Python Cheatsheet 🚀
1️⃣ Variables & Data Types
x = 10 (Integer)
y = 3.14 (Float)
name = "Python" (String)
is_valid = True (Boolean)
items = [1, 2, 3] (List)
data = (1, 2, 3) (Tuple)
person = {"name": "Alice", "age": 25} (Dictionary)
2️⃣ Operators
Arithmetic: +, -, *, /, //, %, **
Comparison: ==, !=, >, <, >=, <=
Logical: and, or, not
Membership: in, not in
3️⃣ Control Flow
If-Else:
if age > 18:
print("Adult")
elif age == 18:
print("Just turned 18")
else:
print("Minor")
Loops:
for i in range(5):
print(i)
while x < 10:
x += 1
4️⃣ Functions
Defining & Calling:
def greet(name):
return f"Hello, {name}"
print(greet("Alice"))
Lambda Functions: add = lambda x, y: x + y
5️⃣ Lists & Dictionary Operations
Append: items.append(4)
Remove: items.remove(2)
List Comprehension: [x**2 for x in range(5)]
Dictionary Access: person["name"]
6️⃣ File Handling
Read File:
with open("file.txt", "r") as f:
content = f.read()
Write File:
with open("file.txt", "w") as f:
f.write("Hello, World!")
7️⃣ Exception Handling
try:
result = 10 / 0
except ZeroDivisionError:
print("Cannot divide by zero!")
finally:
print("Done")
8️⃣ Modules & Packages
Importing:
import math
print(math.sqrt(25))
Creating a Module (mymodule.py):
def add(x, y):
return x + y
Usage: from mymodule import add
9️⃣ Object-Oriented Programming (OOP)
Defining a Class:
class Person:
def init(self, name, age):
self.name = name
self.age = age
def greet(self):
return f"Hello, my name is {self.name}"
Creating an Object: p = Person("Alice", 25)
🔟 Useful Libraries
NumPy: import numpy as np
Pandas: import pandas as pd
Matplotlib: import matplotlib.pyplot as plt
Requests: import requests
Python Resources: https://whatsapp.com/channel/0029VaiM08SDuMRaGKd9Wv0L
ENJOY LEARNING 👍👍
1️⃣ Variables & Data Types
x = 10 (Integer)
y = 3.14 (Float)
name = "Python" (String)
is_valid = True (Boolean)
items = [1, 2, 3] (List)
data = (1, 2, 3) (Tuple)
person = {"name": "Alice", "age": 25} (Dictionary)
2️⃣ Operators
Arithmetic: +, -, *, /, //, %, **
Comparison: ==, !=, >, <, >=, <=
Logical: and, or, not
Membership: in, not in
3️⃣ Control Flow
If-Else:
if age > 18:
print("Adult")
elif age == 18:
print("Just turned 18")
else:
print("Minor")
Loops:
for i in range(5):
print(i)
while x < 10:
x += 1
4️⃣ Functions
Defining & Calling:
def greet(name):
return f"Hello, {name}"
print(greet("Alice"))
Lambda Functions: add = lambda x, y: x + y
5️⃣ Lists & Dictionary Operations
Append: items.append(4)
Remove: items.remove(2)
List Comprehension: [x**2 for x in range(5)]
Dictionary Access: person["name"]
6️⃣ File Handling
Read File:
with open("file.txt", "r") as f:
content = f.read()
Write File:
with open("file.txt", "w") as f:
f.write("Hello, World!")
7️⃣ Exception Handling
try:
result = 10 / 0
except ZeroDivisionError:
print("Cannot divide by zero!")
finally:
print("Done")
8️⃣ Modules & Packages
Importing:
import math
print(math.sqrt(25))
Creating a Module (mymodule.py):
def add(x, y):
return x + y
Usage: from mymodule import add
9️⃣ Object-Oriented Programming (OOP)
Defining a Class:
class Person:
def init(self, name, age):
self.name = name
self.age = age
def greet(self):
return f"Hello, my name is {self.name}"
Creating an Object: p = Person("Alice", 25)
🔟 Useful Libraries
NumPy: import numpy as np
Pandas: import pandas as pd
Matplotlib: import matplotlib.pyplot as plt
Requests: import requests
Python Resources: https://whatsapp.com/channel/0029VaiM08SDuMRaGKd9Wv0L
ENJOY LEARNING 👍👍
❤4
🚀 Coding Projects & Ideas 💻
Inspire your next portfolio project — from beginner to pro!
🏗️ Beginner-Friendly Projects
1️⃣ To-Do List App – Create tasks, mark as done, store in browser.
2️⃣ Weather App – Fetch live weather data using a public API.
3️⃣ Unit Converter – Convert currencies, length, or weight.
4️⃣ Personal Portfolio Website – Showcase skills, projects & resume.
5️⃣ Calculator App – Build a clean UI for basic math operations.
⚙️ Intermediate Projects
6️⃣ Chatbot with AI – Use NLP libraries to answer user queries.
7️⃣ Stock Market Tracker – Real-time graphs & stock performance.
8️⃣ Expense Tracker – Manage budgets & visualize spending.
9️⃣ Image Classifier (ML) – Classify objects using pre-trained models.
🔟 E-Commerce Website – Product catalog, cart, payment gateway.
🚀 Advanced Projects
1️⃣1️⃣ Blockchain Voting System – Decentralized & tamper-proof elections.
1️⃣2️⃣ Social Media Analytics Dashboard – Analyze engagement, reach & sentiment.
1️⃣3️⃣ AI Code Assistant – Suggest code improvements or detect bugs.
1️⃣4️⃣ IoT Smart Home App – Control devices using sensors and Raspberry Pi.
1️⃣5️⃣ AR/VR Simulation – Build immersive learning or game experiences.
💡 Tip: Build in public. Share your process on GitHub, LinkedIn & Twitter.
🔥 React ❤️ for more project ideas!
Inspire your next portfolio project — from beginner to pro!
🏗️ Beginner-Friendly Projects
1️⃣ To-Do List App – Create tasks, mark as done, store in browser.
2️⃣ Weather App – Fetch live weather data using a public API.
3️⃣ Unit Converter – Convert currencies, length, or weight.
4️⃣ Personal Portfolio Website – Showcase skills, projects & resume.
5️⃣ Calculator App – Build a clean UI for basic math operations.
⚙️ Intermediate Projects
6️⃣ Chatbot with AI – Use NLP libraries to answer user queries.
7️⃣ Stock Market Tracker – Real-time graphs & stock performance.
8️⃣ Expense Tracker – Manage budgets & visualize spending.
9️⃣ Image Classifier (ML) – Classify objects using pre-trained models.
🔟 E-Commerce Website – Product catalog, cart, payment gateway.
🚀 Advanced Projects
1️⃣1️⃣ Blockchain Voting System – Decentralized & tamper-proof elections.
1️⃣2️⃣ Social Media Analytics Dashboard – Analyze engagement, reach & sentiment.
1️⃣3️⃣ AI Code Assistant – Suggest code improvements or detect bugs.
1️⃣4️⃣ IoT Smart Home App – Control devices using sensors and Raspberry Pi.
1️⃣5️⃣ AR/VR Simulation – Build immersive learning or game experiences.
💡 Tip: Build in public. Share your process on GitHub, LinkedIn & Twitter.
🔥 React ❤️ for more project ideas!
❤6
Backend Development – Essential Concepts 🚀
1️⃣ Backend vs. Frontend
Frontend – Handles UI/UX (HTML, CSS, JavaScript, React, Vue).
Backend – Manages server, database, APIs, and business logic.
2️⃣ Backend Programming Languages
Python – Django, Flask, FastAPI.
JavaScript – Node.js, Express.js.
Java – Spring Boot.
PHP – Laravel.
Ruby – Ruby on Rails.
Go – Gin, Echo.
3️⃣ Databases
SQL Databases – MySQL, PostgreSQL, MS SQL, MariaDB.
NoSQL Databases – MongoDB, Firebase, Cassandra, DynamoDB.
ORM (Object-Relational Mapping) – SQLAlchemy (Python), Sequelize (Node.js).
4️⃣ APIs & Web Services
REST API – Uses HTTP methods (GET, POST, PUT, DELETE).
GraphQL – Flexible API querying.
WebSockets – Real-time communication.
gRPC – High-performance communication.
5️⃣ Authentication & Security
JWT (JSON Web Token) – Secure user authentication.
OAuth 2.0 – Third-party authentication (Google, Facebook).
Hashing & Encryption – Protecting user data (bcrypt, AES).
CORS & CSRF Protection – Prevent security vulnerabilities.
6️⃣ Server & Hosting
Cloud Providers – AWS, Google Cloud, Azure.
Serverless Computing – AWS Lambda, Firebase Functions.
Docker & Kubernetes – Containerization and orchestration.
7️⃣ Caching & Performance Optimization
Redis & Memcached – Fast data caching.
Load Balancing – Distribute traffic efficiently.
CDN (Content Delivery Network) – Faster content delivery.
8️⃣ DevOps & Deployment
CI/CD Pipelines – GitHub Actions, Jenkins, GitLab CI.
Monitoring & Logging – Prometheus, ELK Stack.
Version Control – Git, GitHub, GitLab.
Like it if you need a complete tutorial on all these topics! 👍❤️
Web Development Best Resources
ENJOY LEARNING 👍👍
1️⃣ Backend vs. Frontend
Frontend – Handles UI/UX (HTML, CSS, JavaScript, React, Vue).
Backend – Manages server, database, APIs, and business logic.
2️⃣ Backend Programming Languages
Python – Django, Flask, FastAPI.
JavaScript – Node.js, Express.js.
Java – Spring Boot.
PHP – Laravel.
Ruby – Ruby on Rails.
Go – Gin, Echo.
3️⃣ Databases
SQL Databases – MySQL, PostgreSQL, MS SQL, MariaDB.
NoSQL Databases – MongoDB, Firebase, Cassandra, DynamoDB.
ORM (Object-Relational Mapping) – SQLAlchemy (Python), Sequelize (Node.js).
4️⃣ APIs & Web Services
REST API – Uses HTTP methods (GET, POST, PUT, DELETE).
GraphQL – Flexible API querying.
WebSockets – Real-time communication.
gRPC – High-performance communication.
5️⃣ Authentication & Security
JWT (JSON Web Token) – Secure user authentication.
OAuth 2.0 – Third-party authentication (Google, Facebook).
Hashing & Encryption – Protecting user data (bcrypt, AES).
CORS & CSRF Protection – Prevent security vulnerabilities.
6️⃣ Server & Hosting
Cloud Providers – AWS, Google Cloud, Azure.
Serverless Computing – AWS Lambda, Firebase Functions.
Docker & Kubernetes – Containerization and orchestration.
7️⃣ Caching & Performance Optimization
Redis & Memcached – Fast data caching.
Load Balancing – Distribute traffic efficiently.
CDN (Content Delivery Network) – Faster content delivery.
8️⃣ DevOps & Deployment
CI/CD Pipelines – GitHub Actions, Jenkins, GitLab CI.
Monitoring & Logging – Prometheus, ELK Stack.
Version Control – Git, GitHub, GitLab.
Like it if you need a complete tutorial on all these topics! 👍❤️
Web Development Best Resources
ENJOY LEARNING 👍👍
❤3
List of Top 12 Coding Channels on WhatsApp:
1. Python Programming:
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1. Python Programming:
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2. Coding Resources:
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3. Coding Projects:
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4. Coding Interviews:
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5. Java Programming:
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6. Javascript:
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10. Machine Learning:
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11. SQL:
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12. GitHub:
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Here are some of the top Python frameworks for web development:
1. Django: A high-level framework that encourages rapid development and clean, pragmatic design. It includes a built-in admin interface, ORM, and many other features.
2. Flask: A micro-framework that is lightweight and easy to set up, making it a popular choice for small to medium-sized projects. It provides the essentials and leaves the rest to extensions.
3. FastAPI: Known for its high performance and ease of use, FastAPI is ideal for building APIs. It supports asynchronous programming and is built on standard Python type hints.
4. Pyramid: A flexible framework that can be used for both small applications and large-scale projects. It provides a minimalistic core with optional add-ons for added functionality.
5. Tornado: Designed for handling large numbers of simultaneous connections, making it a good choice for applications that require real-time capabilities.
6. Bottle: A very lightweight micro-framework that is perfect for small web applications. It is contained in a single file and has no dependencies other than the Python Standard Library.
7. CherryPy: An object-oriented framework that allows developers to build web applications in a similar way to writing other Python programs. It is minimalistic and easy to use.
8. Web2py: A full-stack framework that includes an integrated development environment, a web-based interface, and a web server. It emphasizes ease of use and rapid development.
9. Sanic: An asynchronous framework built for speed. It is designed to handle large volumes of traffic and is well-suited for building fast APIs.
10. Falcon: Another framework focused on building fast APIs. Falcon is lightweight and focuses on performance and reliability.
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1. Django: A high-level framework that encourages rapid development and clean, pragmatic design. It includes a built-in admin interface, ORM, and many other features.
2. Flask: A micro-framework that is lightweight and easy to set up, making it a popular choice for small to medium-sized projects. It provides the essentials and leaves the rest to extensions.
3. FastAPI: Known for its high performance and ease of use, FastAPI is ideal for building APIs. It supports asynchronous programming and is built on standard Python type hints.
4. Pyramid: A flexible framework that can be used for both small applications and large-scale projects. It provides a minimalistic core with optional add-ons for added functionality.
5. Tornado: Designed for handling large numbers of simultaneous connections, making it a good choice for applications that require real-time capabilities.
6. Bottle: A very lightweight micro-framework that is perfect for small web applications. It is contained in a single file and has no dependencies other than the Python Standard Library.
7. CherryPy: An object-oriented framework that allows developers to build web applications in a similar way to writing other Python programs. It is minimalistic and easy to use.
8. Web2py: A full-stack framework that includes an integrated development environment, a web-based interface, and a web server. It emphasizes ease of use and rapid development.
9. Sanic: An asynchronous framework built for speed. It is designed to handle large volumes of traffic and is well-suited for building fast APIs.
10. Falcon: Another framework focused on building fast APIs. Falcon is lightweight and focuses on performance and reliability.
Free Resources to learn web development https://t.iss.one/free4unow_backup/554
Web Development Best Resources: https://topmate.io/coding/930165
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❤2