Expected Behavior

Write a function grid$\_$is$\_$square$($arglist$),$ where arglist is a list of lists, that returns True if arglist has the shape of a square grid, i$.$e$.,$ if the length of each element $($i$.$e$.,$ "row"$)$ of arglist is equal to the number of rows of arglist; and False otherwise.

You can assume that arglist is a list of lists, and do not have to check this.

Examples

grid$\_$is$\_$square$([[1,2],[3,4]])$

return value: True

grid$\_$is$\_$square$([[0,1,2],[3,4]])$

return value: False

grid$\_$is$\_$square$([[0,1,2,3,4],[3,4,5,6,7],[4,5,6,7,8]])$

return value: False

grid$\_$is$\_$square$([[1]])$

return value: True

grid$\_$is$\_$square$([[1,2,3],[3,4,5],[5,6,7]])$

return value: True