollen and linen together

 

Offline AdmiralRalwood

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Re: Python raw input/keyboard polling
There are at least as many different ways to handle input in Python as there are libraries to choose from; usually you pick something that handles both input and output (e.g. pyglet), but you can probably find something solely for raw input if you want.
Ph'nglui mglw'nafh Codethulhu GitHub wgah'nagl fhtagn.

schrödinbug (noun) - a bug that manifests itself in running software after a programmer notices that the code should never have worked in the first place.

When you gaze long into BMPMAN, BMPMAN also gazes into you.

"I am one of the best FREDders on Earth" -General Battuta

<Aesaar> literary criticism is vladimir putin

<MageKing17> "There's probably a reason the code is the way it is" is a very dangerous line of thought. :P
<MageKing17> Because the "reason" often turns out to be "nobody noticed it was wrong".
(the very next day)
<MageKing17> this ****ing code did it to me again
<MageKing17> "That doesn't really make sense to me, but I'll assume it was being done for a reason."
<MageKing17> **** ME
<MageKing17> THE REASON IS PEOPLE ARE STUPID
<MageKing17> ESPECIALLY ME

<MageKing17> God damn, I do not understand how this is breaking.
<MageKing17> Everything points to "this should work fine", and yet it's clearly not working.
<MjnMixael> 2 hours later... "God damn, how did this ever work at all?!"
(...)
<MageKing17> so
<MageKing17> more than two hours
<MageKing17> but once again we have reached the inevitable conclusion
<MageKing17> How did this code ever work in the first place!?

<@The_E> Welcome to OpenGL, where standards compliance is optional, and error reporting inconsistent

<MageKing17> It was all working perfectly until I actually tried it on an actual mission.

<IronWorks> I am useful for FSO stuff again. This is a red-letter day!
* z64555 erases "Thursday" and rewrites it in red ink

<MageKing17> TIL the entire homing code is held up by shoestrings and duct tape, basically.

  

Offline Bobboau

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Re: Python raw input/keyboard polling
well this is going to be running in a headless environment, so output would be at best useless and at worse a source of failure. so that's why I have been avoiding all inclusive game apis.
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learn to use PCS
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My latest build of PCS2, get it while it's hot!
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DEUTERONOMY 22:11
Thou shalt not wear a garment of diverse sorts, [as] of woollen and linen together