recursion - Cascading reveal in Python Minesweeper -

i working on recursive function reveal contents of spaces around zero. getting type error "typeerror: unsupported operand type(s) -: 'list' , 'int'" code. want code (when given location) reveal spaces around not mines until there number.

import sys game import *  gameio import * import random   rows = int(sys.argv[1]) cols = int(sys.argv[2]) mines = int(sys.argv[3])  def main():     mat = buildmatrix(rows,cols)     status = buildmatrix(rows,cols)     minematrix = placemines(mat)     smatrix = processmatrix(minematrix)     print("here minefield: ")     displayboard(smatrix,status)     array = [int(i) in input("enter row , column: ").split()]     first = uncover(status,smatrix,array)     displayboard(smatrix,status)     return  main()  def minecascade(m,mat,r,c):     if (mat[r][c] == '&'):         if (m[r][c] == '*'):             return         elif (m[r][c] == 0):             if (r > 0) , (c > 0):                 if (mat[r-1][c-1] != '&'):                     mat[r-1][c-1] = '&'                     = r-1                     b = c-1                     1 = minecascade(m,mat,a,b)             else:                 return m[r-1][c-1]             if (r > 0):                 if (mat[r-1][c] != '&'):                     mat[r-1][c] = '&'                     d = r-1                     2 = minecascade(m,mat,d,c)             else:                 return m[r-1][c]             if (r > 0) , (c < len(m[0]-1)):                 if (mat[r-1][c+1] != '&'):                     mat[r-1][c+1] = '&'                     e  = r-1                     f = c+1                     3 = minecascade(m,mat,e,f)             else:                 return m[r-1][c+1]             if (c > 0):                 if (mat[r][c-1] != '&'):                     mat[r][c-1] = '&'                     g = c-1                     4 = minecascade(m,mat,r,g)             else:                 return m[r][c-1]             if (c < len(m[0])-1):                 if (mat[r][c+1] != '&'):                     mat[r][c+1] = '&'                     h = c+1                     5 = minecascade(m,mat,r,h)             else:                 return m[r][c+1]             if (r < len(m)-1) , (c > 0):                 if (mat[r+1][c-1] != '&'):                     mat[r+1][c-1] = '&'                     = r+1                     j = c-1                     6 = minecascade(m,mat,i,j)             else:                 return m[r+1][c-1]             if (r < len(m)-1):                 if (mat[r+1][c] != '&'):                     mat[r+1][c] = '&'                     k = r+1                     7 = minecascade(m,mat,k,c)             else:                 return m[r+1][c]             if (r < len(m)-1) , (c < len(m[0])-1):                 if (mat[r+1][c+1] != '&'):                     mat[r+1][c+1] = '&'                     l = r+1                     n = c+1                     8 = minecascade(m,mat,l,n)             else:                 return m[r+1][c+1]     else:         return  def uncover(m,mat,array):     m[array[0]][array[1]] = '&'     1 = int(array[0])     2 = int(array[1])     minecascade(mat,m,one,two)     return m[array[0]][array[1]]  def numbermines(m,r,c):     count = 0     if (r > 0) , (c > 0) , (m[r-1][c-1] == '*'):         count += 1     if (r > 0) , (m[r-1][c] == '*'):         count += 1     if (r > 0) , (c < len(m[0])-1) , (m[r-1][c+1] == '*'):         count += 1     if (c > 0) , (m[r][c-1] == '*'):         count += 1     if (c < len(m[0])-1) , (m[r][c+1] == '*'):         count += 1     if (r < len(m)-1) , (c > 0) , (m[r+1][c-1] == '*'):         count += 1     if (r < len(m)-1) , (m[r+1][c] == '*'):         count += 1     if (r < len(m)-1) , (c < len(m[0])-1) , (m[r+1][c+1] == '*'):         count += 1     return count  def processmatrix(mat):     row = len(mat)     col = len(mat[0])     r in range(row):         c in range(col):            if (mat[r][c] != '*'):                 new = numbermines(mat,r,c)                 mat[r][c] = new     return mat  def placemines(mat):     in range(mines):         mrow = random.randint(0,(rows)-1)         mcol = random.randint(0,(cols)-1)         if (mat[mrow][mcol] != '*'):             if (mrow < rows) , (mcol < cols):                  mat[mrow][mcol] = '*'         else:             return mat     return mat  def printmatrix(m,mat):     rows = len(m)     cols = len(m[0])     in range(0,rows,1):         j in range(0,cols,1):             if (mat[i][j] == '&'):                 if (m[i][j] == 0):                     print('[',' ',']',sep = "", end = " ")                 else:                     print('[',m[i][j],']',sep = "", end = " ")             else:                 print('[',mat[i][j],']',sep = "", end = " ")         print()     return  def buildmatrix(rows,cols):     mat = []     in range(0,rows,1):         mat += [buildrow(cols)]     return mat  def buildrow(cols):     row = []     in range(0,cols,1):         row += ['-']     return row  def displayboard(m,mat):     rows = len(m)     cols = len(m[0])     in range(0,rows,1):         j in range(0,cols,1):             if (mat[i][j] == '&'):                 if (m[i][j] == 0):                     print('[',' ',']',sep = "", end = " ")                 else:                     print('[',m[i][j],']',sep = "", end = " ")             else:                 print('[',mat[i][j],']',sep = "", end = " ")         print()     return  error: traceback (most recent call last):   file "level3.py", line 21, in <module>     main()       file "level3.py", line 17, in main     first = uncover(status,smatrix,array)   file line 81, in uncover     minecascade(mat,m,one,two)   file line 19, in minecascade     1 = minecascade(m,mat,a,b)   file line 19, in minecascade     1 = minecascade(m,mat,a,b)   file line 19, in minecascade     1 = minecascade(m,mat,a,b)   file line 26, in minecascade     2 = minecascade(m,mat,d,c)   file line 26, in minecascade     2 = minecascade(m,mat,d,c)   file line 19, in minecascade     1 = minecascade(m,mat,a,b)   file line 19, in minecascade     1 = minecascade(m,mat,a,b)   file line 29, in minecascade     if (r > 0) , (c < len(m[0]-1)): typeerror: unsupported operand type(s) -: 'list' , 'int' 

in function minecascade, you've syntax error, around line 29, traceback suggests. change

if (r > 0) , (c < len(m[0]-1)): 

to

if (r > 0) , (c < len(m[0])-1): 

lots of parentheses unnecessary due operator precedence, , can simplified to:

if r > 0 , c < len(m[0]) - 1: 

the redundant parentheses hid error you.