Learn coding with amol

 Hello my name is amol sharma or vineet and this is my fourth part of learn coding with amol and in this part we are going to learn python.

PART-4 python.



🐍 Complete Python Guide

This guide includes all important Python concepts with examples.

1. Variables

Variables store values that can be used later in the program.

name = "Amol"

age = 13

height = 5.6

2. Data Types

Common types include int, float, string, list, dict, bool.

x = 10          # int

y = 3.14        # float

name = "Amol"   # str

items = [1, 2, 3]  # list

person = {"name": "Amol", "age": 13}  # dict

is_human = True # bool

3. if / elif / else

Decision-making in Python.

score = 85

if score >= 90:

    print("Excellent")

elif score >= 50:

    print("Passed")

else:

    print("Failed")

4. Loops

Repeat code using for or while loops.

for i in range(5):

    print("Count:", i)

i = 0

while i < 3:

    print("Hi")

    i += 1

5. Functions

Reusable blocks of code defined with def.

def greet(name):

    print("Hello", name)

greet("Amol")

6. Lists

Ordered collections of items.

fruits = ["apple", "banana", "mango"]

print(fruits[0])  # apple

fruits.append("orange")

7. Dictionaries

Store data in key-value pairs.

user = {"name": "Amol", "age": 13}

print(user["name"])  # Amol

8. Classes and Objects

Blueprints for creating objects.

class Person:

    def __init__(self, name):

        self.name = name

    def greet(self):

        print("Hi, I am", self.name)

p = Person("Amol")

p.greet()

9. Import Modules

Use built-in or external Python modules.

import math

print(math.sqrt(16))

print(math.pi)

10. File Handling

Read and write text files in Python.

# Write to file

with open("data.txt", "w") as f:

    f.write("Hello, file!")

# Read from file

with open("data.txt", "r") as f:

    print(f.read())
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