Summary

You will need to practice! Use this FREE site to practice the skills you see in this course.

Below is a review of the things you learned in this lesson. I know when I was getting started, I always wanted more practice. This course will move pretty fast from this point forward, so if you feel like you just want more practice problems on a topic, there are a number of free courses on the web. Two that you should definitely take advantage of (for the benefit of this program, but also for finding a job afterward) are HackerRank and Codewars . Within each of these, you should create a profile and work on mastering Python! I was obsessed with these websites for getting all the practice I needed when I first started programming. As you get better, you can advance to harder problems and sites with even greater challenges. Happy coding!

Lesson Summary

You learned a ton in this lesson - here are a few of the big ideas to make sure you take them with you!

Data Structures

There are a number of built in python data structures that you will use all the time when programming. You can find a table of them available below:

Data Structure	Ordered	Mutable	Constructor	Example
int	NA	NA	`int()`	5
float	NA	NA	`float()`	6.5
string	Yes	No	`' '` or `" "` or `str()`	"this is a string"
bool	NA	NA	NA	`True` or `False`
list	Yes	Yes	`[ ]` or `list()`	[5, 'yes', 5.7]
tuple	Yes	No	`( )` or `tuple()`	(5, 'yes', 5.7)
set	No	Yes	`{ }` or `set()`	{5, 'yes', 5.7}
dictionary	No	Keys: No	`{ }` or `dict()`	{'Jun':75, 'Jul':89}

Mathematical, Comparison, and Logical Operators

You also learned about mathematical operators, as shown in the table below and logical operators shown in the table below that! Awesome job!

Mathematical Operators

Comparison and Logical Operators

Booleans, Comparison Operators, and Logical Operators

The bool data type holds one of the values True or False , which are often encoded as 1 or 0 , respectively.

There are 6 comparison operators that are common to see in order to obtain a bool value:

Comparison Operators

Symbol Use Case	Bool	Operation
5 < 3	False	Less Than
5 > 3	True	Greater Than
3 <= 3	True	Less Than or Equal To
3 >= 5	False	Greater Than or Equal To
3 == 5	False	Equal To
3 != 5	True	Not Equal To

And there are three logical operators you need to be familiar with:

Logical Use	Bool	Operation
5 < 3 `and` 5 == 5	False	`and` - Evaluates if all provided statements are True
5 < 3 `or` 5 == 5	True	`or` - Evaluates if at least one of many statements is True
`not` 5 < 3	True	`not` - Flips the Bool Value

Here is more information on how George Boole changed the world!

At this point, you have learned a lot of skills to build on. The next lessons move pretty quickly to help you understand a number of coding practices that you will see in a job, as well as help you get prepared for the project.