PyFile:TryExceptFinally.py
  PyTryExceptStatement
    PyTryPart
      PsiElement(Py:TRY_KEYWORD)('try')
      PsiElement(Py:COLON)(':')
      PsiWhiteSpace('\n  ')
      PyStatementList
        PyExpressionStatement
          PyReferenceExpression: x
            PsiElement(Py:IDENTIFIER)('x')
    PsiWhiteSpace('\n')
    PyExceptPart
      PsiElement(Py:EXCEPT_KEYWORD)('except')
      PsiElement(Py:COLON)(':')
      PsiWhiteSpace('\n  ')
      PyStatementList
        PyExpressionStatement
          PyReferenceExpression: y
            PsiElement(Py:IDENTIFIER)('y')
    PsiWhiteSpace('\n')
    PyFinallyPart
      PsiElement(Py:FINALLY_KEYWORD)('finally')
      PsiElement(Py:COLON)(':')
      PsiWhiteSpace('\n  ')
      PyStatementList
        PyExpressionStatement
          PyReferenceExpression: z
            PsiElement(Py:IDENTIFIER)('z')