Python random number generator without repeats – tutorial

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Python random number generator without repeats - tutorial
Python random number generator without repeats – tutorial
Find out how to randomly generate unique (no repeats) numbers in Python in this Python random number generator without repeats tutorial. This a simple guide to using the random module to generate non-repeating, randomly selected numbers, in Python.



00:00 Introduction
00:22 Example in a Python script
00:33 Random.sample()
00:57 Print random numbers
01:08 #runthat
01:45 How to fix ValueError
02:18 Changing range and sample


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What is the Python ‘random’ module?

The random module is a built-in Python library that provides a suite of functions for generating random numbers, sequences, and selections. It is useful for a wide range of applications such as generating test data, randomizing game outcomes, and shuffling data for machine learning models.

The random module can be used to generate random integers, floats, and booleans, shuffle sequences, pick a random item from a list, generate random passwords, colors, dates, times, IP addresses, and much more. To use the random module, you simply need to import it into your Python program and call the appropriate function to generate the random data you need.

The random module is a powerful and flexible tool for generating random data in Python, and it is an essential library for any programmer who needs to work with random data.

To use the ‘random’ module in a Python script, you first need to import it with the following statement: import random

Once you have imported the ‘random’ module, you can use its various functions to generate random numbers, sequences, and selections. Here are some examples:

– ‘random.randint(a, b)’
– ‘random.random()’
– ‘random.shuffle(seq)’
– ‘random.choice(seq)’
– ‘random.sample(population, k)’
– ‘random.uniform(a, b)

You can also set the seed value for the random number generator with ‘random.seed(a)’, where ‘a’ is an integer value.

The ‘random’ module is useful in a wide variety of applications, from generating random data for testing and simulations to implementing randomization techniques in algorithms and machine learning models. It can also be used to create games, generate passwords, or select random items from a dataset.

Creating random numbers without repeats

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Using the Python ‘random’ module in app development

The random module can be used in various ways in app development, depending on the specific requirements and use cases of your app.

Here are some examples:

Game development…
The random module is commonly used in game development to generate random events, scenarios, and behaviors. For instance, in a card game app, the shuffle() function can be used to randomize the deck of cards, while the choice() function can be used to select a random card from the deck.

Recommendation systems…
Many apps use recommendation systems to suggest items or content to users based on their preferences and behavior. The random module can be used to add some randomness to the recommendations, for instance by randomly selecting some items from the recommended list, or by randomly weighting the recommendations based on some criteria.

Data visualization…
Some apps use random data to create dynamic and interactive visualizations. The random module can be used to generate random data points, noise, or patterns that can be used to create animations, charts, or other visual effects.

Randomness is also a critical component of many security systems and protocols. The random module can be used to generate random keys, tokens, or passwords that are hard to guess or predict. In some cases, the random module can also be used to create fake data for testing and debugging purposes.

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