Python 3.6.2 / Selenium 2.0 / AJAX - How to wait for a script to complete a server request

Question

So, I have a web application at work that needs to collect information and create some reports and do some basic data analysis.

The thing is, I'm a complete newbie to HTML, Ajax (asynchronous JavaScript and XML), Python, and Selenium.

What I collect so far is the following:

• Ajax nature is to perform asynchronous actions in a web browser and, in my case, send server requests for push / pull some data li>
• Selenium handles asynchronous events that perform actions Wait, such as:
  • time.sleep ('time in ms') # using the time library. So it is NOT REALLY Selenium;
  • Explicit expectations: you define to wait for a certain condition to appear before continuing with the code;

---

    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

    delay_time = 10 # how much time until raises NoExeption in Selenium    

    driver = webdriver.Firefox()
    driver.get("http://somedomain/url_that_delays_loading")

    webDriverWait(driver,delay_time)\
    .until(EC.presence_of_element_located((By.ID, 'IdOfMyElement')))`

EC means the expected conditions represented by:

title_is

     

title_contains;

     

presence_of_element_located

     

visibility_of_element_located

     

visibility_of

     

presence_of_all_elements_located

     

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

     

element_selection_state_to_be

     

element_located_selection_state_to_be

     

alert_is_present

---

• Implicit expectations: ask WebDriver to poll the DOM (Document Object Model) for a certain period of time when trying to find an element or elements if they are not immediately available; driver.implicitly_wait(10)-
• JavaScript Java wait: j Query Ajax query.active.
• FluentWait: FluentWait ;
• WebdriverWait: ExpectedCondition WebDriverWait.

, :

Ajax.

<div id="div_39_1_3" class="Button  CoachView CPP BPMHSectionChild CoachView_show" data-type="com.ibm.bpm.coach.Snapshot_b24acf10_7ca3_40fa_b73f_782cddfd48e6.Button" data-binding="local.clearButton" data-bindingtype="boolean" data-config="config175" data-viewid="GhostClear" data-eventid="boundaryEvent_42" data-ibmbpm-layoutpreview="horizontal" control-name="/GhostClear"> 
    <button class="btn btn-labeled"><span class="btn-label icon fa fa-times"></span>Clear</button></div>

:   function(a) {!e._instance.btn.disabled && c.ui.executeEventHandlingFunction(e, e._proto.EVT_ONCLICK) && (e._instance.multiClicks || (e._instance.btn.disabled = !0, f.add(e._instance.btn, "disabled")), e.context.binding && e.context.binding.set("value", !0), e.context.trigger(function(a) { e._instance.btn.disabled = !1; f.remove(e._instance.btn, "disabled"); setTimeout(function() { c.ui.executeEventHandlingFunction(e, e._proto.EVT_ONBOUNDARYEVT, a.status) }) }, { callBackForAll: !0 })) }

, ajaxCoach

/, AJAX Python?

Answer 1

jquery , jquery , . :

    driver.execute_script('button = $("#div_39_1_3");')
    events = driver.execute_script('return $._data(button[0], 
    "events");')

, .