Python Selenium

Python Selenium WebDriver and its Architecture:

WebDriver is a tool that allows us to control a browser using code. This actually gives instructions to the browser.

Architecture:

Python Selenium Script >> Selenium WebDriver >> Browser Driver >> Real Browser

Components:

1. Test script: This is our actual code.
2. Selenium WebDriver: This works like a middleman; it will understand the commands from the script.
3. Browser Driver: This will translate the commands to the browser.
4. Real Browser: It will take the final action.

Python Virtual Environments and its Significance:

It is an isolated Python environment where separate packages will get installed. Every project will be independent here. It ensures that change in one project does not affect other projects.

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Why It is Important:

1. Avoid Version Conflicts: Different projects can use different versions of the same library. Like Project 1 is using Selenium3 and Project2 is using Selenium4.

2. Project Isolation: Each project remains clean and independent.

3. Easy dependency management: We can export and share dependencies.

4. Safe Experimentation: We can try new libraries without affecting system python.

5. Better for Automation and CI/CD: Tools like Jenkins can create fresh environments for each run.

Web Browser Developer Tools (F12) and its Significance:

We also call it DevTools.

These are browser tools that are used for multiple things.

IN automation, we generally use these to see the HTML structure.

Why do we use DevTools:

We use it to find the selenium elements. We can identify different elements and their properties, such as id, class, type, text, tag, etc.