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Pairwise Addition in Tuples in Python
If it is required to perform pairwise addition in tuples, then the 'zip' method, the 'tuple' method and a generator expression can be used.
The zip method takes iterables, aggregates them into a tuple, and returns it as the result.
Generator is a simple way of creating iterators. It automatically implements a class with '__iter__()' and '__next__()' methods and keeps track of the internal states, as well as raises 'StopIteration' exception when no values are present that could be returned.
The 'tuple' method converts a given iterable into tuple data type.
Below is a demonstration of the same −
Example
my_tuple = ( 67, 45, 34, 56, 99, 123, 0, 56)
print ("The tuple is : " )
print(my_tuple)
my_result = tuple(i + j for i, j in zip(my_tuple, my_tuple[1:]))
print ("The tuple after addition is : " )
print(my_result)Output
The tuple is : (67, 45, 34, 56, 99, 123, 0, 56) The tuple after addition is : (112, 79, 90, 155, 222, 123, 56)
Explanation
- A tuple is created, and is displayed on the console.
- The tuple and the same tuple excluding the first element is zipped, using the 'zip' method and is iterated over, using generator expression.
- This is converted into a tuple, and this data is assigned to a variable.
- This variable is displayed as the output on the console.
Updated on: 11-Mar-2021
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