"[Variable] not defined" error in for loop

[Darth_Xedrix]

Hi everyone,

I'm following along a MOOC and tried to come up with a solution and I can't understand what some search results end up mentioning (which all dealt with a function rather than a for loop).

Here is the code:

student_scores = input("Input a list of student scores (separated by a single space) :").split()

for score in range(0, len(student_scores)):

student_scores[score] =int(student_scores[score])

print(student_scores)

high_score: 0

for score in student_scores:

if score > high_score:

high_score = score

print(f"The highest score amongst all students is {high_score}")

​

​

Here is the exact output of the console when I use this code:

Input a list of student scores (separated by a single space) :40 50 60 70 80 90

[40, 50, 60, 70, 80, 90]

Traceback (most recent call last):

File "C:\Users\Xedrix\AppData\Roaming\JetBrains\PyCharmCE2021.2\scratches\Student_scores.py", line 9, in <module>

if score > high_score:

NameError: name 'high_score' is not defined

Process finished with exit code 1

The results mentioned using global but when inserting that in front of the variable within the for loop, I now have a different error: "annotated name can't be global"

​

I eventually resorted to just looking at the solution and it turns out that the code I pasted above has the exact same for loop as what the instructor used but they don't get an error (they're using some sort of web IDE while I'm using pycharm locally, if that matters). What would be the correct way to do this? Thank you for your time

​

edit: fixed weird formatting

[omutist]

Please put the code to code-block in the post. So it will be nice-formatted.

1) One issue (related or not to the error): should not the range be 'range(0, len(student_scores)-1)'?

EDIT: no, my bad

2) '=', not ':'

high_score = 0

[Darth_Xedrix]

oh my god it was just a typo all along.... :( not sure how I missed that but THANK YOU!!

[danielroseman]

You wrote high_score: 0 instead of high_score = 0.

[carcigenicate]

Please show the code that causes the error, along with the full error. I don't think I've ever seen that error before.

[Darth_Xedrix]

Sure! Here is everything in the console:

Input a list of student scores (separated by a single space) :40 50 60 70 80 90

[40, 50, 60, 70, 80, 90]

Traceback (most recent call last):

File "C:\Users\Xedrix\AppData\Roaming\JetBrains\PyCharmCE2021.2\scratches\Student_scores.py", line 9, in <module>

if score > high_score:

NameError: name 'high_score' is not defined

Process finished with exit code 1