How do I iterate through each element in a list to append a \n at the end of each line inserted?

Asked Dec 07 '21 at 18:00

Active Dec 07 '21 at 18:29

Viewed 39 times

Here is my current code:

contentList = ["First line", "Second line", "Third line", "Fourth line", "Fifth line"]

for item in contentList:
    contentList.append("\n")

newFile = open("output2.txt", "w")
newFile.write(cleartext2 + "\n")

In the current code above, I am attempting to go through each element to append a "\n" at the end of each line, then writing a new file called output2.txt and inputting the contentList 's content

Currently, the content of listContent are being imported to output2.txt in one line separated by commas outputted like this:

[First line, Second line, Third line, Fourth line, Fifth line]

My desired output would be:

[First line
Second line
Third line
Fourth line
Fifth line]

Anything would help!

edited Dec 07 '21 at 18:29

martineau

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asked Dec 07 '21 at 18:00

bbsmfb

To do what you want, you need to loop over each element in the list. – Code-Apprentice Dec 07 '21 at 18:01
@RandomDavis `listContent` is a list, not a string. – Code-Apprentice Dec 07 '21 at 18:02
1

If `listContent` is just one big string, why not just do `listContent.replace(',', '\n')`? – Random Davis Dec 07 '21 at 18:02
You could also fix the way you create `listContent`. – Barmar Dec 07 '21 at 18:03
1

@Code-Apprentice If it were a list, `listContent + "\n"` would not work. – Barmar Dec 07 '21 at 18:03
1

@Code-Apprentice but `write()` can only accept a `str` or a `bytes` object, so `listContent` must be one of those. The fact that `listContent + "\n"` works must mean it's a `str`. – Random Davis Dec 07 '21 at 18:04
It's not a string, no new line character is added in any of the elements – bbsmfb Dec 07 '21 at 18:09
When I open the text file, it's one string with all of the elements from listContents separated by comments – bbsmfb Dec 07 '21 at 18:09
@bbsmfb we're just talking about the variable `listContent`, sorry for the confusion. Did you try `outfile2.write(listContent.replace(',', '\n'))` yet? – Random Davis Dec 07 '21 at 18:25
Wow, it worked!!!! Thank you Random Davis. – bbsmfb Dec 07 '21 at 18:28
Thank you Code Apprentice and Random Davis for the collab and discussion! – bbsmfb Dec 07 '21 at 18:28
To understand why your original version doesn't work, look closely at the for loop. It think `contextList.append('\n')` doesn't do what you think it does. – Code-Apprentice Dec 07 '21 at 20:03

How do I iterate through each element in a list to append a \n at the end of each line inserted?

0 Answers0