Popular recipes tagged "demo" but not "linux"

Design by contract on python vanilla (Python)

2013-11-05T20:50:30-08:00

Python recipe 578767 by Alan Cristhian Ruiz (demo, design_pattern, productivity). Revision 2.

The code below is an example that shows that we can do design by contract in python without any non-standard module.

For MacBook_Pro-Heads Only. Simple LF Audio Oscilloscope Using Standard Text Mode Python. (Python)

2012-10-07T14:15:55-07:00

Python recipe 578282 by Barry Walker (anim, apple, audio, demo, display, macbook_pro, oscilloscope, pyaudio, scope, sound).

For MacBook_Pro-Heads Only. Simple LF Audio Oscilloscope Using Standard Text Mode Python.

SimpleScope_OSX.py

Do you remember this upload from myself on 26-06-2011...

http://code.activestate.com/recipes/577771-simple-lf-audio-oscilloscope-using-standard-text-m/?in=user-4177147

Well here is an August 2012 vintage MacBook Pro 13 inch version of it for OSX 10.7.5...

This is proof of concept code for a kids level project I am doing for a MacBook Pro, 13 inch, OSX 10.7.5. A DEMO to show how to display a waveform using standard text mode Python. "pyaudio" must be installed for this to work. Levels are set using the standard audio mixers, (System Preferences -> Sound).

Just whistle a signal of say 300Hz to 3KHz, (normal voice spectrum), using say, the internal mic, and watch a waveform appear inside the X-Y graticule.

Read the code for more information.

This code is GPL2, but, the hardware information is Public Domain.

(I am looking into including Windows and Linux variants too using pyaudio to access the sound system.)

Enjoy finding simple solutions to often very difficult problems.

Bazza, G0LCU...

For AMIGA-Heads Only. Poking A HW, (Memory), Address On A Classic AMIGA, Inside Text Mode Python. (Python)

2012-09-09T19:25:00-07:00

Python recipe 578255 by Barry Walker (amiga, demo, e_uae, hardware, memory, poke, winuae).

For AMIGA-Heads Only...

This code is purely for a minimum of a stock Classic AMIGA A1200(HD), E-UAE, and WinUAE running AMIGA OS3.0x to 3.1x. It will NOT work on any other platform!

(It MIGHT work on AMIGA OS3.5x and 3.9x with Python 2.4.6, but totally untested and I hold no responsibility for the outcome when trying it.)

It is a DEMO to poke a byte inside _ANY_ memory address inside the standard CPU 68EC020 16MB boundary.

This is not a function nor a class but just a DEMO to show how to write directly to HW, (or memory), addresses.

POKING memory or hardware addresses is not recommended for novices without studying the machine first, and, this code will ignore any _ENFORCER_hits_.

I experimented with this several years ago and have decided to finally release it. I do await the flak!

It works from Python Versions 1.4.0 to 2.0.1 for the classic AMIGA.

This is issued as Public Domain and you may do with it as you please.

Ensure that the T: Volume exists on the running machine.

See inside the code and text below it also as to how it works...

Bazza, G0LCU...

For AMIGA-Heads Only. Peeking A Memory Address On A Classic AMIGA, Inside Text Mode Python. (Python)

2012-07-03T17:00:20-07:00

Python recipe 578189 by Barry Walker (amiga, demo, e_uae, peek, peeking, winuae).

For AMIGA-Heads Only...

This code is purely for a minimum of a stock Classic AMIGA A1200(HD), E-UAE, and WinUAE running AMIGA OS3.0x to 3.1x. It will NOT work on any other platform!

(It MIGHT work on AMIGA OS3.5x and 3.9x with Python 2.4.6, but totally untested and I hold no responsibility for the outcome when trying it.)

It is a DEMO to peek a byte inside _ANY_ memory address inside the standard CPU 68EC020 16MB boundary.

I experimented with this several years ago and have decided to finally release it. I do await the flak!

It works from Python Versions 1.4.0 to 2.0.1 for the classic AMIGA.

Ensure that the T: Volume exists on the running machine.

See inside the code and text below it also as to how it works...

Bazza, G0LCU...

Markov Encryption Demonstration 2 (Python)

2012-03-14T17:39:17-07:00

Python recipe 578076 by Stephen Chappell (demo, demonstration, encode, encoding, encrypt, encryption).

This program is meant to act as an example of how to use ME with data that needs to be obfuscated. The functionality provided via the GUI demonstrates both the ability to encrypt and decrypt all text that the UTF-8 encoding can handle. Explanations come later.

Markov Encryption Demonstration 1 (Python)

2012-03-16T18:59:06-07:00

Python recipe 578062 by Stephen Chappell (demo, demonstration, encode, encoding, encrypt, encryption).

This is a simple GUI program that shows Markov Encryption at work. It is built to be interactive and has all needed code embedded within itself. This version of ME library is not very efficient and represents an early attempt at developing and easily testing the code. Certain limits are built into the program, and the code is not meant to be robust at this stage. This program is a proof-of-concept design meant to ensure that the work being done was viable for future use and that the encryption process could be carried out both ways, both in encoding plaintext and decoding ciphertext.

Morse Code (Python)

2012-01-12T23:45:12-08:00

Python recipe 578012 by Stephen Chappell (demo, demonstration, example, experiment, morse, morse_code, program, sound). Revision 3.

After seeing another recipe recently that helps people with Morse Code, I was inspired to clean up the following code just a bit to make it worthy for the rest of the world. After being executed, it waits for lines of text to be entered, compiles each one in turn into timing codes, and plays them back with a simple execution

For AMIGA-Heads Only. Generating An Audio Signal In Text Mode Python. (Python)

2011-11-30T21:23:20-08:00

Python recipe 577971 by Barry Walker (amiga, audio, demo, e_uae, sound, winuae).

This DEMO is not for the big guns. It is aimed at those who still use a minimum of an ancient classic AMIGA A1200(HD), E-UAE, WinUAE, of which there are still a lot of us about...

No comments about the use of "eval()" as Python Version 1.4.0 does not have "int()" and this is designed to work on all versions of Python available for the above platform. See the code for minimum requirements and much more information.

MANY THANKS to Irmen de Jong for porting early versions of Python to the classic AMIGA to give we lowly users a taste of what was/is to come.

This code will probably make the professionals cough a little, but, boy what fun it is to see how powerful Python can be on an open platform like the AMIGA.

Written in such a way that anyone can understand how it works...

I really don't care how you vote this as it is for those, including professionals, who enjoy messing with AMIGA variants purely for fun and relaxation, and, to......

Enjoy finding simple solutions to often VERY difficult problems... ;o)

Bazza, G0LCU...

Banner (Python)

2011-01-11T05:16:12-08:00

Python recipe 577537 by Raymond Hettinger (banner, demo, formatting, printing). Revision 2.

Easily customizable banner program.

For AMIGA-Heads Only. PAR: As A VOLUME In READ Mode Only. (Python)

2011-06-12T16:34:12-07:00

Python recipe 577750 by Barry Walker (amiga, demo, parallel, parallel_port, port, read).

PAR: as a VOLUME in READ mode using Python 1.4 onwards on Classic AMIGAs...

Many years ago Irmen de Jong ported Python to the Classic AMIGA range of computers, (many thanks Irmen for your time in doing so). The versions were at least 1.4.x to 2.0.1 and now someone else has included version 2.4.6.

This gives we lowly users of the AMIGA at least a chance to see and use Python in some guise or another. This code shows how to access the AMIGA parallel port for 8 bit READ only. This is so that ADCs could be attached to the port, read by Python code EASILY and utilised as a Data Logger/Transient Recorder, as just one example.

There needs to be a single HW WIRE link only from the 23 way video port to the 25 way parallel port for this to work. See the archive......

http://aminet.net/package/docs/hard/PAR_READ

......on how to set about this extremely simple task.

NO knowledge of the parallel port programming is needed at all to grab 8 bit data from it using Python and other languages; (ARexx is used in the archive above).

There is a flaw, NOTE:- NOT A BUG!, in the Python code but for this DEMO it is ignored. ;o)

I'll let all you big guns work out what it is; you will need a good working knowledge of the Classic AMIGA.

Enjoy finding simple solutions to often very difficult problems. ;o)

This code is Public Domain and you may do with it as you please.

Bazza...

Arduino Diecimila Board Access Inside Windows 32 Bit DEMO. (Python)

2011-04-10T11:02:37-07:00

Python recipe 577648 by Barry Walker (access, arduino, demo, windows).

Arduino-Windows2x.py

Finally the Windows 32 bit version of the other recipes of similar design. (The AMIGA/WinUAE and Linux versions are already on this site.)

To get more recognisable characters displayed it is best to use a potentiometer wired as one end to +5V, the other end to Gnd and the wiper to ANALOG IN 0. This has been tested on various Linux Distros and kept as simple as possible so that anyone can understand it.

The required ?.pde file for the Arduino Board can be found here:-

http://code.activestate.com/recipes/577625-arduino-diecimila-board-access-inside-winuae-demo/?in=lang-python

Similar assumptions are made as in the URL above.

Enjoy finding simple solutions to often very difficult problems... ;o)

Bazza, G0LCU.

Arduino Diecimila Board Access Inside WinUAE DEMO. (Python)

2011-03-26T14:30:31-07:00

Python recipe 577625 by Barry Walker (access, amiga, arduino, demo, winuae). Revision 2.

This is one of a few Arduino Python snippets to come your way. This one is DEDICATED entirely to the classic stock AMIGA A1200HD emulation inside WinUAE. With a small hardware modification it WILL work on a genuine stock AMIGA A1200HD also see inside the code for more information.

It only requires an ancient version of SATNDARD Python 1.4.x as an absolute minimum, and yes I know it is ancient, but hey, the classic AMIGA is still capable of running Python to version 2.0.x; other AMIGA variants can run much newer versions.

Certain assumptions have been made and are inside the code.

Also in the code box is the very basic Test.pde file to program the Arduino Diecimila Board with so that this works.

There will be Linux and Windows versions coming that require only STANDARD Python also - NO pySerial is required AT ALL.

Sorry but you will need to split the two pieces of code below manually...

Enjoy finding simple solutions to often very difficult problems...