PYTHON SELENIUM

Python selenium archtecture is a layered system that allows developers to automate web browsers using the selenium webdriver APL. Client Layer(Test Script Layer) Languages supported: selenium supports multiple languages like python,java,c#, ruby,and javaScriot, in our case Python is used. Bindings: The python bindings are wrappers that translate python commands into http requests understood by webdriver. Selenium web driver API webdriver is an interface that defines a set method for iterfacing with browsers (.get(),.click(),.send_keys(),etc.) The webdriver API is language independent. Whenusing python,python binding convert method calls to JSON over HTTP. JSON wire protocol/W3C webdriver protocal This is communication protocol that enables communication between the client and the browser driver. In older versions selenium used the JSON wire protocol. BROWSER DRIVERS: These are executables that act as middlemen between selenium and browsers. Examples: chromedriver for google chrome. geckodriver for firefox msedgedriver for microsoft edge. BROWSERS. The driver controls the browser to perform tasks like loading pages, clicking buttons filling forms. etc. The browsers sends responses back to the driver, which sends them back to the client. PYTHON VIRTUAL ENVIRONMENT Dependency isolotion: Prevents version conflicts between packages. Each project can have its own set of dependencies. Project portability: Makes it easier to share projects (using requirments.txt) without worrying about system wide pacjages. 3.Cleaner global environmrnt: keeps the global python installation untouched and clean 4.Reproducibillity: Help in reproducing exact environment for development, testing and deployment. EXAMPLE: 1.Without virtual environment You install Flask==2.0.0 for project A.later,project B need Flask==1.1.2. installing both globally causes conflicts. 2.With virtual environment: Project A python -m venv venvA source venvA/bin/activate pip install Flask==2.0.0 Project B python -m venv venvB source venvB/bin/activate pip install Flask==1.1.2 Each project run independently without conflict.

May 11, 2025 - 18:58

Python selenium archtecture is a layered system that allows developers to automate web browsers using the selenium webdriver APL.

*Languages supported:
selenium supports multiple languages like python,java,c#, ruby,and javaScriot, in our case Python is used.

*Bindings:
The python bindings are wrappers that translate python commands into http requests understood by webdriver.

webdriver is an interface that defines a set method for iterfacing with browsers (.get(),.click(),.send_keys(),etc.)
The webdriver API is language independent. Whenusing python,python binding convert method calls to JSON over HTTP.

This is communication protocol that enables communication between the client and the browser driver.
In older versions selenium used the JSON wire protocol.

Examples:

The driver controls the browser to perform tasks like loading pages, clicking buttons filling forms. etc.
The browsers sends responses back to the driver, which sends them back to the client.

PYTHON VIRTUAL ENVIRONMENT