# 13/19 Syntax Error

#1

from random import randint

board = []

for x in range(0, 5):
board.append(["O"] * 5)

def print_board(board):
for row in board:
print " ".join(row)

print_board(board)

def random_row(board):
return randint(0, len(board) - 1)

def random_col(board):
return randint(0, len(board[0]) - 1)

ship_row = random_row(board)
ship_col = random_col(board)
guess_row = int(raw_input("Guess Row:"))
guess_col = int(raw_input("Guess Col:"))

print ship_row
print ship_col

if guess_row == ship_row and guess_col == ship_col:
print "Congratulations! You sank my battleship!"
board[guess_row][guess_col] = "X"
print print_board(board)
else:
if guess_row not in range(5) or guess_col not in range(5):
print "Oops, that's not even in the ocean."
else:
print "You missed my battleship!"
board[guess_row][guess_col] = "X"
print print_board(board)
elif board[guess_row][guess_col] == "X":
print "You guessed that one already."
Error:
File "python", line 40
elif board[guess_row][guess_col] = "X":
^
SyntaxError: invalid syntax

#2

from random import randint

board = []

for x in range(0, 5):
board.append(["O"] * 5)

def print_board(board):
for row in board:
print " ".join(row)

print_board(board)

def random_row(board):
return randint(0, len(board) - 1)

def random_col(board):
return randint(0, len(board[0]) - 1)

ship_row = random_row(board)
ship_col = random_col(board)

guess_row = int(raw_input("Guess Row:"))
guess_col = int(raw_input("Guess Col:"))

print ship_row
print ship_col

if guess_row == ship_row and guess_col==ship_col:
print "Congratulations! You sank my battleship!"
else:
if guess_row not in range(5) or guess_col not in range(5):
print "Oops, that's not even in the ocean."
elif(board[guess_row][guess_col] == "X") :
print "You guessed that one already."
else:
print "You missed my Battleship!"
board[guess_row][guess_col] = "X"

Please modify your elif statement. elif means "else if ". That means you can use "elif" after an if statement only . Please see your code you are using "elif" after an "else" statement

else:
print "You missed my battleship!"
board[guess_row][guess_col] = "X"
print print_board(board)
elif board[guess_row][guess_col] == "X":
print "You guessed that one already."
Error:
File "python", line 40
elif board[guess_row][guess_col] = "X":
^
SyntaxError: invalid syntax

#3

Given the presentation of the OP, it is difficult enough to zero in on a problem, but the replied solution is just as perplexing. Does anybody see anything wrong in this thread, apar from that it is unreadable Python code?

#4

don't you need to use == before the "X", not just one =

#5

In one line we are comparing, so would use `==`. In the other line we are assigning, so would use `=`. We must consider the role of the statement and then choose the operator for that role.