import Tkinter
import string

class table(Tkinter.Frame):
    data = []
    rows = 0
    columns = 0
    def add_row(self, index='end'):
        self.rows += 1
        row = []
        for i in range(0, self.cloumns):
            row.append(Tkinter.Entry(self))
            row[-1].grid(row=self.rows, column=i+1)
        if string.lower(index) == 'end':
            self.data.append(row)
        else:
            try:
                index = int(index)
            except:
                raise "Index must be an integer or 'END'"
            self.data.insert(index, row)