Gain insights into Python by exploring basic to advanced concepts, including loops, classes, and GUIs with Tkinter. Delve into testing and become a productive Python programmer.

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In this course, you will get a comprehensive overview of Python. You will start by laying the foundation and learning the introductory topics like operators, conditional statements, functions, loops, assignment statements, and more. You will then move onto more advanced topics such as classes and inheritance, iterators, list comprehensions, and dictionaries. Along with this, you will also get to explore the concept of testing and take a look at how GUI applications can be designed using Tkinter, Python's standard GUI library. 

By the time you're done, you'll be able to hit the ground running and be equipped with the tools that will allow you to be productive in Python.

Python 3: From Beginner to Advanced

def get_top(grades):
    return [x['name'] for x in grades if x['percent'] >= 80]

grades = [
   {"name": "Mary","percent": 90},
   {"name": "Don","percent": 55},
   {"name": "Bob","percent": 70},
   {"name": "Jim","percent": 85},
   {"name": "Meg","percent": 80},
   {"name": "Jil","percent": 75}
]

print(get_top(grades))

# Explanation

To solve this problem, we used the list comprehension syntax. 

First of all, at **line 2**, we used a `for` loop to traverse the `grades` list to get access to the list of dictionaries inside of it. 

Then, once again at **line 2**, we used an `if` statement to extract the students with a `percent` **greater** than **80**.

Finally, we return the `name` of the students that were able to achieve this threshold by using the indexing syntax.  

This lesson explains the solution for the "extracting toppers" exercise.

Introduction

The Absolute Bare Minimum

Better Tools

Classes

Getting Fancy

Testing

Graphical User Interfaces

Modules

Appendix

I Guess We're Doing Python Now Exam

Solution Review: Extracting Toppers From a Student Record

Solution

Explanation