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Python Python Collections (2016, retired 2019) Dungeon Game Line endings

Ashley Keeling
Ashley Keeling
11,476 Points
Posted by Ashley Keeling
Ashley Keeling
11,476 Points

I not sure how to make this work

I don't know how to replace '||' with \n

mapping.py 
TILES = ('-', ' ', '-', ' ', '-', '||',
         '_', '|', '_', '|', '_', '|', '||',
         '&', ' ', '_', ' ', '||',
         ' ', ' ', ' ', '^', ' ', '||'
)

for item in TILES:
    if item=='||':
        print("\n")

    print(TILES)
    break

3 Answers

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

Actually just printing an empty string will give you a newline.

The trick is when you don't want the newline you have to specify the "end" parameter as an empty string.

Ashley Keeling
Ashley Keeling
11,476 Points
Ashley Keeling
Ashley Keeling
11,476 Points

i have tried it as a empty string but I don't get what you mean by parameter

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

if you want to print the item without a newline:

    print(item, end="")
Ashley Keeling
Ashley Keeling
11,476 Points
Ashley Keeling
Ashley Keeling
11,476 Points

I have done that and it still isn't working thanks

for item in TILES:

if item=='||':

    print(item, start="")

print(TILES)
Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

But remember, when the item is '||' is when you do want a newline. You need an "else" condition for the other values. And the parameter that controls automatic newlines is "end", not "start".

And you probably will not want to print the entire "TILES" array at once.

Oszkár Fehér
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Oszkár Fehér
Treehouse Project Reviewer
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Oszkár Fehér
Treehouse Project Reviewer

Hi Ashley, Your for loop starts well, in the loop you have to check if the item it's not equal with '||'

for item in TILES:
    if item == '||':

Now you need to create to other variables, one which holds the end= attribute and an output attribute, both placed eventually in the print statement The end= attribute should hold a \n or an empty string

for item in TILES:
    if item == '||':
        new_line = '\n'
        output = ''
    else:
        new_line = ''
        output = item
    print(output, end=new_line)

This is little bit tricky but after the video it can be done. I hope this helped you to understand a little bit better. happy coding

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

Note: for this to work, the first line after "else" should be:

        new_line = ''

Also, the solution most students arrive at is a bit more conscise.

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Oszkár Fehér
Treehouse Project Reviewer
Oszkár Fehér
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Treehouse Project Reviewer

Hi Steven, Yes, you are right, it was a mistake, i should check better before saving the answer :)) Thank you.