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

# Problem statement

You have been provided a `Person` class with the variables `name` and `age`. 

One of your tasks is to add a `__str__()` function to the `Person` class to be able to print the contents of your object. Your function should print the `name` and `age` variables of the `Person` class, like "**Josh is 25 years old**". 

You also need to implement the `__eq__`, `__lt__`, and `__ge__` functions in your `Person` class, in which you will compare the `purchases` of each person. 

# Input

```python
class Person(object):
  def __init__(self, name, age, purchases):
    self.name = name
    self.age = age
    self.purchases = purchases
```

# Output

> **Note:** In the following example, the functions haven't been filled. They're just to give you an idea of what your `Person` class should look like. 

```python
class Person(object):
  def __init__(self, name, age, purchases):
    self.name = name
    self.age = age
    self.purchases = purchases

  def __str__(self):

  def __eq__(self, person):

  def __lt__(self, person):

  def __ge__(self, person):
```

# Challenge

This problem has been designed for you to practice freely, so try to solve it on your own first. Take some time and think about the different concepts that we've explored in the course so far.

If you feel stuck, you can always check out the solution review provided in the next lesson.

Good luck!

Let’s try to print a string representation of a class object's contents and compare these objects.

Introduction

The Absolute Bare Minimum

Better Tools

Classes

Getting Fancy

Testing

Graphical User Interfaces

Modules

Appendix

I Guess We're Doing Python Now Exam

Exercise: Printing and Comparing the Class Objects

Problem statement