Python is a high-level, interpreted programming language that is widely used for scripting, automation, web development, data analysis, and machine learning. The syntax of Python is concise, expressive, and easy to learn, making it a favorite language for beginners and experts alike.
In this blog, we will discuss the basic syntax of Python with the help of some code snippets.
- Variables
Variables are used to store data values in Python. To create a variable, you just need to assign a value to it using the assignment operator (=). Python supports dynamic typing, which means you can assign a value of any type to a variable without declaring its type.
Example:
#creating variables a = 10 b = "hello" c = True #printing variables print(a) print(b) print(c)
Output:
10 hello True
- Data Types
Python supports several built-in data types such as integer, float, string, boolean, list, tuple, set, and dictionary. You can also define your own custom data types using classes.
Example:
#declaring variables of different data types
num = 10 #integer
pi = 3.14 #float
name = "John" #string
is_male = True #boolean
fruits = ['apple', 'banana', 'orange'] #list
person = ('John', 30, 'Male') #tuple
ages = { 'John': 30, 'Mary': 25, 'Bob': 40 } #dictionary
#printing the values
print(num)
print(pi)
print(name)
print(is_male)
print(fruits)
print(person)
print(ages)
Output:
10
3.14
John
True
['apple', 'banana', 'orange']
('John', 30, 'Male')
{'John': 30, 'Mary': 25, 'Bob': 40}
- Conditional Statements
Conditional statements are used to execute different code blocks based on a certain condition. Python supports if, elif, and else statements for conditional execution.
Example:
#using if statement
a = 10
b = 20
if a > b:
print("a is greater than b")
else:
print("b is greater than a")
#using if-elif-else statement
age = 30
if age < 18:
print("You are a minor")
elif age >= 18 and age < 60:
print("You are an adult")
else:
print("You are a senior citizen")
Output:
b is greater than a You are an adult
- Loops
Loops are used to iterate over a sequence of values and perform some operations on each value. Python supports two types of loops – for loop and while loop.
Example:
#for loop
fruits = ['apple', 'banana', 'orange']
for fruit in fruits:
print(fruit)
#while loop
i = 1
while i <= 10:
print(i)
i += 1
Output:
apple banana orange 1 2 3 4 5 6 7 8 9 10
- Functions
Functions are used to group a set of statements into a reusable code block. Python allows you to define your own functions using the def keyword.
Example:
#defining a function
def greet(name):
print("Hello, " + name)
#calling a function
greet("John")
greet("Mary")
Output:
Hello, John Hello, Mary
