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Python Python Collections (2016, retired 2019) Lists Removing items from a list

Great! Now use .remove() and/or del to remove the string, the boolean, and the list from inside of messy_list. When you'

How do i delete the list in the list ?!

lists.py
messy_list = ["a", 2, 3, 1, False, [1, 2, 3]]
messy_list.pop(3)
messy_list.insert(0, 1)
messy_list.remove("a")
messy_list.remove(False)
del messy_list[5,6,7]
Enzie Riddle
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Enzie Riddle
Front End Web Development Techdegree Graduate 19,278 Points

Ah you are so close! Remember that when you use the del keyword that you must use the item's index to delete it. Since you have already been using the remove method, I recommend you stick with it, but you definitely can complete it either way! Here's an example. Comment back if you're still having trouble!

items = ["apples", 1, "green", True]
del variable[index]
#run the program
items
['apples', 'green', True]

4 Answers

Eric Fernandez
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Eric Fernandez
Python Development Techdegree Student 3,008 Points

Is there a better way of doing this

 if "a" in messy_list:
    messy_list.remove("a")
if False in messy_list:
    messy_list.remove(False)
if [1,2,3] in  messy_list:
    del messy_list[3] 
messy_list.remove("a")
messy_list.remove(False)
messy_list.remove([1, 2, 3])
David Toops
David Toops
19,313 Points

Here is a more general way to remove non-integer items from an arbitrary list:

for item in messy_list[::-1]: if isinstance(item,int): if isinstance(item,bool): messy_list.remove(item) else: messy_list.remove(item)