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Python: Check if two given sets have no elements in common

Python sets: Exercise-17 with Solution

Write a Python program to check if two given sets have no elements in common.

Sample Solution-1:

Python Code:

x = {1,2,3,4}
y = {4,5,6,7}
z = {8}
print("Original set elements:")
print(x)
print(y)
print(z)
print("\nConfirm two given sets have no element(s) in common:")
print("\nCompare x and y:")
print(x.isdisjoint(y))
print("\nCompare x and z:")
print(z.isdisjoint(x))
print("\nCompare y and z:")
print(y.isdisjoint(z))

Sample Output:

Original set elements:
{1, 2, 3, 4}
{4, 5, 6, 7}
{8}

Confirm two given sets have no element(s) in common:

Compare x and y:
False

Compare x and z:
True

Compare y and z:
True

Pictorial Presentation:

Python Sets: Check if two given sets have no elements in common.
Python Sets: Check if two given sets have no elements in common.
Python Sets: Check if two given sets have no elements in common.

Visualize Python code execution:

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


Sample Solution-2:

Python Code:

def compare_sets(s1,s2):
    for i in s1:
        if i in s2:
            return False
    return True

x = {1,2,3,4}
y = {4,5,6,7}
z = {8}
print("Original set elements:")
print(x)
print(y)
print(z)
print("\nConfirm two given sets have no element(s) in common:")
print("\nCompare x and y:")
print(compare_sets(x,y))
print("\nCompare x and z:")
print(compare_sets(x,z)) 
print("\nCompare y and z:")
print(compare_sets(y,z))

Sample Output:

Original set elements:
{1, 2, 3, 4}
{4, 5, 6, 7}
{8}

Confirm two given sets have no element(s) in common:

Compare x and y:
False

Compare x and z:
True

Compare y and z:
True

Flowchart:

Flowchart: Check if two given sets have no elements in common.

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 check if a given value is present in a set or not.
Next: Write a Python program to check if a given set is superset of itself and superset of another given set.

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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