Popular recipes tagged "meta:loc=175"

War Game (Version 6) (Python)

2012-12-07T01:49:19-08:00

Python recipe 578370 by Stephen Chappell (card, demonstration, game).

As the final version of the War Game, development finally came to a halt as the prototype exceeded it bounds for design. Yes, you can write your program as one large function, but should you? This recipe demonstrates that program without proper style can lead to a mess very quickly. Practice good coding standards, or you can easily loose focus and the ability to maintain your code.

OpenKinect Mouse Control Using Python (Python)

2012-04-15T18:49:00-07:00

Python recipe 578104 by Alexander James Wallar (3d, computer, computer_vision, depth, hand_tracking, kinect, mouse, opencv, openkinect, python, tracking, vision). Revision 2.

This is a simple code that lets a user control the mouse and left-click using the Microsoft Kinect, Python, and OpenKinect.

Computer Prerequisites:
-OpenKinect
-Python Wrapper for OpenKinect
-A Linux machine using Ubuntu
-OpenCV 2.1
-OpenCV 2.3
-Python 2.7.2
-A Microsoft Kinect
-A Microsoft Kinect USB Adapter
-PyGame
-Xlib for Python

To run this code you either need to start it in the terminal or you need to write a short bash script that runs the code. This is necessary because it requires super-user privileges.

The Bash script is (Assuming the code is saved by the name 'Hand Tracking.py' in /home/$USER directory:

#!bin/bash
cd 'home/$USER'
gksudo python 'Hand Tracking.py'

The code is heavily commented and most of what you will need to know is there.

Rsync Algorithm (Python)

2011-01-09T16:32:22-08:00

Python recipe 577518 by Eric Pruitt (algorithm, delta, diff, patch, python3, rsync). Revision 4.

This is a pure Python implementation of the rsync algorithm. On my desktop (3.0GHz dual core, 7200RPM), best case throughput for target file hash generation and delta generation is around 2.9MB/s. Absolute worst case scenario (no blocks in common) throughput for delta generation is 200KB/s to 300KB/s on the same system.

Tested in Python 2.5, 2.6, and 3.1. In 2.7, io.BufferedReader should yield the best throughput. On all other versions use __builtin__.open.

The Matrix Effect (JavaScript)

2009-07-28T10:13:20-07:00

JavaScript recipe 576861 by Panda Moniom (dynamic_drive, effect, javascript, matrix, text).

This code is and opensource code from Dynamic Drive.

Add the Matrix effect to any text. I have displayed the code for and entire demo page. Any text that you want to have the Matrix effect, put it inside <div id="matrix> and </div>.

regexplace: regular expression search and replace (Python)

2006-02-08T00:44:06-08:00

Python recipe 473828 by Stefano Spinucci (text). Revision 4.

This script search and replace files in a directory, recursively.

file name and search string can be a regular expression.

Execution can be simulated, step by step, and are always shown changed files/lines.

BaseDict -- a dict that (1) accesses data thru attributing (2) copy correctly (Python)

2006-01-27T06:44:54-08:00

Python recipe 473790 by runsun pan (shortcuts). Revision 3.

<code>A dict extension that has the following features:

1. dual data storages: use 'bd.x' or 'bd["x"]' for one,
   and bd.getDict() for another.

2. All the followings are equivalent::

       bd['x']= val
       bd.x   = val
       bd.setItem('x', val)  # Return bd

3. bd.setDict('x',val) will save 'x' to bd.__dict__,
   but not bd.items

4. When copy, copy the internal object correctly.

</code>