Selenium Webdriver (Python) API

1.
Introduction to Selenium-webdriver by Example
A simple way to get started is this example,
It searches for the term "Cheese" on Google,
The title of the resulting page is then output to the console.

Java CSharp python
From selenium import Webdriver
From selenium.common.exceptions import timeoutexception
From Selenium.webdriver.support.ui import webdriverwait
# but since 2.4.0
From Selenium.webdriver.support import expected_conditions as EC
# but since 2.26.0

Driver = Webdriver. Firefox ()
# Create a new instance of Firefox driver

Driver.get ("https://www.google.com")
# Go to Google homepage

Print Driver.title
# page Ajaxy So the title turns out to be this:

Inputelement = Driver.find_element_by_name ("q")
# The name attribute of the found element is Q (google search box)

Inputelement.send_keys ("cheese!")
# type Search

Inputelement.submit ()
# Submit form (although Google Auto Search is not submitted now)

Try
Webdriverwait (Driver). Until (Ec.title_contains ("cheese!"))
# We have to wait for the page to refresh, the last thing that seems to be updated is the title

Print Driver.title
# you should see "cheese! -Google Search "

Finally
Driver.quit ()

2.
Crawl page
The first thing you might want to do with Webdriver is to navigate to a page.
The normal practice is to call "get":

Driver.get ("https://www.google.com")

3.
Find UI elements (webelements)
The "Find" method uses a locator or query object named "by".
The "by" policy is listed below.

by ID

An example of how to find an element such as the following:

<div id= "Coolestwidgetevah" >...</div>

element = driver.find_element_by_id ("Coolestwidgetevah")

Or

From selenium.webdriver.common.by Import by
element = Driver.find_element (by=by.id, value= "Coolestwidgetevah")

by Class Name

An example of how to find an element such as the following:

<div class= "Cheese" ><span>cheddar</span></div><div class= "cheese" ><span> Gouda</span></div>

cheeses = driver.find_elements_by_class_name ("cheese")

Or

From selenium.webdriver.common.by Import by
cheeses = driver.find_elements (by.class_name, "cheese")

by Tag Name

An example of how to find an element such as the following:

<iframe src= "..." ></iframe>

frame = Driver.find_element_by_tag_name ("iframe")

Or

From selenium.webdriver.common.by Import by
frame = Driver.find_element (By.tag_name, "iframe")

by Name

An example of how to find an element such as the following:

<input name= "Cheese" type= "text"/>

Cheese = driver.find_element_by_name ("cheese")

Or

From selenium.webdriver.common.by Import by
Cheese = driver.find_element (by.name, "cheese")

by Link Text

An example of how to find an element such as the following:

<a href= "Http://www.google.com/search?q=cheese" >cheese</a>>

Cheese = Driver.find_element_by_link_text ("cheese")

Or

From selenium.webdriver.common.by Import by
Cheese = driver.find_element (by.link_text, "cheese")

by Partial Link Text

An example of how to find an element such as the following:

<a href= "Http://www.google.com/search?q=cheese" >search for cheese</a>>

Cheese = Driver.find_element_by_partial_link_text ("cheese")

Or

From selenium.webdriver.common.by Import by
Cheese = driver.find_element (by.partial_link_text, "cheese")

by CSS

Here's an example of cheese:

<div id= "Food" ><span class= "Dairy" >milk</span><span class= "dairy aged" >cheese</span> </div>

Cheese = Driver.find_element_by_css_selector ("#food span.dairy.aged")

Or

From selenium.webdriver.common.by Import by
Cheese = driver.find_element (by.css_selector, "#food span.dairy.aged")

by XPath

This is a small abstraction, so for the following paragraph of HTML:

<input type= "text" name= "Example"/>
<input type= "text" name= "other"/>

Inputs = Driver.find_elements_by_xpath ("//input")

Or

From selenium.webdriver.common.by Import by
Inputs = Driver.find_elements (By.xpath, "//input")

Using JavaScript

A simple example on a page loaded with jquery:

element = Driver.execute_script ("Return $ ('. Cheese ') [0]")

Find all the input elements for each label on the page:

Labels = driver.find_elements_by_tag_name ("label")
Inputs = Driver.execute_script (
"var labels = arguments[0], inputs = []; for (var i=0; i < labels.length; i++) {"+
"Inputs.push (document.getElementById (Labels[i].getattribute (' for"));} return inputs; ", labels)

Selenium Webdriver (Python) API