Course Content

Introduction to Python

1. First Acquaintance

The Very First Steps Comments Some Simple Math More Challenging Math Challenge Bringing It All Together

2. Variables and Types

Storing Numbers Naming Rules Using Variables Data Types Numbers Challenge Storing Text String Indexing Negative Indexing and Length String Slicing Challenge Concatenation

3. Conditional Statements

Boolean Data Type Challenge: Comparison Operators Combining Conditions Challenge: Logical Operators Membership Operators and Types Comparison Simple if/else Expressions Challenge: Grocery Store Challenge: Odd and Even if/elif/else Expressions Challenge: Grocery Store 2 Challenge: Positive, Negative or Zero

4. Other Data Types

What Is a List?List Methods Challenge Nested Lists Challenge What Is a Tuple?Tuple Methods Challenge Nested Tuples Challenge What Is a Dictionary?Challenge Dictionary Methods Challenge

5. Loops

while Loop Challenge for Loop Challenge Range Challenge Iterating Over Indexes Nested Loops

6. Functions

Built-in Functions Challenge Defining Your First Function Challenge if/else Statements in Functions Challenge Functions With No Return Challenge Modifying Functions Challenge Lambda Functions Challenge

Introduction to Python

Tuple Methods

Let's dive into the primary methods associated with tuples.

len(t) - gives the number of elements in the tuple t;
t * n - produces n repetitions of the tuple t;
t.count(x) - counts how often x appears in the tuple t;

In the previous chapter, we highlighted that tuples are immutable. So, you might wonder: "How can I update a tuple with new values?" Unlike lists, you can't use methods like .append() or .extend() with tuples. However, remember a few chapters back when we discussed concatenation? That method works for tuples too:

tuple1 + tuple2 - this joins two tuples together (both elements must be tuples).

For instance, let's add some new data to the tuple we were working with in the last example.

Just a heads up: make sure the data you're adding is also in tuple format to successfully concatenate.

Everything was clear?

Section 4. Chapter 7