Python: Collisions with Ovals -

i've never written in python before i'm trying collision detection when 2 ovals collide, 1 of ovals (the bubble/mine) deleted.

def delete_bubble(k):     bubble_id[k].remove     bubble_r[k].remove  def get_dist(mine,sub):     x = c.coords(mine)     = c.coords(sub)     #compare coordinates , if same, return 0  def collide():     k in range(len(bubble_id)):         x = get_dist(bubble_id[k],ship_c)         if x == 0:             delete_bubble(k) 

how calculate distance between 2 ovals, mine , sub? if x == return 0? or need write distance formula calculate, or need find center of each oval , compare? have radius of each oval i'm confused how write this. since part of interactive game, need continuously check collisions, how implement in main:

#main game loop x in range(10):     create_mines(c) window.after(40, move_mines, c) window.after(10, collide) #does work? window.mainloop() 

i made program can sense collision detection in python, here is:

if oval 1 x < oval 2 x + oval 1 width , oval 1 x + oval 2 width > oval 2 x , oval 1 y < oval 2 y + oval 1 height , oval 2 height + oval 1 y > oval 2 y:     #put code deletes oval here 

this works putting ovals in "imaginary box" , senses if of edges of first "imaginary box" touching of edges of second "imaginary box". hope helped.