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Python

Bethany Watson
Bethany Watson
2,618 Points
Posted by Bethany Watson
Bethany Watson
2,618 Points

Traceback: Name Error

I am getting this error. I researched the meaning of this and still not understanding what is wrong with line 20.

treehouse:~/workspace$ python linear_search.py                                                                 
Traceback (most recent call last):                                                                             
  File "linear_search.py", line 20, in <module>                                                                
    verify(result)                                                                                             
NameError: name 'verify' is not defined 

def linear_search(list, target):
    """
    Return the index position of the target if found, else returns None
    """

    for i in range(0, len(list)):
        if list[i] == target:
           return i
    return None

def verify(index):
    if index is not None:
        print("Target found at index: ", index)
    else:
        print("Target not found in list")

numbers = [1,2,3,4,5,6,7,8,9,10]

result = linear_search(numbers, 12)
verify(result)
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,974 Points

Could you format your code using markdown? Hard to tell what is going on otherwise.

1 Answer

Jeff Muday
MOD
Jeff Muday
Treehouse Moderator 28,731 Points
Jeff Muday
Jeff Muday
Treehouse Moderator 28,731 Points

Your code ran perfectly for me. There aren't any syntax or scoping errors.

I advise you save into another filename and try it again.

Here are my results below (with your unmodified code).

Keep up the good work!

treehouse:~/workspace$ ls                                                                              
linear_search.py  myproject                                                                            
treehouse:~/workspace$ python linear_search.py                                                         
Target not found in list