boggle by struggling pythonista

gistfile1.txt

import ui
from random import randint
import time
import random
import json

w,h = ui.get_screen_size()
view = ui.View(bg_color='#0D76A8', frame=(0,0,w,h))

N = 4  #size of grid

dice = {0: ['A', 'A', 'E', 'E', 'G', 'N'],
        1: ['E', 'L', 'R', 'T', 'T', 'Y'],
        2: ['A', 'O', 'O', 'T', 'T', 'W'],
        3: ['A', 'B', 'B', 'J', 'O', 'O'],
        4: ['E', 'H', 'R', 'T', 'V', 'W'],
        5: ['C', 'I', 'M', 'O', 'T', 'U'],
        6: ['D', 'I', 'S', 'T', 'T', 'Y'],
        7: ['E', 'I', 'O', 'S', 'S', 'T'],
        8: ['D', 'E', 'L', 'R', 'V', 'Y'],
        9: ['A', 'C', 'H', 'O', 'P', 'S'],
        10: ['H', 'I', 'M', 'N', 'Q', 'U'],
        11: ['E', 'E', 'I', 'N', 'S', 'U'],
        12: ['E', 'E', 'G', 'H', 'N', 'W'],
        13: ['A', 'F', 'F', 'K', 'P', 'S'],
        14: ['H', 'L', 'N', 'N', 'R', 'Z'],
        15: ['D', 'E', 'I', 'L', 'R', 'X']}

# add subview to hold dice



square = 125
grid = 4
mg = 10
tray_size = (N * square) + (N * grid) + (3*grid)
main_button = ui.Button(name = 'main_button', bg_color='#0D3C64', tint_color='white', frame=(w/2-120,h-150,240,100))
main_button.title = 'Roll'
view.add_subview(main_button)
main_button.corner_radius=5

tray = ui.View(bg_color='#999999', frame=(w/2-250,h/2-250,tray_size,tray_size))
view.add_subview(tray)

b=[[ui.Button(frame=(i*(square + grid) + 2*grid,j*(square + grid) + 2*grid, square, square)) for i in range(N)] for j in range(N)]

for i in range(N):
	for j in range(N):

		b[j][i].loc=(i,j)
		# value=random.randrange(6)
		# b[j][i].title=str(value+1)
		b[j][i].title=str([i]+[j])
		b[j][i].bg_color='white'
		
		b[j][i].line_width=1
		b[j][i].tint_color='blue'
		tray.add_subview(b[j][i])
		b[j][i].corner_radius=5


view.present(hide_title_bar=True)