Popular recipes tagged "meta:loc=87"

Simple Python Point KD Tree (No scipy/numpy needed) (Python)

2015-09-29T16:56:16-07:00

Python recipe 579104 by webby1111 (geometry, kdtree).

A very simple and concise KD-tree for points in python.

For labeled points, you may want to check out my other recipe: Python add/set attributes to list

Human readable output for bytes and seconds (Python)

2014-07-16T17:21:41-07:00

Python recipe 578910 by Mike 'Fuzzy' Partin (humanize).

A set of simple functions to represent bytes or seconds in a human readable form.

Bash script to create a header for Bash scripts (Bash)

2011-11-02T01:57:07-07:00

Bash recipe 577862 by userend (auto, bash, create, emacs, gpl, header, linux, script, shell, vim). Revision 3.

This will create a header for a Bash script. It is a nice way keep a track of what your script does and when it was created, the author of the script, etc..

It will open the script automatically with one of the two most popular editor out there, Vim or Emacs! It also checks to see if there is a script with the same name in the current working directory so it will not overwrite another file.

v0.4: I had to kick this up a notch. I took the suggestion of "dev h" to add a chance for the user to select another name for the script.

Please leave comments and suggestions.

Python Immutable Enumerations Using Duck Punching (Python)

2012-10-18T19:41:22-07:00

Python recipe 578294 by Josh Friend (duckpunching, enum, enumeration, monkeypatching, python).

Here's a fun method of creating enumerations in Python using dynamic class creation and duck-punching (monkey-patching). It works by creating a class called enum using the type metaclass. Duck-punching is then used to add properties to the class. the fget method of the property returns the enum value, but the fset and fdel methods throw exceptions, keeping the enumeration immutable. You can have enum values assigned automatically in sequence, assign them yourself, or have a mix of both.

Decorators for adding aliases to methods in a class (Python)

2011-04-16T19:29:35-07:00

Python recipe 577659 by José Nahuel Cuesta Luengo (alias, decorator).

The following recipe can be used as a means to adding aliases to methods in a class.

Batting-ball (Python)

2011-07-18T15:11:51-07:00

Python recipe 577799 by Dominic Innocent (functions, simple).

Have fun batting a ball about a room & sometimes getting funny results.

Simple analogue anim and digital voltmeter with alarm DEMO... (Python)

2011-03-04T19:47:37-08:00

Python recipe 577596 by Barry Walker (amiga, analogue, anim, audio, demo, digital, display, e_uae, linux, voltmeter, windows, winuae).

I needed a simple standard Python analogue and digital display along with an overload beep when used as a basic voltmeter.

Analogue readout, for quick glance. Digital readout, for better accuracy. Beep, to warn me of impending doom... ;o)

This was my starter code and works from Python 1.4.x to 2.7.x on MINIMUM platforms, AMIGA A1200, MS Windows ME and Knoppix 5.1.1. It is a stand alone program and the easiest way to start it is to import it as though it is a module.

(I DO have a Python 3.x.x version too and WILL be uploaded here in the future.)

Although this is a DEMO it did access, (home built), HW from various ports on differing platforms.

This module IS needed for it to work:-

http://code.activestate.com/recipes/577588-clear-screen-and-beep-for-various-platforms/?in=lang-python

These simple HW access modes using standard Python code WILL be released in the future.

This DEMO is released as Public Domain and you may modify it as you please...

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

73...

Bazza, G0LCU...

Team AMIGA...

Dijkstra's algorithm for shortest paths (Python)

2010-08-02T13:03:45-07:00

Python recipe 577343 by poromenos (algorithms).

Dijkstra(G,s) finds all shortest paths from s to each other vertex in the graph, and shortestPath(G,s,t) uses Dijkstra to find the shortest path from s to t. Uses the priorityDictionary data structure (Recipe 117228) to keep track of estimated distances to each vertex.

Simple, if naive, class factory recipe in python (Python)

2009-11-09T07:59:53-08:00

Python recipe 576951 by Ariel Balter (class_factory). Revision 2.

I'm a hack programmer -- no formal education. So, I don't know if this is technically a "factory", "abstract factory" or something else.

It is a way to generate a class dynamically, perhaps based on run-time data.

The point is that you can take a blank class object and dynamically add a constructor, class attributes, and instance methods. In principle, these could be configured dynamically in a program.

Since I don't know anything about programming theory, I welcome any criticism/discussion/suggestion. But, please be gentle!

@statemethod (Python)

2009-06-15T13:46:39-07:00

Python recipe 576808 by Charlie Nolan (decorator, state_pattern).

Decorator for use with objects following the state pattern.

分析html格式文件的标记 (Python)

2009-02-21T23:52:05-08:00

Python recipe 576658 by nillgump nillgump (html).

分析html格式文件的标记

Create SQL tables from CSV files (Python)

2010-02-24T13:47:36-08:00

Python recipe 498130 by Matt Keranen (database).

Script generates CREATE TABLE statements based on the width of data present in comma delimited (csv) test files. Setting the correct datatypes (other than VARCHAR), is still a manual adventure.

TODOs:

Eliminate '#N/A', '@NA' from data
Remove commas from numeric data
Check for duplicate column names
Create BCP format file or INSERT statements?

Read simple initialization file (Python)

2006-09-22T10:20:30-07:00

Python recipe 498125 by Rick Price .

This recipe can be used to read in simple human readable intialization files. It uses callback methods similar to some SAX implementations I have seen.

Covert Microsoft Office InfoPath 2003 files to CSV report (Python)

2005-11-02T13:18:49-08:00

Python recipe 442520 by Anthony Barker .

I needed a quick hack to extract some data from MS InfoPath files stored on a file server. Infopath data files are stored as XML so it was fairly straight forward to extract the required information. The outputed file is report.csv and a log file is called reportlog.txt. It reads settings from config.ini.

MarkupString (Python)

2005-02-23T19:17:32-08:00

Python recipe 389023 by Thomas Hinkle (xml). Revision 2.

A subclass of String that allows simple handling of pango markup or other simple XML markup. The goal here is to allow a slice of a python markup string to "do the right thing" and preserve formatting correctly. In other word, MarkupString(<i>Hello World</i>)[6:] = "<i>World</i>"

Dijkstra's algorithm for shortest paths (Python)

2002-04-04T12:38:22-08:00

Python recipe 119466 by David Eppstein (algorithms).

Splitting iterators (Python)

2003-07-29T18:14:41-07:00

Python recipe 213027 by Heiko Wundram (algorithms).

Implementation of isplit, a function that splits iterators into two equal ones, which return similar values, but are exact copies of one another.