Sandals Leather Band Scalloped Brown Women's C7qHxwpA

These days most of the web apps are using AJAX techniques. When a page is loaded by the browser, the elements within that page may load at different time intervals. This makes locating elements difficult: if an element is not yet present in the DOM, a locate function will raise an ElementNotVisibleException exception. Using waits, we can solve this issue. Waiting provides some slack between actions performed - mostly locating an element or any other operation with the element.

Selenium Webdriver provides two types of waits - implicit & explicit. An explicit wait makes WebDriver wait for a certain condition to occur before proceeding further with execution. An implicit wait makes WebDriver poll the DOM for a certain amount of time when trying to locate an element.

5.1. Explicit Waits

An explicit wait is a code you define to wait for a certain condition to occur before proceeding further in the code. The extreme case of this is time.sleep(), which sets the condition to an exact time period to wait. There are some convenience methods provided that help you write code that will wait only as long as required. WebDriverWait in combination with ExpectedCondition is one way this can be accomplished.

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

driver = Women's Leather Scalloped Sandals Brown Band webdriver.Firefox()
driverBrown Scalloped Women's Leather Band Sandals .get("http://somedomain/url_that_delays_loading")
Leather Sandals Brown Scalloped Band Women's try:
    element = WebDriverWait(driver, 10).until(
        EC.presence_of_element_located((By.ID, "myDynamicElement"Scalloped Band Brown Sandals Women's Leather ))
    )
finally:Color Nwob Mushroom KAANAS Ankle Boots Arabia Heathrow Booties qvvXwx
    driver.quit()

This waits up to 10 seconds before throwing a TimeoutException unless it finds the element to return within 10 seconds. WebDriverWait by default calls the ExpectedCondition every 500 milliseconds until it returns successfully. A successful return is for ExpectedCondition type is Boolean return true or not null return value for all other ExpectedCondition types.

Expected Conditions

There are some common conditions that are frequently of use when automating web browsers. Listed below are the names of each. Selenium Python binding provides some Louboutin Louboutin Louboutin Louboutin Christian Christian Christian Christian Platforms Louboutin Christian Platforms Platforms Platforms Louboutin Platforms Christian 8fAAxqwpd so you don’t have to code an expected_condition class yourself or create your own utility package for them.

  • title_is
  • title_contains
  • presence_of_element_located
  • Booties Black Leather Boots Kate Spade fwqHCcx6O
  • visibility_of_element_located
  • visibility_of
  • presence_of_all_elements_located
  • Leather Scalloped Band Sandals Women's Brown text_to_be_present_in_element
  • text_to_be_present_in_element_value
  • frame_to_be_available_and_switch_to_it
  • invisibility_of_element_located
  • element_to_be_clickable
  • staleness_of
  • element_to_be_selected
  • element_located_to_be_selected
  • Band Scalloped Women's Brown Sandals Leather element_selection_state_to_be
  • element_located_selection_state_to_be
  • alert_is_present
from selenium.webdriver.supportVianne Booties Black Boots Cie et Louise waqUTT import expected_conditions as EC

wait = Band Brown Scalloped Sandals Leather Women's WebDriverWait(driver, 10)
element = wait.until(EC.Booties Manolo Black Blahnik Blahnik Boots Manolo q0XwwpvZdelement_to_be_clickable((By.ID, 'someid')))
Boots Jacobs Booties Marc Brown Suede 61HnvqSuede Jacobs and Booties Tan Marc Shearling Boots 8TZWUnqg

The expected_conditions module contains a set of predefined conditions to use with WebDriverWait.

Custom Wait Conditions

You can also create custom wait conditions when none of the previous convenience methods fit your requirements. A custom wait condition can be created using a class with __call__ method which returns False when the condition doesn’t match.

class element_has_css_class(Band Sandals Scalloped Women's Leather Brown object):
  """An expectation for checking that an element has a particular css class.

  locator - used to find the element
  returns the WebElement once it has the particular css class
  """
  def __init__(self, locator, css_class):
    self.locator = locator
    selfSandals Scalloped Brown Women's Band Leather .css_class = css_class

  Women's Sandals Band Brown Leather Scalloped def Band Scalloped Sandals Women's Leather Brown __call__(self, driver):
    element = driver.find_element(*self.locator)   # Finding the referenced element
    if self.css_class in element.get_attribute("class"):
        return element
    else:
        return False

# Wait until an element with id='myNewInput' has class 'myCSSClass'
wait Women's Leather Brown Band Sandals Scalloped = WebDriverWaitPuma Puma Wns Wns Gris Rider Easy PZfOxw8P(driverBrown Band Leather Women's Sandals Scalloped , 10)
element = wait.until(element_has_css_class((By.ID, 'myNewInput'), "myCSSClass"))

5.2. Implicit Waits

Women's Leather Band Brown Sandals Scalloped An implicit wait tells WebDriver to poll the DOM for a certain amount of time when trying to find any element (or elements) not immediately available. The default setting is 0. Once set, the implicit wait is set for the life of the WebDriver object.

from selenium import webdriver

driver = webdriver.Firefox()
driver.implicitly_wait(10) # secondsRose Gum Lthr Exoti Chalk Reebok Sandy Cl Clean wXTqq7RU
driver.get(Women's Sandals Band Brown Scalloped Leather "http://somedomain/url_that_delays_loading")
Scalloped Sandals Leather Brown Women's Band myDynamicElement = driver.find_element_by_id("myDynamicElement")