How do you remove duplicates from a list in Python whilst preserving order?

How do you remove duplicates from a list in Python whilst preserving order?



1.How do you remove duplicates from a list in Python whilst ...

Description:I think if you wanna maintain the order, you can try this:
list1 = ['b','c','d','b','c','a','a'] list2 = list(set(list1))
list2.sort(key=list1.index) print list2



2.How to remove an element from a list by index in Python ...

Description:How to remove an element from a list by index in Python? I
found the list.remove method but say I want to remove the last element,
how do I do this?



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