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Python Python Basics (2015) Python Data Types List cleanup

Posted by Yasser Shaaf
.a{fill-rule:evenodd;}techdegree
Yasser Shaaf
UX Design Techdegree Student 13,865 Points

messy = [5, 2, 8, 1, 3] del = (8) what it is incorrect

messy = [5, 2, 8, 1, 3] del = (8) what it is incorrect

2 Answers

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,457 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points

del is a built-in function to delete an object directly

messy = [5, 2, 8, 1, 3]
# delete item at index 2 from messy
del messy[2]

There is a list method .remove() that removes a item from a list:

>>> messy = [5, 2, 8, 1, 3]
>>> messy.remove(8)
>>> messy
[5, 2, 1, 3]
mohammed alali
mohammed alali
3,415 Points

why its give Oops! It looks like Task 1 is no longer passing.

Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points

Mohammed, "Task 1 no longer passing" usually means mans a syntax error was introduced.

Don't include the ">>>" in your submitted code. It is output from the interactive Python shell.

mohammed alali
mohammed alali
3,415 Points

it's still give task one is no longer passing this code is correct or not :

del messy[2]
messy.remove(8)
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points

Mohammed, after del messy[2] is executed there is no longer an "8" in the list to remove. This causes the remove() to raise an error.

Additionally, task 2 in the challenge asks to use del instead of remove.

Yasser Shaaf
seal-mask
.a{fill-rule:evenodd;}techdegree
Yasser Shaaf
UX Design Techdegree Student 13,865 Points
Yasser Shaaf
.a{fill-rule:evenodd;}techdegree
Yasser Shaaf
UX Design Techdegree Student 13,865 Points

Thank you so much , I really struggle with python , have you experienced this struggle ?

Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points

Early on, there are a lot of idioms to absorb, but keep at it. It doesn't take long to develop a good base understanding of the language which will allow you to work on more advanced topics soon.

One aspect to keep in mind is "everything in Python is an object". Soon you will start to see each object and how it's methods work to modify the object. The more you work with string, lists, dictionaries, the more the object viewpoint makes sense. Then you'll be ready for functions and classes! Keep at it! You'll get it!