old_contents: from jedi.parser.representation import Flow
  
  
  class Status(object):
      lookup_table = {}
  
      def __init__(self, value, name):
          self._value = value
          self._name = name
          Status.lookup_table[value] = self
  
      def __and__(self, other):
          if UNSURE in (self, other):
              return other
          else:
              return REACHABLE if self._value and other._value else UNREACHABLE
  
      def __repr__(self):
          return '<%s: %s>' % (type(self).__name__, self._name)
  
  
  REACHABLE = Status(True, 'reachable')
  UNREACHABLE = Status(False, 'unreachable')
  UNSURE = Status(None, 'unsure')
  
  
  def break_check(evaluator, base_scope, element_scope):
      reachable = REACHABLE
      if isinstance(element_scope, Flow):
          if element_scope.command == 'if' and element_scope.inputs:
              types = evaluator.eval_statement(element_scope.inputs[0])
              values = set(x.py__bool__() for x in types)
              if len(values) == 1:
                  reachable = Status.lookup_table[values.pop()]
              else:
                  return UNSURE
  
      if base_scope != element_scope and base_scope != element_scope.parent:
          return reachable & break_check(evaluator, base_scope, element_scope.parent)
      return reachable
  
new_contents: from jedi.parser.representation import Flow
  
  
  class Status(object):
      lookup_table = {}
  
      def __init__(self, value, name):
          self._value = value
          self._name = name
          Status.lookup_table[value] = self
  
      def __and__(self, other):
          if UNSURE in (self, other):
              return UNSURE
          else:
              return REACHABLE if self._value and other._value else UNREACHABLE
  
      def __repr__(self):
          return '<%s: %s>' % (type(self).__name__, self._name)
  
  
  REACHABLE = Status(True, 'reachable')
  UNREACHABLE = Status(False, 'unreachable')
  UNSURE = Status(None, 'unsure')
  
  
  def break_check(evaluator, base_scope, element_scope):
      reachable = REACHABLE
      if isinstance(element_scope, Flow):
          if element_scope.command == 'if' and element_scope.inputs:
              types = evaluator.eval_statement(element_scope.inputs[0])
              values = set(x.py__bool__() for x in types)
              if len(values) == 1:
                  reachable = Status.lookup_table[values.pop()]
              else:
                  return UNSURE
          elif element_scope.command == 'try':
              reachable = UNSURE
  
      if base_scope != element_scope and base_scope != element_scope.parent:
          return reachable & break_check(evaluator, base_scope, element_scope.parent)
      return reachable
  
subject: fix a logic issue in the flow_analysis.Status.__and__