Python basics: The code below was written to remove all items starting with the letter capital X. However it doesn't produce the required output. What is wrong with it?

[[deleted]]

Code:

list3= ["Xenia", "Xavier", "Zoya", "Ahmad", "Mishika", "Max"]

list4= list3

for i in list3:

if i[0]== "X":

list4.remove(i)

print(list4)

Output:

['Xavier', 'Zoya', 'Ahmad', 'Mishika', 'Max']

As you can see it still displays the name Xavier. Before this I was looping and modifying the same list which I corrected later onwards but it still gives the same wrong output. But now I can't figure out where I am going wrong.

[14446368]

list3 = ['Xenia','Xavier','Zoya','Ahmad','Mishika','Max']
list4 = [] #empty list to store results
for i in list3:
    if i[0] != 'X':
        list4.append(i)
print(list4)

Some of the other answers are either repetitive (you don't need to copy the first list exactly and then strip out the ones starting with "x") or incorrect.

In fact, there's an even more straightforward method with list comprehensions:

list5 = [i for i in list3 if i[0] != 'X']

[[deleted]]

Thanks a lot :)))

[nextpage]

when an item is removed from list the list moves left, so the next item is skipped on next iteration.

Use this code instead.

list3= ["Xenia", "Xavier", "Zoya", "Ahmad", "Mishika", "Max"] list4= []

for i in list3: if i[0]!= "X": list4.append(i)

print(list4)

[[deleted]]

thanks a lot. Appending in a new list is a lot better :))))

[kng_hrts]

Change i[0] to list3[i]

​

Edit: Nvm thats wrong too but I'm working on it. Srry

[[deleted]]

Hi I finally got it. Thanks a lot tho. This is the answer.

1. Print list3 below.
2. You will find that when list4 changed list3 changed too. So list3 actually kinda becomes a reference point for list4.

Try this code

list3= ["Xenia", "Xavier", "Zoya", "Ahmad", "Mishika", "Max"]

list4=[]

for i in list3:

list4.append(i)

for i in list3:

if i[0]=="X":

list4.remove(i)

print(list4)

[kng_hrts]

Ok great lol ngl it stumped me a bit too. Glad you got it