****Python Please***

#Earlier in the course, you implemented a function that could #find if someone had won a particular game of either tic-tac- #toe or mancala based on a 2D list or tuple representing the #current game board. # #In this problem, you'll do the same thing, but for the game #Connect 4. Write a function called check_winner which takes #as input a 2D list. It should return "X" if there are four #adjacent "X" values anywhere in the list (row, column, #diagonal); "O" if there are four adjacent "O" values #anywhere in the list; and None if there are neither. # #Here are the ways Connect-4 is different from tic-tac-toe: # # - Connect-4 is played with 6 rows and 7 columns, not 3 # rows and 3 columns. # - You must have 4 in a row (or column or diagonal) to win # instead of 3. # - You may only place pieces in the bottom-most empty # space in a column (e.g. you "drop" the pieces in the # column and they fall to the first empty spot). Note, # though, that this shouldn't affect your reasoning. # #To keep things simple, we'll still use "X" and "O" to #represent the players, and None to represent empty spots. #You may assume there will be only one winner per board, #no characters besides "X", "O", and None, and you don't #have to worry about whether the board is actually a #valid game of Connect 4. # #Hints: # - Don't forget both kinds of diagonals, top-left to # bottom-right and bottom-left to top-right. # - This board is too large to check every possible place # for a winner: there are 69 places a player could win. # - Remember, if you put a negative index in a list, # Python "wraps around" and checks the last value. You # may have to control for this.

#Write your function here!

#The code below tests your function on three Connect-4 #boards. Remember, the line breaks are not needed to create #a 2D tuple; they're used here just for readability. xwins = ((None, None, None, None, None, None, None), (None, None, None, None, None, None, None), (None, None, None, None, "X" , None, None), (None, None, None, "X" , "O" , "O", None), (None, "O" , "X" , "X" , "O" , "X", None), ("O" , "X" , "O" , "O" , "O" , "X" , "X")) owins = ((None, None, None, None, None, None, None), (None, None, None, None, None, None, None), ("O" , "O" , "O" , "O" , None, None, None), ("O" , "X" , "X" , "X" , None, None, None), ("X" , "X" , "X" , "O" , "X" , None, None), ("X" , "O" , "O" , "X" , "O" , None, None)) nowins =(("X" , "X" , None, None, None, None, None), ("O" , "O" , None, None, None, None, None), ("O" , "X" , "O" , "O" , None, "O" , "O" ), ("O" , "X" , "X" , "X" , None, "X" , "X" ), ("X" , "X" , "X" , "O" , "X" , "X" , "O" ), ("X" , "O" , "O" , "X" , "O" , "X" , "O" )) print(check_winner(xwins)) print(check_winner(owins)) print(check_winner(nowins))