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Python Python Basics (2015) Python Data Types list.remove()

Jörg Graupeter
Jörg Graupeter
427 Points

how do I remove brakets inside brackets in a list?

see above

lists.py
states = [
    'ACTIVE',
    ['red', 'green', 'blue'],
    'CANCELLED',
    'FINISHED',
    5,
]
states.remove(5)
states.remove('red', 'green', 'blue')

1 Answer

Marek Zakrzewski
Marek Zakrzewski
2,920 Points

In this case, what you're trying to remove is a list within a list, so in order to remove it, you need to use the entire list, including brackets:

states.remove(['red', 'green', 'blue'])

If you don't include the brackets, the remove function will think that you're trying to paste 3 arguments into it, while you're just trying to remove an item which is an list, not 3 separate items.

From Python documentation:

list.remove(x)
#Remove the first item from the list whose value is x. It is an error if there is no such item.