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Python program to Flatten Nested List to Tuple List
When it is required to flatten a nested list into a tuple list, a method is defined that takes a list as a parameter, and uses the ‘isinstance’ method to check if an element belongs to a specific type. Depending on this, the output is displayed.
Example
Below is a demonstration of the same
def convert_nested_tuple(my_list):
for elem in my_list:
if isinstance(elem, list):
convert_nested_tuple(elem)
else:
my_result.append(elem)
return my_result
my_list = [[[(3, 62)]], [[[(57, 49)]]], [[[[(12, 99)]]]]]
print("The list is :")
print(my_list)
my_result = []
my_result = convert_nested_tuple(my_list)
print("The list is :")
print(my_result)Output
The list is : [[[(3, 62)]], [[[(57, 49)]]], [[[[(12, 99)]]]]] The list is : [(3, 62), (57, 49), (12, 99)]
Explanation
A method named ‘convert_nested_tuple’ is defined that takes a list as a parameter.
The list elements are iterated over.
The ‘isinstance’ method is used to check if every element in the nested list belong to list type.
If yes, the method is called.
Otherwise, the element is appended to an empty list.
This is returned as result.
Outside the method, a nested list of tuple is defined and displayed on the console.
An empty list is defined.
The method is called by passing the previous list of tuple as a parameter.
The output is displayed on the console.
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