Top-rated recipes tagged "random"

TicTacToe (text based) (Python)

2016-11-27T07:10:56-08:00

Python recipe 580723 by Brandon Martin (artificial_intelligence, game, python, random, tac, tic, tictactoe, toe).

A text based version of TicTacToe for Python. Difficulty is not yet implemented, however, a computer player has been implemented that cannot be beaten. Posting just for fun.

Examples for random float between 0 and 1 (Python)

2015-06-25T17:55:33-07:00

Python recipe 579072 by Stephen Chappell (example, random).

I was researching how floats are stored in a computer and was trying to think up a way to generate random values between 0 and 1. Python already provides an implementation allowing this already, and two of the functions below are directly inspired by that code, but the third is a slightly different way of doing the same thing. A similar version of this code has been used to implement similar functionality in C# at one time. Others might also find it useful if they want to create equivalent code in a separate language while having access to random bytes but not random floats. It should be noted that the various implementations get slower as you go down the list.

Secure Password Generator (Python)

2011-06-17T15:25:20-07:00

Python recipe 577759 by amir naghavi (password, random).

A password generator that uses OS facilities to generate none pseudo random numbers. the SystemRandom uses CryptGenRandom in Windows and /dev/random in linux and it is so better to use this to create random numbers in cryptography or any other security areas.

Pick random elements from a predefined list of choices (Python)

2011-06-14T17:46:41-07:00

Python recipe 577754 by Patrick Dobbs (choice, random, selection).

This (quick but strangely satisfying) recipe combines the use of random.choice with functools.partial from the standard library. It is a factory function returning random.choice pre-filled with its sequence of options.

Simple Sudoku (Python)

2011-06-02T14:15:02-07:00

Python recipe 577716 by amir naghavi (algorithm, game, oo, python, random, sudoku). Revision 10.

This is a simple sudoku game.

Dynamical Billiards Simulation (Python)

2010-10-30T06:22:28-07:00

Python recipe 577445 by FB36 (chaos, graphics, math, pil, random).

It simulates reflections of a ball on a billiards table that has one or more circular obstacles. (This can also be thought as a 2d ray-tracing.)

Most of the time the path of the ball would be chaotic (meaning, if another ball started from any slightly different location or direction then its path would be very different after a short while).

See Wikipedia for more info: http://en.wikipedia.org/wiki/Dynamical_billiards

Random Passwords (Python)

2010-07-27T20:28:17-07:00

Python recipe 577339 by Danillo Souza (generator, password, python, random).

Generate strong random passwords of specified length.

The many uses of randomness - Part 2 (Python)

2016-07-17T17:26:47-07:00

Python recipe 580690 by Vasudev Ram (random, random_number, simulation, testing).

This is the second recipe in the series about the uses of randomness in Python. The first recipe is here:

https://code.activestate.com/recipes/580674-the-many-uses-of-randomness-part-1/?in=user-4173351

This second recipe shows some uses of random numbers to generate random characters and random strings of various categories, and some purposes for which these generated strings can be used in testing.

Guess a number (Python)

2014-11-15T09:06:05-08:00

Python recipe 578962 by Benoit (function, game, random, sample).

This is just a little game to explain some very basic function in Python for beginner. RANDOM, Loop, Try and except...

Random Password Generation (Python)

2014-08-10T15:50:40-07:00

Python recipe 578920 by Paul Wolf (generator, password, python, random, string, strong).

Generate a password (or other secure token) using a pattern language similar to regular expressions. We'll use the strgen module that enables a user to generate test data, unique ids, passwords, vouchers or other randomized data very quickly using a template language. The template language is superficially similar to regular expressions but instead of defining how to match or capture strings, it defines how to generate randomized strings.

Pseudo-Random Experiment: Coin Toss (Python)

2014-03-31T18:51:15-07:00

Python recipe 578859 by Fabian Mayer (python, random, toss).

This Python Script flips a coin a user defined number of times and returns the frequency and relative frequency for heads and tails.

random send mail, sms or popup window (Python)

2013-09-04T19:43:19-07:00

Python recipe 578598 by peekaa (popup, random, sendmail, sms). Revision 4.

If you need to do something irregularly, randomly during the day, you often forget. This script gives you mail, sms or popup window indefinitely in random interval to remind you of doing it. It runs forever. If you want to send emails, uncomment the row sendMail() and fill variable me, to, smtp, name, login in function sendMail().

Dynamical Billiards Simulation (Python)

2013-06-20T06:57:57-07:00

Python recipe 578572 by Steve Wadley (chaos, graphics, math, pil, random).

It simulates reflections of a ball on a billiards table that has one or more circular obstacles. (This can also be thought as a 2d ray-tracing.)

Most of the time the path of the ball would be chaotic (meaning, if another ball started from any slightly different location or direction then its path would be very different after a short while).

See Wikipedia for more info: http://en.wikipedia.org/wiki/Dynamical_billiards

Small random number generator (C)

2012-05-15T19:49:34-07:00

C recipe 578134 by Sachin Joglekar (generate, malloc, random, stdlib).

Generates random numbers in a given range using malloc function in stdlib.h. Based on the observation that the memory address allocated during malloc is usually 'random' (for humans). takes in two arguments- start of range, end of range.

Random user generator (Python)

2012-02-27T16:58:33-08:00

Python recipe 578055 by Koppula Varun Raj (generator, pickle, python3, random).

I've worked on a random user generator in C a long time ago, so I thought I'd make an advanced version of it in Python(3.2). I'll have you know, I am an amateur in Python and even programming for that matter so I'd really appreciate some criticism on my code and what more can be added.

About the program - I've added a default list of users, you can modify the list to your convenience and for data persistence, I made use of the pickle module. The random module plays the pivotal role generating the output making use of the choice method. Those along with the os module if the program is being run for the first time on a pc, it will create a data file with the default list.After some digging around, I managed to find os.getlogin() from the python library which was exactly what I was looking for (to get the computer's name making sure it can get the data file to the correct directory). I'm a little skeptical about that part, wondering whether or not it will work on every pc.

Funny text generator (Python)

2011-12-25T11:14:39-08:00

Python recipe 577988 by Pierre Quentel (generation, random, text). Revision 4.

This class takes a text (preferably long enough) and generates another text that "looks like" the original. It won't mean anything, or just by chance ;-)

For example, taking Hamlet, Act I, the program generates things like :

Hamlet

And vanish'd from our watch;
His further. Fare third nights of the flushing immortal as it draw you into the flushing thy complete steel
'Tis sweet and each new-hatch'd:
A country's father;
To business and is prodigal thee!
Have of crowing more the should I have heaven,
Forward, therefore as ourself in the business it, Horatio
To what is't that your watch, bid this here!

Usage :

generator = TextGenerator(txt)
result = generator.random_text(3000)

Random Binary List (Python)

2011-11-09T19:38:14-08:00

Python recipe 577944 by Alexander James Wallar (base, binary, list, math, numbers, python, random, random_binary_list).

This recipe returns a list of size n such that the contents of the returned list are random 0s and 1s. It returns a random binary list of size n.

Weighted random choice (Python)

2010-08-19T08:40:38-07:00

Python recipe 577363 by Carlos Valiente (random, sequence).

This function returns a random element from a sequence. The probability for each element in the sequence to be selected can be weighted by a user-provided callable

Numerical Integration using Monte Carlo method (Python)

2010-06-16T19:31:17-07:00

Python recipe 577263 by FB36 (function, math, random). Revision 2.

Numerical Integration using Monte Carlo method.

Area Under the Curve using Monte Carlo method (Python)

2010-06-17T03:54:27-07:00

Python recipe 577262 by FB36 (function, math, random). Revision 5.

Calculating area under the curve using Monte Carlo method for any given function.