If you are preparing for Selenium-Python Interview then also check below Q&A:
Python Interview Question & Answers Set - 01

Python Interview Q&A Set - 02

Introduction

Python supports the Object-Oriented Programming approach to establish the applications. It is simple and easy to learn and provides lots of high-level data structures. It is an open-source language.

Selenium Python bindings provides a simple API to write functional/acceptance tests using Selenium WebDriver. Through Selenium Python API you can access all functionalities of Selenium WebDriver in an intuitive way.

Selenium Python bindings provide a convenient API to access Selenium WebDrivers like Firefox, Ie, Chrome, Remote etc. The current supported Python versions are 3.5 and above.

If you are new to PYTHON then first check the post on How to Install Python on windows and mac?, once installation is complete then only checkout the below Q&A

How to Configure Selenium using Python

There are following steps to configure Selenium using Python:

Download and install Python
Install Selenium libraries in Python: use "pip install selenium" command
Download and install PyCharm
Create a new project and write the Selenium test script
Run and validate the test scripts.

Let's start going through the Q&A:

How to start the session ?

driver = webdriver.Chrome(service=ChromeService(executable_path

=ChromeDriverManager().install()))

How to write the first Python Selenium script with Basic Commands?

Ans: Click the link HERE for the entire code

How to use ChromeDriver ?

Download the latest chromedriver from the download page. Unzip the file:

unzip chromedriver_linux32_x.x.x.x.zip

You should see an chromedriver executable. Now you can create an instance of Chrome WebDriver like this:

driver = webdriver.Chrome(executable_path="/path/to/chromedriver")

The rest of the examples should work as given in the other documentation.

Does Selenium 2 support XPath 2.0 ?

Ref: http://seleniumhq.org/docs/03_webdriver.html#how-xpath-works-in-webdriver

Selenium delegates XPath queries down to the browser’s own XPath engine, so Selenium support XPath supports whatever the browser supports. In browsers which don’t have native XPath engines (IE 6,7,8), Selenium supports XPath 1.0 only.

How do I scroll down to the bottom of a page ?

You can use the execute_script method to execute javascript on the loaded page. You can call the JavaScript API to scroll to the bottom or any other position of a page.

Here is an example to scroll to the bottom of a page:

driver.execute_script("window.scrollTo(0, document.body.scrollHeight);")

The window object in DOM has a scrollTo method is to scroll to any position of an open window. scrollHeight is a common property for all elements. document.body.scrollHeight will give the height of the entire body of the page.

How to auto save files using a custom Firefox profile?

The first step is to identify the type of file you want to auto save.

Lets understand the process with demo code and detailed steps check the Post HERE

How to upload files into file inputs ?

Ans: Select the <input type="file"> element and call the send_keys() method passing the file path, either the path relative to the test script, or an absolute path. Keep in mind the differences in path names between Windows and Unix systems.

How to use firebug with Firefox ?

First download the Firebug XPI file, later you call the add_extension method available for the firefox profile:

from selenium import webdriver

fp = webdriver.FirefoxProfile()

fp.add_extension(extension='firebug-1.8.4.xpi')
fp.set_preference("extensions.firebug.currentVersion", "1.8.4") #Avoid startup screen
browser = webdriver.Firefox(firefox_profile=fp)

Using Selenium with remote WebDriver

Ans: Click HERE to understand the steps with the demo code

How to use Implicit wait in Selenium with python?

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 (zero). Once set, an implicit wait is set for the life of the WebDriver object.

from selenium import webdriver

driver = webdriver.Firefox()
driver.implicitly_wait(10) # seconds
driver.get("https://automationreinvented.blogspot.com/")
myDynamicElement = driver.find_element_by_id("myDynamicElement")