How to remove extra levels in list
88405
Flatten command: matrix as second argument
115991
Removing duplicates from a list of lists
21099
How to Delete Elements from List1 appearing in List2?
38135
Remove top and bottom margin in tabular (around lists)
31062
Elegant way to remove items from sequence in Python?
153925
extra empty element when removing an element from a tuple
130346
How do I delete all items that occur more than once?
135201
How can I change a list to a sequence without destroying nested list
123813
A better way to do nested lists
123733
How to remove these pesky extra spaces
1319
Flattening a shallow list in Python
131375
Remove particularly tricky items from context menu
135659
How to remove indentation from an unordered list item?
77500
How to remove repeated permutations?
76455
Remove items from one list in another
36636
list management, deletion of duplicates
43239
What is the best way to modify a list in a 'foreach' loop?