#🔒 error correction

38 messages · Page 1 of 1 (latest)

agile bolt
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doing an assignment in trying to find errors

def main():
task_list: list[str] = []
task_list.append("Complete Task 5.3PP")
task_list.append("Watch 'The Holy Grail'")
task_list.append("Write more Python")

print(f"You have {len(task_list)} tasks on your list:")
for i in range(len(task_list)):
print(f"{i+1}. {task_list[i+1]}")

is the reason this not running because its trying to take 1 extra then is actually in the list

hexed belfryBOT
#

@agile bolt

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agile bolt
#

just want to make sure but

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for example there is 3 things in the list here

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but its trying to take from the 4th place

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technically 2 things cause 0, 1, 2 but

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is this correct?

rocky bronze
#

i could be wrong but i think you have to have a starting index and ending index when using range()

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ah nm guess not

agile bolt
#

not sure honestly in my head its like

if you have 3 boxes the code is trying to take an item from the 4th box but there isn't a 4th box so its throwing an error my way

dire ferry
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range(len(task_list)) will count starting with 1

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While index numbers starts at 0

agile bolt
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is that something specific to "range"

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like it always starts at 1

dire ferry
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No it's len()

agile bolt
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oh

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its throwing an error on the line afterwards though so maybe they're both wrong

dire ferry
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I think I explained it a bit badly, but you are trying to get one more item than you have available

agile bolt
#

nah that makes sense

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thank you

dire ferry
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It is the +1 part

agile bolt
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so if i get rid of that it fixes it

neat shore
#

yes

dire ferry
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But are you familiar with enumerate()?

agile bolt
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its meant to be wrong so we can fix it

dire ferry
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for idx, item in enumerate(task_list, start=1):
    print(f"{idx}. {item}")
dire ferry
agile bolt
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fair point

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so this lets you start specifically at a certain part in the list?

stoic hornet
dire ferry
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Each iteration will give you back index number in the list, and the object.
The start=1 argument adds 1 to each index number

stoic hornet
#

The problem is in task_list[i+1]

dire ferry
#

We came to that in the end too, good you point it out

dire ferry
agile bolt
#

!close

hexed belfryBOT
#
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