Q:

Python | Rear elements from Tuple Strings

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mahmoud2506
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2022-05-23
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Example:

tuple = ("python", "includehelp", 43, 54.23)

Extracting rear elements from tuple String

In this program, we have a tuple with string elements. And we need to create a python program to extract all elements from the tuple of string elements.

Input:
("python", "learn", "includehelp")

Output:
["n", "n", "p"]
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mahmoud2506
2022-05-23
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Method 1:

One simple way to solve the problem is by traversing the tuple and then for each string element extract the (n-1)th index value. This is done in a string line of code using list comprehension.

# Python Program to extract rear elements 
# from the tuple string 

# Creating and printing tuple string 
myTuple = ("python", "learn", "includehelp")
print("The elements of the tuple string are : " + str(myTuple))

# Extracting the last element from each 
# string element of the tuple
rearEleList = list(val[len(val) - 1] for val in myTuple)

# Printing the element list
print("The rear elements of each string from the tuple : " + str(rearEleList))

Output:

The elements of the tuple string are : ('python', 'learn', 'includehelp')
The rear elements of each string from the tuple : ['n', 'n', 'p']

Method 2:

Another method to perform the task is by directly using a loop to iterate over each element of the tuple. For each string of the tuple, extract the rear element i.e. element at (n-1)th index.

# Python program to extract rear elements 
# from the tuple string 

# Creating and printing tuple string 
myTuple = ("python", "learn", "includehelp")
print("The elements of the tuple string are : " + str(myTuple))

# Extracting the last element from the 
# each string element of the tuple
rearEleList = []
for strVal in myTuple :
    N = len(strVal) - 1 
    rearEleList.append(strVal[N])

# Printing the element list
print("The rear elements of each string from the tuple : " + str(rearEleList))

Output:

The elements of the tuple string are : ('python', 'learn', 'includehelp')
The rear elements of each string from the tuple : ['n', 'n', 'p']

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