Post #1330

Python CheatSheet 📚✅ 1. Basic Syntax - Print Statement: print("Hello, World!") - Comments: # This is a comment 2. Data Types - Integer: x = 10 - Float: y = 10.5 - String: name = "Alice" - List: fruits = ["apple", "banana", "cherry"] - Tuple: coordinates = (10, 20) - Dictionary: person = {"name": "Alice", "age": 25} 3. Control Structures - If Statement: if x > 10: print("x is greater than 10") - For Loop: for fruit in fruits: print(fruit) - While Loop: while x < 5: x += 1 4. Functions - Define Function: def greet(name): return f"Hello, {name}!" - Lambda Function: add = lambda a, b: a + b 5. Exception Handling - Try-Except Block: try: result = 10 / 0 except ZeroDivisionError: print("Cannot divide by zero.") 6. File I/O - Read File: with open('file.txt', 'r') as file: content = file.read() - Write File: with open('file.txt', 'w') as file: file.write("Hello, World!") 7. List Comprehensions - Basic Example: squared = [x**2 for x in range(10)] - Conditional Comprehension: even_squares = [x**2 for x in range(10) if x % 2 == 0] 8. Modules and Packages - Import Module: import math - Import Specific Function: from math import sqrt 9. Common Libraries - NumPy: import numpy as np - Pandas: import pandas as pd - Matplotlib: import matplotlib.pyplot as plt 10. Object-Oriented Programming - Define Class: class Dog: def __init__(self, name): self.name = name def bark(self): return "Woof!" 11. Virtual Environments - Create Environment: python -m venv myenv - Activate Environment: - Windows: myenv\Scripts\activate - macOS/Linux: source myenv/bin/activate 12. Common Commands - Run Script: python script.py - Install Package: pip install package_name - List Installed Packages: pip list This Python checklist serves as a quick reference for essential syntax, functions, and best practices to enhance your coding efficiency! Checklist for Data Analyst: https://dataanalytics.beehiiv.com/p/data Here you can find essential Python Interview Resources👇 https://t.me/DataSimplifier Like for more resources like this 👍♥️ Share with credits: https://t.me/sqlspecialist Hope it helps :)