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Typecasting to list can be done by simply using list(set_name) . Using sorted() function will convert the set into list in a defined order. The only drawback of this method is that the elements of the set need to be sortable.
Python list method list() takes sequence types and converts them to lists. This is used to convert a given tuple into list. Note − Tuple are very similar to lists with only difference that element values of a tuple can not be changed and tuple elements are put between parentheses instead of square bracket.
Modifying a set in PythonWe cannot access or change an element of a set using indexing or slicing. Set data type does not support it. We can add a single element using the add() method, and multiple elements using the update() method. The update() method can take tuples, lists, strings or other sets as its argument.
It is already a list:
>>> type(my_set)
<class 'list'>
Do you want something like:
>>> my_set = set([1, 2, 3, 4])
>>> my_list = list(my_set)
>>> print(my_list)
[1, 2, 3, 4]
EDIT: Output of your last comment:
>>> my_list = [1,2,3,4]
>>> my_set = set(my_list)
>>> my_new_list = list(my_set)
>>> print(my_new_list)
[1, 2, 3, 4]
I'm wondering if you did something like this:
>>> set = set()
>>> set([1, 2])
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'set' object is not callable
Instead of:
first_list = [1,2,3,4]
my_set=set(first_list)
my_list = list(my_set)
Why not shortcut the process:
my_list = list(set([1,2,3,4])
This will remove the dupes from you list and return a list back to you.
[EDITED] It's seems you earlier have redefined "list", using it as a variable name, like this:
list = set([1,2,3,4]) # oops
#...
first_list = [1,2,3,4]
my_set=set(first_list)
my_list = list(my_set)
And you'l get
Traceback (most recent call last):
File "<console>", line 1, in <module>
TypeError: 'set' object is not callable
Whenever you are stuck in such type of problems, try to find the datatype of the element you want to convert first by using :
type(my_set)
Then, Use:
list(my_set)
to convert it to a list. You can use the newly built list like any normal list in python now.
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