Learn Python Coding

✨ autoregressive generation | AI Coding Glossary ✨ 📖 A method in which a model produces a sequence one token at a time, with each token conditioned on all previously generated tokens. 🏷️ #Python

✨ nearest neighbor | AI Coding Glossary ✨ 📖 The data point in a reference set that has the smallest distance to a query point. 🏷️ #Python

✨ Google Antigravity | AI Coding Tools ✨ 📖 An agent-first IDE where AI agents operate the editor, terminal, and browser and produce verifiable Artifacts of their work. 🏷️ #Python

✨ bias | AI Coding Glossary ✨ 📖 A systematic deviation from truth or fairness. 🏷️ #Python

✨ Pydantic AI | AI Coding Tools ✨ 📖 A Python framework for building typed LLM agents leveraging Pydantic. 🏷️ #Python

⚠ Message was hidden by channel owner

⚠ Message was hidden by channel owner

⚠ Message was hidden by channel owner

✨ Meet Our Team ✨ 📖 Meet Real Python's team of expert Python developers, educators, and 190+ contributors bringing real-world experience to create practical Python education. 🏷️ #Python

✨ Topic: Algorithms Tutorials ✨ 📖 Learn Python algorithms: sorting, searching, graphs, DP, Big O. Use heapq, bisect, deque, lru_cache, timeit. Study practical tips and FAQs for interviews. 🏷️ #22_resources

✨ Topic: Python Standard Library ✨ 📖 Practical Python standard library tutorials to master datetime, pathlib, argparse, subprocess, logging, and more. Write faster, cleaner, dependency-free code. 🏷️ #86_resources

✨ vector | AI Coding Glossary ✨ 📖 An ordered array of numbers that represents a point, magnitude, and direction. 🏷️ #Python

✨ evaluation | AI Coding Glossary ✨ 📖 The process of measuring how well an AI system or model meets its objectives. 🏷️ #Python

✨ How to Use Google's Gemini CLI for AI Code Assistance ✨ 📖 Learn how to use Gemini CLI to bring Google's AI-powered coding assistance directly into your terminal to help you analyze and fix code. 🏷️ #intermediate #ai #tools

⚠ Message was hidden by channel owner

⚠ Message was hidden by channel owner

⚠ Message was hidden by channel owner

✨ Quiz: How to Serve a Website With FastAPI Using HTML and Jinja2 ✨ 📖 Review how to build dynamic websites with FastAPI and Jinja2, and serve HTML, CSS, and JS with HTMLResponse and StaticFiles. 🏷️ #intermediate #api #front-end #web-dev

Tip for clean tests in Python: In most cases, your tests should cover: - all happy path scenarios - edge/corner/boundary cases - negative tests - security checks and invalid inputs

import uuid
from dataclasses import dataclass
from typing import Optional


@dataclass
class User:
    username: str


class InMemoryUserRepository:
    def __init__(self):
        self._users = []

    def add(self, user: User) -> None:
        self._users.append(user)

    def search(self, query: Optional[str] = None) -> list[User]:
        if query is None:
            return self._users
        else:
            return [
                user
                for user in self._users
                if query in user.username
            ]


# happy path
def test_search_users_without_query_lists_all_users():
    user1 = User(username="john@doe.com")
    user2 = User(username="marry@doe.com")
    repository = InMemoryUserRepository()
    repository.add(user1)
    repository.add(user2)

    assert repository.search() == [user1, user2]


# happy path
def test_search_users_with_email_part_lists_all_matching_users():
    user1 = User(username="john@doe.com")
    user2 = User(username="bob@example.com")
    user3 = User(username="marry@doe.com")
    repository = InMemoryUserRepository()
    repository.add(user1)
    repository.add(user2)
    repository.add(user3)

    assert repository.search("doe") == [user1, user3]


# edge test case
def test_search_users_with_empty_query_lists_all_users():
    user1 = User(username="john@doe.com")
    user2 = User(username="marry@doe.com")
    repository = InMemoryUserRepository()
    repository.add(user1)
    repository.add(user2)

    assert repository.search("") == [user1, user2]


# negative test case
def test_search_users_with_random_query_lists_zero_users():
    user1 = User(username="john@doe.com")
    repository = InMemoryUserRepository()
    repository.add(user1)

    assert repository.search(str(uuid.uuid4())) == []


# security test
def test_search_users_with_sql_injection_has_no_effect():
    user1 = User(username="john@doe.com")
    repository = InMemoryUserRepository()
    repository.add(user1)

    repository.search("DELETE FROM USERS;")
    assert repository.search() == [user1]

👉 @DataScience4