Split elements by \n inside a list [duplicate]

Question

I have this list:

test_results = ['Test1\nTest2', 'Grade A\nGrade B']

I want to split the elements by the '\n' and save them in another list, like this:

test_results = [['Test 1, Grade A'], ['Test B', 'Grade B']]

I am struggling to find a way to do it... can you help me?

test_results = [i.split('\n') for i in test_results] would be a starting point. You also probably want to look at zip for rotating the resulting list of lists. — Samwise
– Samwise, Commented Apr 23, 2021 at 18:05
This (at least the 1st part of it) can be achieved in one line using docs.python.org/3/tutorial/…. — CristiFati
– CristiFati, Commented Apr 23, 2021 at 18:06

ThePyGuy · Accepted Answer · 2021-04-23 18:27:12Z

2

You can use map with str.splitlines

>>> x = list(map(str.splitlines, test_results)) >>> x [['Test1', 'Test2'], ['Grade A', 'Grade B']]

Now you can use zip to get what you exactly want:

>>> [[a,b] for a,b in zip(x[0], x[1])] [['Test1', 'Grade A'], ['Test2', 'Grade B']]

edited Apr 23, 2021 at 18:27

answered Apr 23, 2021 at 18:10

ThePyGuy

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2 Comments

ThePyGuy Over a year ago

Thanks for letting me know, I did not take close look to that, I'll update the answer

ThePyGuy Over a year ago

@ChihebNexus, I think it matches the expected output now

Thavas Antonio · Accepted Answer · 2021-04-23 18:07:52Z

1

You could use splitlines.

y = [x.splitlines() for x in test_results]

output

[['Test1', 'Test2'], ['Grade A', 'Grade B']]

answered Apr 23, 2021 at 18:07

Thavas Antonio

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2 Comments

Chiheb Nexus Over a year ago

PO is searching for this output: [['Test 1, Grade A'], ['Test B', 'Grade B']]

Thavas Antonio Over a year ago

That's for sure a typo. Why would user want that?

Dugbug · Accepted Answer · 2021-04-23 18:11:06Z

There are many 1-liners, but this might be the easiest to understand

def split_list(list): for string in list: # For each string in my list list[list.index(string)] = string.split( "\n") # Splitting the string a "\n" return test_results test_results = ['Test1\nTest2', 'Grade A\nGrade B'] print(split_list(test_results))

Your output is wrong. PO is searching for this output: [['Test 1, Grade A'], ['Test B', 'Grade B']]

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