"typeerror: 'str' Object Is Not Callable" Using Webdriverwait For Link_text In Selenium Through Python

June 26, 2023 Post a Comment

This is my first post on Stack Overflow. I have been browsing and searching for every possible answer to this question on SO, and I figured at this point I should just ask a questi

Solution 1:

Your research was in the right direction.

In your first usecase, the line within try was successful:

driver.find_element_by_link_text("Familien").click()

So the line within except was never called:

WebDriverWait(driver, 12).until("Familien").click()

Hence you don't see the error.

In your second use-case, the line within try wasn't successful:

driver.find_element_by_link_text("Familien").click()

So the line within except was called:

WebDriverWait(driver, 12).until("Mehr erfahren").click()

which results into the error:

TypeError: 'str'object is not callable

Deep Dive

WebDriverWait is invoked inconjunction with expected_conditions.

You can find a couple of detailed discussions in:

Now, element_to_be_clickable() should be called within a tuple as it is not a function but a class, where the initializer expects just 1 argument beyond the implicitself:

classelement_to_be_clickable(object):
    """ An Expectation for checking an element is visible and enabled such that you can click it."""def__init__(self, locator):
        self.locator = locator

    def__call__(self, driver):
        element = visibility_of_element_located(self.locator)(driver)
        if element and element.is_enabled():
            return element
        else:
            returnFalse

So instead of:

WebDriverWait(driver, 12).until("Mehr erfahren").click()

You need to (add an extra parentheses):

WebDriverWait(driver, 12).until((EC.element_to_be_clickable(By.LINK_TEXT, "Mehr erfahren"))).click()

You can find a detailed discussions in init() takes 2 positional arguments but 3 were given using WebDriverWait and expected_conditions as element_to_be_clickable with Selenium Python

Solution 2:

I think I found your problem here. From the source

defuntil(self, method, message=''):
    ...

until takes a method (i.e. something callable). So, when driver.find_element_by_link_text("Mehr erfahren").click() raises an exception, it will attempt to call ...until("Mehr erfahren").... Since until expects a method it will try to call the string you gave it - raising the error that's been driving you crazy :)

Solution 3:

I think until expects a conditional (and WebDriverWait waits until that condition is true). You're just passing a string as your argument instead of a condition. You need a condition that checks if that element exists on the page.

Solution 4:

You can use this css selector: a[href*="familien"]

This can be used for both your URLs.

driver.get('yourURL')
try:
    WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, 'a[href*="familien"]'))).click()
except NoSuchElementException:
    # handle if the element not existprint('element not exist')

See documentation here to know how to use WebDriverWait

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