Python Fundamentals
beginnerTopic 2 of 12 in Backend Development
What it is
Python is a beginner-friendly, general-purpose programming language known for its clean syntax. It is widely used in backend development, data science, automation, and AI.
Why backend developers need it
Python's readability makes it great for learning programming concepts. On the backend, it powers frameworks like Django and Flask that handle everything from simple APIs to complex web platforms.
What to learn
Variables, data types, and operators
Control flow: if/else, for, while
Functions: parameters, return values, scope
Data structures: lists, dictionaries, tuples, sets
String manipulation and formatting
File I/O: reading and writing files
Modules and packages: import system
Error handling with try/except
List comprehensions and generators
Practice project
CLI Expense Tracker
Build a command-line expense tracker that lets users add expenses with categories, view totals by category, and save/load data from a JSON file.