Python Tuple index() method with Examples

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In the previous article, we have discussed Python Tuple count() method with Examples
Tuples in Python:

Tuples are a data structure in Python that stores an ordered succession of values. They are unchangeable. This signifies that the values of a tuple cannot be changed. They allow you to save an organized list of items. A tuple, for example, can be used to hold a list of employee names.

Tuple index() Method in Python:

The index() method returns the position in the given tuple of the given element.

Syntax:

gvntuple .index(element, start, end)

Parameter Values: 

The tuple index() method can accept up to three arguments:

element – the to-be-searched element

start (optional) – Begin searching from this index

end (optional) – Search the element all the way up to this index

Return Value:

The index() method returns the index of the specified tuple element.
A ValueError exception is thrown if the element is not found.

Note:

Only the first occurrence of the matching element is returned by the index() method.

Examples:

Example1:

Input:

Given Tuple= ('hello', 'this', 'is', 'this', 'python', 'programs')
Given Element = 'this'

Output:

The given element { this } in the given tuple ('hello', 'this', 'is', 'this', 'python', 'programs') is present at the index :
1

Example2:

Input:

Given Tuple= ('hello', 'this', 'is', 'this', 'python', 'programs')
Given Element = 'morning'

Output:

Traceback (most recent call last):
  File "/home/a3ee758dfee37d1702ad5c70e38293aa.py", line 8, in <module>
    resltind = gvntupl.index(gvnele)
ValueError: tuple.index(x): x not in tuple

Tuple index() Method with Examples in Python

Method #1: Using Built-in Functions (Static Input)

Example-1: If the element is present in the given Tuple

Approach:

  • Give the Tuple as the static input and store it in a variable.
  • Give the element whose index must be located in the given Tuple and store it in another variable.
  • Pass the given element to the index function for the given Tuple and store the result in resltind variable.
  • Print the resltind value.
  • The Exit of the Program.

Below is the implementation:

# Give the tuple as the static input and store it in a variable.
gvntupl = ('hello', 'this', 'is', 'this', 'python', 'programs')
# Give the element whose index must be located in the given tuple
# and store it in another variable.
gvnele = 'this'
# Pass the given element to the index function for the given tuple
# and store the result in resltind variable.
resltind = gvntupl.index(gvnele)
# Print the resltind value.
print('The given element {', gvnele, '} in the given tuple',
      gvntupl, 'is present at the index :')
print(resltind)

Output:

The given element { this } in the given tuple ('hello', 'this', 'is', 'this', 'python', 'programs') is present at the index :
1
Example-2: If the element is not present in the given Tuple

Below is the implementation:

# Give the tuple as the static input and store it in a variable.
gvntupl = ('hello', 'this', 'is', 'this', 'python', 'programs')
# Give the element whose index must be located in the given tuple
# and store it in another variable.
gvnele = 'now'
# Pass the given element to the index function for the given tuple
# and store the result in resltind variable.
resltind = gvntupl.index(gvnele)
# Print the resltind value.
print('The given element {', gvnele, '} in the given tuple',
      gvntupl, 'is present at the index :')
print(resltind)

Output:

Traceback (most recent call last):
  File "/home/a3ee758dfee37d1702ad5c70e38293aa.py", line 8, in <module>
    resltind = gvntupl.index(gvnele)
ValueError: tuple.index(x): x not in tuple
Example-3: Giving Start Index

Below is the implementation:

# Give the tuple as the static input and store it in a variable.
gvntupl = ('hello', 'this', 'is', 'this', 'python', 'programs')
# Give the element whose index must be located in the given tuple
# and store it in another variable.
gvnele = 'this'
# Pass the given element to the index function for the given tuple
# and store the result in resltind variable.
# searching the element after 1 st index by passing second argument as 1
resltind = gvntupl.index(gvnele, 1)
# Print the resltind value.
print('The given element {', gvnele, '} in the given tuple',
      gvntupl, 'is present at the index :')
print(resltind)

Output:

The given element { this } in the given tuple ('hello', 'this', 'is', 'this', 'python', 'programs') is present at the index :
1
Example-4: Giving Start and End Index

Below is the implementation:

# Give the tuple as the static input and store it in a variable.
gvntupl = ('hello', 'this', 'is', 'this', 'python', 'programs')
# Give the element whose index must be located in the given tuple
# and store it in another variable.
gvnele = 'hello'
# Pass the given element to the index function for the given tuple
# and store the result in resltind variable.
# searching the element after 1 st index to 3 index  by passing
# second argument as 1 and third argument as 3
resltind = gvntupl.index(gvnele, 1, 3)
# Print the resltind value.
print('The given element {', gvnele, '} in the given tuple',
      gvntupl, 'is present at the index :')
print(resltind)

Output:

Traceback (most recent call last):
  File "/home/0eabc1fa82ac939d529fa63ad0fd9be6.py", line 10, in <module>
    resltind = gvntupl.index(gvnele, 1, 3)
ValueError: tuple.index(x): x not in tuple

Explanation:

The element hello is present at the 0th index but not between the indices, resulting in an error.

Method #2: Using Built-in Functions (User Input)

Approach:

  • Give the Tuple as user input using tuple(),map(),input(),and split() functions.
  • Store it in a variable.
  • Give the element whose index must be located in the given Tuple as user input using the input() function and store it in another variable.
  • Pass the given element to the index function for the given Tuple and store the result in resltind variable.
  • Print the resltind value.
  • The Exit of the Program.

Below is the implementation:

# Give the Integer tuple as user input using tuple (),map(),input(),and split() functions.
# Store it in a variable.
gvntupl = tuple(map(int, input('Enter some random tuple elements = ').split()))
# Give the element as user input using the int(), input() functions,
# and store it in another variable.
gvnele = int(input('Enter some random element = '))
# Pass the given element to the index function for the given tuple
# and store the result in resltind variable.
resltind = gvntupl.index(gvnele)
# Print the resltind value.
print('The given element {', gvnele, '} in the given tuple',
      gvntupl, 'is present at the index :')
print(resltind)

Output:

Enter some random tuple elements = 4 1 7 8 3 11 7 3
Enter some random element = 3
The given element { 3 } in the given tuple (4, 1, 7, 8, 3, 11, 7, 3) is present at the index :
4

Find a Comprehensive Collection of Python Built in Functions that you need to be aware of and use them as a part of your program.