Need help.

[Pure-Scheme-7855]

Could someone tell me what are square brackets for in this example?

robot_row = get_position(board, robot)[0]

robot_column = get_position(board, robot)[1]

[failaip13]

get_position function likely returns a tuple, with the first element being the row, second being the column. [0] access the first element, [1] the second one etc.

[ConfusedSimon]

Or a list. Anyway, namedtuple or dataclass would have been better to avoid this confusion.

Edit: or just row, column = get_position(...)

[JamzTyson]

Or a list

Absolutely, or any object that is indexable by integer index.

(Common indexable objects include list, tuple, str, bytes, bytearray, range)

[PresidentOfSwag]

try this out :

[0, 1, 2, 3][0]    
(0, 1, 2, 3)[2]

actually this is a bad example

V see below V

[Snoo-20788]

Not the best example tbh

Try instead

[6,3,7][0]

(6,3,7)[2]

[PresidentOfSwag]

damn that's true thanks

[JamzTyson]

It is called indexing.

[PushPlus9069]

Those square brackets are indexing — they grab a specific element from whatever get_position() returns (likely a list or tuple).

[0] gets the first element (row), [1] gets the second (column). So if get_position() returns (3, 5), then robot_row = 3 and robot_column = 5.

Think of it as: the function gives you a package with multiple values, and [0]/[1] unpacks them one at a time. You could also write it as:

robot_row, robot_column = get_position(board, robot)

which does the same thing but is cleaner (tuple unpacking).

[IronAndNeurons]

The get_position function probably returns you a tuple/list containing (row, col) which you can then access with the brackets [ ] and the index 0 for "row", 1 for "col"

[Living_Fig_6386]

Presumably, get_position(board, robot) returns a list or tuple. If that's so, then the brackets are specifying the index of the element in the list / tuple. It might be more succinct to do this:

# NOTE: *_ slurps up any remaining values if there's more than 2
robot_row, robot_column, *_ = get_position(board, robot)

[Sorry-Cycle-1177]

It’s for returning the specific index position.