Python for Everyone: Mastering Python the Right Way
Published: 2022-03-04 21:57:23

Python is a sophisticated general-purpose programming language that is a great place to start learning how to program for beginners. Python features a basic, easy-to-understand syntax that is both concise and readable. Python is a powerful programming language that may be used for a wide range of applications including: 
- web development
- software development
- data analysis
- machine learning
- artificial intelligence

Here are the Python basics that will help you in mastering Python the right way!

#Python Basics
#1. Variables
Defining a variable and assigning a value to it is really simple in Python. Simply define a variable and then add an equal symbol = followed by the value you want to enter. Python variable writing has its own set of rules, which are as follows:
- The first character must be a letter or an underscore. 
- The following characters can be letters, underscores, or numbers.
- Variable names have case-sensitive characters. Lowercase and uppercase letters are distinguished in this way. For example, the variables myCourse and MyCourse are different variables.
Code snippet for writing variables: 
 ```py
name = "Janet"
print(name)
```

#2. Functions
A function is a code block that only executes when it is invoked. Parameters are data that can be passed into a function. As a result, a function can return data.
###Creating a Function
The def keyword is used to declare a function in Python:
```py
def bmi_calculator ():
```
###Calling a Function
Use the function name followed by parenthesis to call it:
```py
def bmi_calculator ():

bmi_calculator()
```

###Arguments
Information can be passed into functions as arguments. Arguments are supplied inside parentheses after the function name. You can use as many arguments as you like; just use a comma to separate them. Here is the code snippet:
```py
def bmi_calculator (name, height, weight):
```
#3. Data Types
Variables can store a variety of data, and different types can perform different tasks. Python comes with the following data types pre-installed in these categories:

Text Type:	`str`
Numeric Types:	`int`, `float`
Sequence Types:	`list`, `tuple`, `range`
Mapping Type:	`dict`
Set Types:	`set`, `frozenset`
Boolean Type:	`true`, `false`

#4. Conditionals
Conditionals are used to anticipate conditions that occur during the course of the program and determine what actions will be taken according to the conditions.
Conditions in Python include `if`, `else` and `elif` The if condition is used to execute code if the condition evaluates to True.
If the condition evaluates to False, the if statement/condition will not be executed.**
Below is an example of using the if condition in Python:
```py
shoe = "Jordans"

if shoe == "Jordans":
    print("This is my favorite shoe")
```
#5. Loops
Python has two primitive loop commands:
`while loops`
`for loops`

###The while Loop
With the while loop we can execute a set of statements as long as a condition is true. 
```py
num = 5

  while num >= 1:
	print("*" * num)
	num -= 2
```

###For Loops
A for loop is used for iterating over a sequence (that is either a list, a tuple, a dictionary, a set, or a string). With the for loop we can execute a set of statements, once for each item in a list, tuple, set etc.
```py
for i in range(5):
    print(i)
```
#6. Classes and Objects
###Creating a class
The class statement is used to create a new class definition. The class name immediately follows the keyword class followed by a colon as follows.
class ClassName: 'Optional class documentation string' class_suite
Creating a class:
```py
class MyClass:
  x = 5
```
###Creating an Object
To instantiate a class, you call the class using the class name and pass any arguments that the init method accepts. 
The code below shows how that can be achieved:
```py
p1 = MyClass()
print(p1.x)
```
With the basics, I hope you can create and work with the most essential aspects of Python. Happy coding!