List is printing oddly in python?

Question

so I am trying to make tictactoe and i'm having trouble with the board. when I make 3 list of the 1-9 spots they print out as a whole list including the brackets and commas, for example ex = [1, 2] and it would print that full thing. I've never had this problem before. Can anyone help and is it because im using an Online IDE because of chromebook? Thanks :)

board1 = ["|1|", "2|", "3|"]
board2 = ["|4|", "5|", "6|"]
board3 = ["|7|", "8|", "9|"]
print(board1)
print(board2)
print(board3)

#Output
'|1|', '2|', '3|']
['|4|', '5|', '6|']
['|7|', '8|', '9|']

That's *always* how a list is printed... so no, it's not because it's an online ide. — juanpa.arrivillaga, May 05 '17 at 17:37
_" I've never had this problem before."_ That's interesting. Can you provide an example of code you're written where printing a list _doesn't_ display brackets or commas? (note that `for item in mylist: print(item)` doesn't count as printing a list) — Kevin, May 05 '17 at 17:38
Printing a list will **always** do that. You should print each item separately or better, use `.join()`. — Juan T, May 05 '17 at 17:38
I think the issue is the missing start bracket. Do you print something before that? If an errant control code got in there, it may swallow the bracket. — tdelaney, May 05 '17 at 17:45
Assuming this is the full program, It may well be due to the online IDE. Does the IDE try to color the output? — tdelaney, May 05 '17 at 17:51
I'm confused. Can you clarify whether the problem is with that first bracket not printing? — tdelaney, May 05 '17 at 18:38

score 1 · Answer 1 · answered May 05 '17 at 17:40

1

Printing a list will always show the commas and brackets.

I think you might be looking for the following:

print(''.join(board1))
print(''.join(board2))
print(''.join(board3))

That will give you the following:

|1|2|3|
|4|5|6|
|7|8|9|

answered May 05 '17 at 17:40

Eric Bulloch

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6
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Or since the OP has this tagged as 3.x: `print(*board1, sep='')` etc... – Jon Clements May 05 '17 at 17:41
This question is technically a duplicate... you should be flagging this question instead of answering it – Krupip May 05 '17 at 17:42
@JonClements - `sep='|'` ? – tdelaney May 05 '17 at 17:42
@tdelaney if the `|`s weren't already in the text and they were supposed to be the separator - then yes. That doesn't seem to be the case here though... – Jon Clements May 05 '17 at 17:43
@JonClements - yeah, brain hemorrhage on my part. I was thinking in terms of removing the bars from the original list completely. – tdelaney May 05 '17 at 17:44

score 0 · Answer 2 · answered May 05 '17 at 17:48

0

I would use:

board = [['1','2','3'],
         ['4','5','6'],
         ['7','8','9']]

for x in board: print('|%s|'%'|'.join(x))

Returning

|1|2|3|
|4|5|6|
|7|8|9|

answered May 05 '17 at 17:48

Juan T

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1
10
21

OP's problem is that the open bracket is missing on the output. – tdelaney May 05 '17 at 18:01
That open bracket is probably a typo. – Juan T May 05 '17 at 18:35

List is printing oddly in python?

2 Answers2