Skip a chunk of code if img cannot be found

x = (img)
if
x = (img)
else
#Chunk of code
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
if
x = ()
else
#Next img and chunk of code
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>

Is that even close??? LOL

ah would most likely be more like
x = (img)
if x= img
>>>>>>
>>>>>> #chunk of code for X
>>>>>>

Else
>>>>>>
>>>>>> #new img and chunk of code.
>>>>>>

only a few things:
- one line --- one command
- if, elsif, else, while have to be written as if condition: (colon at end)
- chunk of code (block), that belongs to an if e.g. has to be indented (best practice: always use 3 blanks, don't tab!)
- next statement after an block: reduce indentation to what outer block has
- you can use variables for everything, to save it for future use
- a one line comment goes after #

example: (mind indentation, the oddest thing with python (you don't have a block-end!))
I use variables for everything here.

img = <image> # to be captured
found = find(img) # True if found, False otherwise
if found: # shorty for if found == True: or if not found == False: (thats really odd)
   msg = "found! What now?"
   backMsg = input(msg) # ask user for some input, None if user clicks only ok, otherwise text
   if not backMsg: # is None is False if user clicks only OK
      popup("OK, you are fed up")
      backMsg = "" # so we later know we have to finish
   else:
      popup("Yes, we go on!") # this is the last statement of the else: AND the outer if found:
else:
   popup("Sorry, not found")
   backMsg = ""
if not backMsg == "": # we have to goon
   >>>> # this indented code only runs, if found AND user said something
   >>>>
   >>>>
popup("this is the end!")

hope it helps.

add on!

due to odd comment formatting (new line before found:) it reads in the middle:
      popup("Yes, we go on!") # this is the last statement of the else: AND the outer if
found:

should read:
      popup("Yes, we go on!") # the last statement of else: AND of the outer if found:

if you look at some of my answers, bugreports and comments (click Raiman and Answers, Bugs on my personal page) you may find some other hints.

I know how to program, but touched python with Sikuli first time. So we are in one boat ;-)