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

## Introduction to `input`

Python has a wide array of excellent built-in functions, such as the `len(my_list)` command, which returns the **length of a list**.

Similarly, to ask the **user for input**, you can use the built-in function `input(_prompt_)`. 

> **Note**: If you omit the prompt, the user will be left staring at a blank screen and wondering why the program isn’t doing anything.

An example of this can be:
```python
name = input("What is your name? ")
print("Hello,", name)
```
The result of a call to input is always a **string**. If you are expecting an integer or a float, you can use the `int` or `float` functions to convert the string to the desired type. For example:
```python
age = int(input("How old are you, " + name + "? "))
```

If the user types in something that can’t be made into an integer, this will result in an error. We deal with error handling later on in the course. 

## Input function example

To understand the built-in `input` function, let's look at an example.

Below, there is a blue colored **Run** button on your screen. Click on it to run the following code (the example given above):
```python
name = input("What is your name? ")
print("Hello,", name)
```

Over here, this will prompt the "_What is your name?_" message. Enter your `name` there. After this, you will see an output displaying your `name` along with a "_Hello_" message.

# Introduction to `input`

Python has a wide array of excellent built-in functions, such as the `len(my_list)` command, which returns the **length of a list**.

Similarly, to ask the **user for input**, you can use the built-in function `input(_prompt_)`. 

> **Note**: If you omit the prompt, the user will be left staring at a blank screen and wondering why the program isn’t doing anything.

An example of this can be:
```python
name = input("What is your name? ")
print("Hello,", name)
```
The result of a call to input is always a **string**. If you are expecting an integer or a float, you can use the `int` or `float` functions to convert the string to the desired type. For example:
```python
age = int(input("How old are you, " + name + "? "))
```

If the user types in something that can’t be made into an integer, this will result in an error. We deal with error handling later on in the course. 

# Input function example

To understand the built-in `input` function, let's look at an example.

Below, there is a blue colored **Run** button on your screen. Click on it to run the following code (the example given above):
```python
name = input("What is your name? ")
print("Hello,", name)
```

Over here, this will prompt the "_What is your name?_" message. Enter your `name` there. After this, you will see an output displaying your `name` along with a "_Hello_" message.

This lesson will focus on Python's built-in input function.

Introduction

The Absolute Bare Minimum

Better Tools

Classes

Getting Fancy

Testing

Graphical User Interfaces

Modules

Appendix

I Guess We're Doing Python Now Exam

Input From the User

Introduction to `input`

I Guess We're Doing Python Now Exam

Input From the User

Introduction to input

Introduction to `input`