micropython exception handling

[kjm]

def _fn():
  try:
    raise OSError
  except OSError: 1/0
  except Exception: print('_fn exception handler')

try:
  _fn()
except Exception: print('_caller exception handler') 

Can someone please explain to me why an error in a functions except OSError section is handled by the except Exception section of the calling program rather than the exception Exception of the function itself? I mean the Exception in the fn's except OSError is between that fn's try & except Exception, so shouldn't it be handled by the fn's except Exception?

>>>
_caller exception handler
>

[johand]

@kjm said in micropython exception handling:

I mean the Exception in the fn's except OSError is between that fn's try & except Exception

No, it´s not, it is outside your try. Try this instead:

def _fn():
  try:
    try:
      raise OSError
    except OSError: 1/0
  except Exception: print('_fn exception handler')

try:
  _fn()
except Exception: print('_caller exception handler')

Johan