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Python: Create a list of random integers and select multiple items from the said list

Python module: Exercise-8 with Solution

Write a Python program to create a list of random integers and randomly select multiple items from the said list.

Use random.sample

Sample Solution:

Python Code:

import random 
print("Create a list of random integers:")
population = range(0, 100)
nums_list = random.sample(population, 10)
print(nums_list)
no_elements = 4
print("\nRandomly select",no_elements,"multiple items from the said list:")
result_elements = random.sample(nums_list, no_elements)
print(result_elements)
no_elements = 8
print("\nRandomly select",no_elements,"multiple items from the said list:")
result_elements = random.sample(nums_list, no_elements)
print(result_elements)

Sample Output:

Create a list of random integers:
[46, 4, 45, 50, 43, 85, 74, 42, 99, 7]

Randomly select 4 multiple items from the said list:
[99, 45, 85, 50]

Randomly select 8 multiple items from the said list:
[46, 43, 74, 4, 45, 85, 99, 50]

Flowchart:

Flowchart: Create a list of random integers and select multiple items from the said list.

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:


Python Code Editor:

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Previous: Write a Python program to generate a float between 0 and 1, inclusive and generate a random float within a specific range.
Next: Write a Python program to set a random seed and get a random number between 0 and 1.

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m