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Permutations using generators 
File ID: 66784

Permutations using generators 
Download Permutations using generators Error Link
License: Freeware
Downloads: 2
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Permutations using generators  Description
Description: permIter() takes a sequence and returns an iterator that goes through all possible permutations of that sequence.

License: Freeware

Related: Algorithms


Downloads: 2

More Similar Code

Here is an implementation of cooperative multithreading using generators that handles signals (SIGINT only in this recipe).

Generates all possible permutations using the inbuilt perms function and uses a siphon to distinguish which ones are the same.

This is a basic re-implementation of fileinput using generators. It supports all basic functionality that the library module has (nextfile(), lineno(), filelineno(), close(), and filename()). It also adds an __iter__() method that is a generator.

You can generate random permutations using MATLAB's randperm function. Unfortunately, thius function is quite inefficient since it is implemented by sorting a list of random numbers. This requires time O(n * log(n)).

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An example which shows the power of decorators when combined
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Generators, introduced in Python 2.2, can be used to work with infinite sets. Here is a simple example of a generator that creates the Fibonacci sequence.

Given a string of chars and a length, returns permutations of the specified length using the char string given in order. For example, given a string of "01" and a length of 3 returns 000, 001, 010, 011 ... 111

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