Popular recipes tagged "meta:loc=91"

bitfield rev2 (Python)

2014-08-17T16:40:55-07:00

Python recipe 578922 by juan .

python class bf for bitfields manipulation is a rev 2 for the Recipe 113799 rev 1 include the bug fix detected for Patric Edsall and other tools

Simple python thread manager (Python)

2012-12-17T16:19:12-08:00

Python recipe 578385 by Tom Wissing (manager, python, threading, threads).

A simple python static class handling basic threading. Designed for "worker" threads that loop forever over a function and the like.

Simple python thread manager (Python)

2012-11-17T23:18:17-08:00

Python recipe 578331 by Tino Deak (manager, python, threading, threads).

A simple python static class handling basic threading. Designed for "worker" threads that loop forever over a function and the like.

threadbox.py (Python)

2012-10-09T22:40:09-07:00

Python recipe 578152 by Stephen Chappell (metaclass, threading). Revision 2.

Provide a way to run instance methods on a single thread.

This module allows hierarchical classes to be cloned so that their instances run on one thread. Method calls are automatically routed through a special execution engine. This is helpful when building thread-safe GUI code.

Console CD Player (Python)

2012-07-11T12:26:10-07:00

Python recipe 578207 by Stephen Chappell (archive, console, old, playback).

You have probably seen many different GUI programs that can play music on CDs. Well, here is a console-based recipe that can do the same thing. This is committed for archival to be run under Python 2.5 or later versions.

Wait for PID and check for PID existance (POSIX) (Python)

2012-04-15T14:13:02-07:00

Python recipe 578022 by Giampaolo Rodolà (exists, exit, pid, process, status, timeout, wait). Revision 7.

Two functions: one which waits for a certain PID to terminate (with optional timeout), another one which checks whether a process with a given PID is running.

This was extracted from psutil project which also provides a Windows implementation.

Timeout functionality is implemented as a busy loop and it was inspired by http://bugs.python.org/issue5673.

extending xrange to support slicing and indexing (Python)

2012-03-13T16:13:16-07:00

Python recipe 578070 by Garrett (object, python, xrange).

an object which extends the xrange object to support slicing and indexing (simple)

Discrete PID Controller (Python)

2015-12-18T20:59:43-08:00

Python recipe 577231 by Caner (controller, derivative, discrete, integral, pid, proportional, python).

The recipe gives simple implementation of a Discrete Proportional-Integral-Derivative (PID) controller. PID controller gives output value for error between desired reference input and measurement feedback to minimize error value. More information: http://en.wikipedia.org/wiki/PID_controller

For new version please check: https://github.com/ivmech/ivPID

Flatten XML to XPath syntax lines (Python)

2011-01-19T16:05:24-08:00

Python recipe 577547 by Raphaël Jolivet (flatten, grep, sed, xml, xpath).

This script acts like xml2. It transforms a XML file into a flat text output, with XPath-like syntax, one line per XML node or attribute. This format is more suitable for working with standard unix CLI utils (sed, grep, ... etc).

Simple numeric database (Python)

2011-05-16T08:41:46-07:00

Python recipe 577697 by Mike Sweeney (array, database, numeric). Revision 2.

A simple in-memory numeric database for Python. Arrays are used to minimise memory consumption.

Simple numeric database (Python)

2011-05-16T12:11:24-07:00

Python recipe 577698 by Hamidreza Joshaghani (array, database, numeric).

A simple in-memory numeric database for Python. Arrays are used to minimise memory consumption.

Accented Characters for Tkinter Widgets (Python)

2011-01-07T13:09:51-08:00

Python recipe 576950 by Stephen Chappell (ui). Revision 3.

See Recipe 286155 for original code and author.

This module provides two standard Tkinter widgets, Entry and ScrolledText, modified for text editing with key bindings that allow entering accented letters, umlauts, etc.

Usage: To enter an accented character, press Ctrl-symbol, then press the character key. Example: to enter U with umlaut, press Ctrl-", U. For accent symbols that need shift, press Ctrl-Shift-symbol (for example, Ctrl-Shift-' if " is under Shift-').

Accent bindings are defined in the Diacritical.accent table. Not all accents exist on all letters. This is handled by gracefully falling back to the base letter.

Additional changes in default Tk key bindings: Ctrl-A is now select-all.

Authenticate with twisted.web.xmlrpc (Python)

2006-09-05T18:09:47-07:00

Python recipe 473865 by Duncan McGreggor (network). Revision 2.

These classes subclass several of the culprits in twisted.web.xmlrpc that are responsible for not being able to make autenticated XML-RPC calls.

Note that this recipe also makes use of the URI classes that were posted in a previous recipe here: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/473864

I will submit a patch to twisted along these lines, but there will be no references to the custom Uri module or code.

Update: XML-RPC Authentication is now supported in Twisted (version 2.4 included a patch based on this recipe). If you are using a recent version of Twisted or can update to a recent version, this recipe is no longer needed.

How to use twisted pb pager (Python)

2005-11-28T03:04:25-08:00

Python recipe 457670 by Matthew Sherborne (network).

How to transfer large files with Twisted Perspective Broker using twisted.spread.util.Pager and friends. Code copied and pasted from here: http://twistedmatrix.com/pipermail/twisted-python/2003-May/004019.html

Just wanted to make it easier to find. Originally by: Glyph Lefkowitz

List all Type 1 Cyrillic fonts to one PDF file (Python)

2005-08-06T12:15:13-07:00

Python recipe 438818 by Yuriy Tkachenko (text).

This example uses ReportLab PDF library href="http://www.reportlab.com">http://www.reportlab.com and made from reportlab/demos/stdfonts/stdfonts.py demo. It generates tables showing all Type 1 fonts in Cyrillic cp1251 encoding in /usr/share/fonts/default/Type1 Linux directory. It may be helpful for choosing most suitable fonts for your documents.

Entering accented characters in Tkinter widgets (Python)

2005-01-12T22:00:07-08:00

Python recipe 286155 by Artur de Sousa Rocha (ui). Revision 4.

This module provides two standard Tkinter widgets, Entry and ScrolledText, modified for text editing with key bindings that allow entering accented letters, umlauts, etc.

Accent bindings are defined in the Diacritical.accent table. Not all accents exist on all letters. This is handled by gracefully falling back to the base letter.

Additional changes in default Tk key bindings: Ctrl-A is now select-all.

Console built with Cmd object (Python)

2004-04-27T12:50:16-07:00

Python recipe 280500 by James Thiele .

This recipe shows how to use the Cmd object to create a simple OS neutral console. It shows how to use many of the hooks provided by the Cmd object and also documents some errors and omissions in the official cmd documentation,

import Outlook contacts using win32com (Python)

2003-01-10T19:59:18-08:00

Python recipe 173216 by Kevin Altis . Revision 3.

This is a simple class and test code to read the Contacts from Outlook using win32com, which is part of Mark Hammond's win32all package.

Implementing C function callbacks using Python (Python)

2001-06-19T15:01:52-07:00

Python recipe 65210 by pink chry (extending). Revision 2.

Lets say you have a function in C or C++ that takes a function callback as an argument. You want to call this function by passing a Python function as the callback. This recipe shows the basics by calling the standard C library function qsort, and passing a python function as the compare function.