CODEWITHSUNDEEP
pythonpython-3.x
SecretIndividual
SecretIndividual

Reputation: 2519

Instance attribute getters in Python

I tried writing a custom getter for a class attribute. But I am unable of finding the right syntax in Python. I tried what is mentioned in this question but using the @property decorator does not seem to work or I am calling it incorrectly.

Class:

class Comment:
  def __init__(self):
    self.productRecommender = None

  @property
  def productRecommender(self):
    return self.productRecommender if self.productRecommender is not None else 'Onbekend'

Setting the attribute in the code (uses Selenium, comment is an instance of Comment()), should stay None if class is not found:

try:
  comment.recommender = comment.find_element_by_class_name('recommend').text
except NoSuchElementException:
  pass

Trying to access the value

comment.productRecommender

Upvotes: 2

Views: 121

Answers (1)

Josh
Josh

Reputation: 159

it should be self._productRecommender and not self.productRecommender

class Comment():
    def __init__(self):
        self._productRecommender = None

    @property
    def productRecommender(self):
        print("getter called")
        return self._productRecommender if self._productRecommender is not None else 'Onbekend'

c = Comment()
foo = c.productRecommender

Upvotes: 1

Related Questions