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

Challenge: Logical Operators

Task

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You've been assigned a string variable t. Verify if both of these conditions are met:

The string's length is under 15 characters.
The count of the letter 'n' in this string exceeds 2.

Note

To count the number of occurrences of the letter 'n' in the string variable t, use the count method as follows: t.count('n').

You also have a numerical variable a. Determine if either of the following criteria is satisfied:

a is above 9475/37.
The remainder when dividing a by 14 is below 7.

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Section 3. Chapter 4

Challenge: Logical Operators

Task

Swipe to show code editor

You've been assigned a string variable t. Verify if both of these conditions are met:

The string's length is under 15 characters.
The count of the letter 'n' in this string exceeds 2.

Note

To count the number of occurrences of the letter 'n' in the string variable t, use the count method as follows: t.count('n').

You also have a numerical variable a. Determine if either of the following criteria is satisfied:

a is above 9475/37.
The remainder when dividing a by 14 is below 7.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Section 3. Chapter 4

Challenge: Logical Operators

Task

Swipe to show code editor

You've been assigned a string variable t. Verify if both of these conditions are met:

The string's length is under 15 characters.
The count of the letter 'n' in this string exceeds 2.

Note

To count the number of occurrences of the letter 'n' in the string variable t, use the count method as follows: t.count('n').

You also have a numerical variable a. Determine if either of the following criteria is satisfied:

a is above 9475/37.
The remainder when dividing a by 14 is below 7.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Task

Swipe to show code editor

You've been assigned a string variable t. Verify if both of these conditions are met:

The string's length is under 15 characters.
The count of the letter 'n' in this string exceeds 2.

Note

To count the number of occurrences of the letter 'n' in the string variable t, use the count method as follows: t.count('n').

You also have a numerical variable a. Determine if either of the following criteria is satisfied:

a is above 9475/37.
The remainder when dividing a by 14 is below 7.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Section 3. Chapter 4

Switch to desktop for real-world practiceContinue from where you are using one of the options below