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[RaiMan <question147486@xxxxxxxxxxxxxxxxxxxxx>]

Question #147486 on Sikuli changed:
https://answers.launchpad.net/sikuli/+question/147486

    Status: Open => Answered

RaiMan proposed the following answer:
Looping: FAQ 1437

success = False
while not success:
   try:
      # code layer 1
      success = True # this ends the loop
   except:
      try:
         #code layer 2
         continue # goes back to beginning of loop
      except:
         pass
   except:
      pass
   if not success:
      # here goes what you had before in your one except
      break # you might wish to exit the loop here
# first statement after the loop
if not success:
   popup("permanent error")
   exit(1)
# we go on if successful

I guess you are asking this, because you want to catch FindFailed
exceptions. You should have a look at exists() which returns None in
case of FindFailed, so it can be used in ii/elif/while constructs:

while not exists(<some-image>):
    # do something to make <some-image> come into existence
click(<some-image>) # in many cases you might use
                                # click(getLastMatch()) and avoid the same find() op

This usually makes the code more pretty against these ugly (even nested)
<try: except:>.

see:  http://sikuli.org/docx/region.html#exception-findfailed

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