90 Days of Python : From Zero to becoming a Pro Developer

Learn how to store data with variables in Python, use the equal operator to assign values, print variable contents, and follow naming rules for valid variable names.

Learn how to declare and assign variables in Python, and print single or multiple variables. Explore reassignment, string concatenation, multi-variable lines, and swapping values.

Render variables with Python f-strings by interpolating name and age inside braces, transforming literal text into dynamic output like 'my name is Taylor and I am 25 years old'.

Learn how to convert between Python data types, including strings to integers with int, integers to strings with str, and integers to booleans with bool, plus handling conversion errors.

Learn how to convert a string to an integer and an integer to a string in Python using int and str, then convert values to boolean with bool.

Discover how the end parameter in Python's print statement controls line breaks, letting you join outputs on one line with a space or comma; by default end adds a newline.

Explore Python's arithmetic operators, from addition and subtraction to multiplication, division, and exponentiation, with practical examples like repeating a string and using integer division and modulus.

Learn how Python uses the hash symbol for single-line comments and triple double quotation marks for multi-line comments, which are ignored by the interpreter, to improve readability.

Master python string manipulation by indexing characters (including negative indices), concatenating with + or comma, and converting case with lower and upper, plus using index, len, is_upper, is_lower, and replace.

Inspect Python's core data types by focusing on strings, numbers (integers and floats), and booleans, then learn to print values, check types with type(), and use underscores for readability.

Break down complex programs into smaller function units. Define and reuse functions to move the car and opposing cars, display game over on collision, and update the score in Python.

Pass values to a function using positional arguments in the order defined by the signature, illustrated with addition using a and b, and greetings with message, name, and age.

Explore default arguments in Python by inspecting a greet function with name and greeting, and a power function with default exponent values like two.

Learn how the return keyword transfers a function result to the caller, including single results, multiple values like area and perimeter, and the default none when nothing is returned.

Import the built-in random module to generate random integers from 1 to 10, floats from 0 to 1, pick random list items, shuffle, and obtain random samples for real-time apps.

Discover Python's built-in mathematical functions via the math module, including sqrt, abs, factorial, log, pow, gcd, sin, cos, tan, pi, e, and exp.

Understand how conditional statements control program flow in Python by evaluating conditions to run different blocks of code, using if and else in game-like scenarios such as collisions and scoring.

Learn Python if-else statements, evaluate conditions, and use blocks for true or false outcomes with examples like age checks, two numbers, and even-odd modulus.

Learn to handle multiple conditions in Python by using if, elif, and else to categorize temperature ranges from cold to very hot.

Explore nested if statements in Python with a username and password example, showing outer checks for admin and inner checks for password, and clarifying assignment versus comparison.

Use Python's input function to capture user input, store it in a variable, and print results; convert input to int to check even or odd numbers with modulus.

Explore lists in Python, an ordered data structure for storing numeric and string items. Learn to create, index from zero, slice, update, and use append, insert, remove, clear, and del.

Learn how tuples in Python are immutable and how they differ from lists. Create tuples with parentheses, print them, and access items by index (zero-based, last item is -1).

Explore dictionaries in Python by using keys to store and access values, print items, retrieve values with get, and update, delete, and clear entries while measuring the dictionary length.