Python Comparing Tuples [Step by Step Guide]

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Python Comparing Tuples [Step by Step Guide] - linuxnasa

In this tutorial, we will learn about Python comparing tuples using step by step guide. In Python, tuple is a data structure which is also an iterable object. There are use cases or requirement in our day to day task where we have to do the comparison of different tuples. There are different built-in functions and modules available like Numpy module which can be utilized to compare the tuples. In this tutorial, we will cover built-in functions and comparison operator to compare the tuples.

 

Python Comparing Tuples [Step by Step Guide] – linuxnasa

There are multiple ways to compare tuples. We will learn about three basic and most used methods for comparing tuples. These methods helps us solved many requirements. These methods are:

  • Comparison Operators (==, !=, <, <=, >, >=)
  • all() Function
  • any() Function

 

Also Read:

[Solved] error: cannot find module ‘express’

 

Using Comparison Operators

There are 6 comparison operators available which can be used to compare tuples. These operators are listed in below table. We will look at the usage of each operator using examples.

Before jumping into the implementation of tuple comparison using different operators, It is import to know that in Python, tuple comparison is performed lexicographically. It means tuples are compared element-wise. It will compare first element of both tuple, if the first element satisfy the condition, overall output is returned as true else false otherwise. Let us look at examples now to grab more understanding on the concept.

 

Example-1:

values1 = (4,10,4,7)
values2 = (5,6,3,1)

print ("Equal to Operation output: ", values1 == values2)
print ("Not equal to Operation output: ", values1 != values2)
print ("Less than Operation output: ", values1 < values2)
print ("Less than or equal to Operation output: ", values1 <= values2)
print ("Greater than Operation output: ", values1 > values2)
print ("Greater than or equal to Operation output: ", values1 >= values2)
OUTPUT
Equal to Operation output: False
Not equal to Operation output: True
Less than Operation output: True
Less than or equal to Operation output: True
Greater than Operation output: False
Greater than or equal to Operation output: False
In the above example, first element of each tuple is compared in each statement. For example, equal to operator will compare the first element from each tuple (4 < 5) , If the condition is true, overall output is true. If the condition is false, overall output is false. Similarly, it will execute other operators and returns the output as true/false.

 

Using all() Function

In Python, all() is a built-in function which provides the ability to compare the iterable objects (list, tuples, set and dictionary). It returns true if all elements of iterable are true else it will return false. Let us see below example to implement the concept. To compare the tuples element-wise, we will use zip() function which is again a built-in function in Python. If all elements satisfy the condition, it will return true. If any of the element does not satisfy the condition, it will return false. Checkout the below examples.

Example-2

Let us utilize same tuples from example-1 as shown below. We will then apply each comparison operators on these tuple and see the output it returns.

values1 = (4,1,2,9)
values2 = (5,6,3,7)

Equal to

print (f"Equal to Operation output: {all(x < y for x, y in zip(values1, values2) )}")
OUTPUT
Equal to Operation output: False

 

Not Equal to
print (f"Not equal to Operation output: {all(x < y for x, y in zip(values1, values2) )}")
OUTPUT
Not equal to Operation output: False

 

Less than
print (f"Less than Operation output: {all(x < y for x, y in zip(values1, values2) )}")
OUTPUT
Less than Operation output: False

 

Less than or equal to
print (f"Less than or equal to Operation output: {all(x < y for x, y in zip(values1, values2) )}")
OUTPUT
Less than or equal to Operation output: False

 

Greater than
print (f"Greater than Operation output: {all(x < y for x, y in zip(values1, values2) )}")
OUTPUT
Greater than Operation output: False

 

Greater than or equal to
print (f"Greater than or equal to Operation output: {all(x < y for x, y in zip(values1, values2) )}")
OUTPUT
Greater than or equal to Operation output: False

 

Using any() Function

In Python, just like all(), any() is also a built-in function which is used to compare the iterable objects. any() function too can be used along with zip() function to do the element-wise comparison of iterable objects. In the below example, we have taken two tuple and doing the comparison using any() function. If any one if the element in iterable object satisfy the condition, overall outcome will be returned as true,  false otherwise.

Example-3

values1 = (4,1,2,9)
values2 = (5,6,3,7)

print (f"Equal to Operation output: {any(x < y for x, y in zip(values1, values2) )}")
print (f"Not equal to Operation output: {any(x < y for x, y in zip(values1, values2) )}")
print (f"Less than Operation output: {any(x < y for x, y in zip(values1, values2) )}")
print (f"Less than or equal to Operation output: {any(x < y for x, y in zip(values1, values2) )}")
print (f"Greater than Operation output: {any(x < y for x, y in zip(values1, values2) )}")
print (f"Greater than or equal to Operation output: {any(x < y for x, y in zip(values1, values2) )}")

OUTPUT

Equal to Operation output: True
Not equal to Operation output: True
Less than Operation output: True
Less than or equal to Operation output: True
Greater than Operation output: True
Greater than or equal to Operation output: True

 

Summary

Reference – docs.python.org

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