try:
  a
except:
  b

try  :
  c
except d as e  :
  f
else  :
  g

try:
  h
  i
except   j   as    k:
  l
  m
except  n:
  o
finally  :
  p
  q

try:
  # 1
  try:
    r
  except:
    s
except:
  t

try:
  # 2
  try:
    u
  except:
    v
finally:
  w

try:
  # 3
  try:
    x
  finally:
    y
finally:
  z
