Iterating Over Indexes

Keep in mind that the range() function needs at least one argument. Since indexing in Python begins at 0, you can use the length of the sequence as the sole argument for the range() function.

To determine the length of a sequence, employ the len() function. For example, you can loop through the list from earlier sections, but this time by its indices.

At each iteration of the loop, the variable i sequentially traverses the indices of values, ranging from 0 to 3.

Everything was clear?

Section 5. Chapter 7

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 Extended 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

Iterating Over Indexes

To determine the length of a sequence, employ the len() function. For example, you can loop through the list from earlier sections, but this time by its indices.

At each iteration of the loop, the variable i sequentially traverses the indices of values, ranging from 0 to 3.

Everything was clear?

Section 5. Chapter 7