Python for Beginners: The 6 Basic Concepts You Need to Know — Easy and Efficient!
In this tutorial, we will cover seven basic concepts in Python programming.
Python is a programming language with many characteristics, including an intuitive syntax and powerful data structures, which can lead to efficient code.
Python is used in a wide range of applications, including web development, scientific computing, data mining and machine learning.
In this tutorial, we will cover six basic concepts in Python programming: variables, data types, operators, conditional statements, loops, functions and modules.
Variables
Variables are used to store values in a program. In Python, variables do not need to be declared before they are used, unlike some other programming languages.
The data type of a variable can be automatically inferred from the value it is assigned.
For example, the following code assigns the value 3 to the variable x and the value “Hello” to the variable y:
x = 3
y = “Hello”Operators
Operators are used to perform operations on variables and values. Python supports the standard arithmetic operators:
- (addition)
- — (subtraction)
- * (multiplication)
- / (division)
- // (floor division)
- % (modulo)
- ** (exponentiation).
In addition, Python also supports the assignment operators:
- = (assignment)
- += (addition assignment)
- -= (subtraction assignment)
- *= (multiplication assignment)
- /= (division assignment)
- //= (floor division assignment)
- %= (modulo assignment)
- **= (exponentiation assignment).
Conditional
Conditional statements are used to execute code only if a certain condition is true. The most common conditional statement is the if statement.
For example, the following code will print “Hello” if the variable x is greater than 0:
if x > 0:
print(“Hello”)Loops
Loops are used to execute code multiple times. The most common loop is the for loop, which is used to iterate over a sequence of values.
For example, the following code will print the numbers from 0 to 9:
for i in range(10):
print(I)Functions
Functions are used to group together related code. Functions can take arguments and return values. For example, the following code defines a function that takes two arguments and returns their sum:
def add(x, y):
return x + yModules
Modules are used to group together related code in a separate file. Modules can be imported into other modules or into the main program.
For example, the following code defines a module with a function that prints “Hello”:
def hello():
print(“Hello”)This concludes our tutorial on six basic concepts in Python programming.
Before you leave:
If you liked this article, don’t forget to give me a few claps, follow me and thus receive all updates about new publications.
If you enjoy reading stories like these, consider signing up to become a Medium member. It’s $5 a month, and you’ll receive unlimited access to stories on Medium.
So don’t wait — sign up now and start enjoying all that Medium has to offer.
About the author: Alain Saamego: Software engineer, writer and content strategist at SelfGrow.co.uk
Email:[email protected]
Follow me on Twitter if you want even more content.






