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

# Conversions between data types

There are several different data types available in Python. Sometimes, you might come across a scenario where you need to perform conversions from one data type to another. 

In Python, conversions between types can be made by using its built-in functions, a few of which are mentioned below.

| **Conversion Function**   | **Description**  | **Example**    |
|----------:|-----------|:--------------|
| <center> `float()` </center>  |  Converts the element passed to a floating-point number | `float(123)`, `float("123")` = 123.0        |
| <center> `int()` </center>  |  Converts the element passed to an integer | `int(56.78)`, `int("56")` = 56        |
| <center> `str()` </center>  |  Converts the element passed to a string | `str(123)` = "123"        |

In Python, the built-in `type()` function can be used to check the data type of variables. 

Using this, let's look at a few examples to get a better grasp of these built-in functions.

float_var = 56.78 # Float variable
int_var = 123 # Integer variable
str_var = "123.2" # String variable

res_int = int(float_var) # Converting float to integer
print(res_int)
print("Type: ", type(res_int)) # Checking type of res_int

res_str = str(float_var) # Converting float to string
print(res_str)
print("Type: ", type(res_str)) # Checking type of res_str

res_ftr = float(str_var) # Converting string to float
print(res_ftr)
print("Type: ", type(res_ftr)) # Checking type of res_ftr

Although not its main functionality, the `round()` function can also be used to convert data types. For example, `round(56.78)` returns **57**. Over here, the floating-point number is rounded to the nearest integer.  

## Using round() for converting data types
# Note, the 0 represents the number of decimals you want the number to be rounded off to. 
float_var = 56.78

print(round(float_var, 0)) # We don't want any decimal numbers over here. 

Learn about conversions between different data types in Python. 

Introduction

The Absolute Bare Minimum

Better Tools

Classes

Getting Fancy

Testing

Graphical User Interfaces

Modules

Appendix

I Guess We're Doing Python Now Exam

Data Type Conversion