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A Journey Through Basic Python Programming

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 First Blog: A Journey Through Basic Python Programming


Hello, fellow tech enthusiasts! Welcome to the very first blog post on Techbbas Log. Today, we are going to embark on a journey through some fundamental Python programming concepts. Whether you are a beginner or looking to refresh your knowledge, this blog will guide you through basic operations, working with lists, and manipulating data structures. Let's dive in!

 Hello, World!


Let's start with the classic "Hello, World!" program, which is a simple way to ensure your Python environment is set up correctly.


```python

print("hello world")

```

 Working with Variables


In Python, you can easily assign values to variables and perform arithmetic operations. Here are some examples:


```python

Assigning a number to a variable

name = 150

Printing the variable

print(name)


 Adding a number to a variable

print(name + 50)


Assigning values to variables and adding them

a = 10

b = 30

print(a + b)

```


 Data Types and Operations


Python allows you to work with different data types such as integers, strings, and floats. Let's see how:


```python

# Assigning string values to variables

a = "23"

b = "30"


Adding integers

print(2 + 2)


Performing division

a = 12 / 3

print(a)


Adding an integer and a float

num1 = 10

num2 = 1.5

sum = num1 + num2

print(sum)

```


User Input

You can also take input from users:


```python

name = int(input("Enter the number: "))

print(name)

```


 Lists in Python


Lists are versatile data structures in Python that allow you to store collections of items.


Creating and Printing a List


```python

fruits = ["amrod", "apple", "mango", "orange", "happy"]

print(fruits)

```

Looping Through a List


```python

for fruit in fruits:

    print(fruit)

```

 Accessing Elements by Index


```python

print(fruits[0])

print(fruits[-2])

```

 Mixed Data Types in a List


```python

mixed_list = ["apple", 1, "banana", 2, 3, "mango"]

print(mixed_list)

for mixed in mixed_list:

    print(mixed)

```


 Modifying Elements in a List


```python

mixed_list[0] = "blueberry"

print(mixed_list)


mixed_list[3] = "blueberry"

print(mixed_list)

```

 Adding Elements to a List


```python

mixed_list.append("peach")

print(mixed_list)


mixed_list.insert(0, "peach")

print(mixed_list)


mixed_list.insert(1, "avocado")

print(mixed_list)

```

 Removing Elements from a List


```python

fruits.remove("apple")

print(fruits)


fruits.insert(1, "apple")

print(fruits)


fruits_two = fruits.pop(1)

print(fruits)

print(fruits_two)

```

 Slicing a List


```python

sublist = fruits[2:5]

print(fruits)

print(sublist)

```

 List of Dictionaries


Creating a list of dictionaries allows you to store complex data structures.


```python

students = [

    {"name": "Alice", "age": 21, "major": "Physics"},

    {"name": "Bob", "age": 22, "major": "Mathematics"},

    {"name": "Charlie", "age": 20, "major": "Computer Science"}

]

print(students)


Adding a new dictionary to the list

new_student = {"name": "David", "age": 23, "major": "Biology"}

students.append(new_student)

print(students)


Looping through the list of dictionaries

for student in students:

    print(f"Age: {student['age']}, Major: {student['major']}")

```

 Nested Lists


You can create and manipulate nested lists for more complex data structures.


```python

matrix = [

    [1, 2, 3],

    [4, 5, 6],

    [7, 8, 9],

    [3, 4, 5]

]


Accessing elements in a nested list

element = matrix[3][2]

print(element)

 Looping through nested lists

for row in matrix:

    print("This will print each row of the matrix:")

    print(row)

```

 Conclusion


This concludes our first blog post on basic Python programming. We covered essential concepts such as printing output, working with variables, manipulating lists, and creating complex data structures. Stay tuned for more in-depth tutorials and advanced topics. Happy coding!

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