Beginner Python3 Tutorials

Learn how to install Python 3, understand Python 2 vs 3 differences, and use IDLE or the command line to run, test, and take advantage of autofill while coding.

Learn how to handle quotes in Python strings, using single, double, and triple quotes, escape characters, and printing multi-line text.

Learn to embed variable values in strings using python's percent formatting, dynamically filling placeholders to produce messages like hey my name is ... with first and last names.

Learn string concatenation and multiplication in Python 3, using variables for first name and last name, adding spaces with extra strings, and printing formatted results.

Explore how lists differ from strings by storing related data as separate items, create lists with brackets, access items by zero-based indexing, and print whole lists or specific indices.

Learn to select ranges from lists in Python using slicing, with start inclusive and end exclusive, and explore mixing numbers and strings in lists.

Learn how the if statement in Python checks a condition using the age variable to decide outcomes, with indentation and a colon to print messages like you are too young.

Explore how if statements evaluate true or false with comparison operators, using examples like 5 is less than 7 and 3.7 is less than 5, with else and variables.

Learn how the elif statement handles multiple true conditions with if/elif/else, using name and age examples to show selection, flow, and range checks.

Learn how to represent an unassigned variable with None, distinguish it from zero or empty values, and test for a value using if statements and else blocks.

Explore nested for loops in Python by iterating over a list of friends and a range, printing values and highlighting correct indentation.

Explore string indexing and slicing in Python by printing ranges with start and stop indices, including negative indexes, to understand how slicing selects characters.

Learn how to work with lists in Python by using common methods such as append, count, extend, index, insert, pop, remove, reverse, and sort, including handling numbers and strings.

Learn how the return statement hands back a value from a function, and how to pass parameters, assign to variables, and use the result in if statements.

Learn how to define Python functions with default parameter values, use a tip calculator example, and override defaults when callers provide explicit arguments.