import os
class Grid():
    def __init__(self,width,height,cw=3,sep=None):
        self.grid = []
        self.cell_width = cw
        self.sep = sep
        self.force_cls = False
        for i in range(height):
            self.grid.append([])
            for n in range(width):
                self.grid[i].append(" ")
    def put(self,y,x,char):
        #print(y,' ',x)
        self.grid[y][x] = char
  
    def fill(self,char):
        for i in range(len(self.grid)):
            for n in range(len(self.grid[i])):
                self.grid[i][n] = char
    def update(self):
        if self.force_cls:
            os.system("cls")
        for i in self.grid:
            line_str = ""
            for x in i:
                line_str += x
                if x == "":
                    x = " "
                if len(x) < self.cell_width:
                    d = self.cell_width - len(x)
                    for k in range(d):
                        line_str += " "
                if self.sep != None:
                    line_str += self.sep
            print line_str#("").join(i)