Reference library

Python Code Samples

Medium snippets you can copy, study, and run in the browser editor.

4 matches
Comprehensions & generators medium

How to Build a Backpressure Generator Pause Producer Demo in Python

Demonstrates a producer–consumer pattern with a fixed-size buffer that pauses production when full, simulating backpressure.

backpressure producer-consumer deque
Python 
import time
import collections

def producer(buffer, max_size, items):
    """Adds items to the buffer until full, then pauses."""
    for item in items:
        while len(buffer) >= max_size:
            print(f"Buffer full ({len(buffer)}/{max_size}) — producer paused")
            time.sleep(0.1)
        buffer.appe…
14 0 Open
Caching & Redis medium

Redis-inspired sliding window rate limiter in Python

A pure-Python sliding window rate limiter using a deque of timestamps, mock-ready for Redis-backed production limits.

redis rate-limit sliding-window
Python 
import time
from collections import deque


class SlidingWindowRateLimiter:
    def __init__(self, max_requests: int, window_seconds: int) -> None:
        self.max_requests = max_requests
        self.window_seconds = window_seconds
        self.requests: dict[str, deque] = {}

    def is_allowed(self, client_id: str…
14 0 Open
ML engineering pipelines medium

How to Stage ML Model Workflows with Python Classes

Defines a Stage class to model ML pipeline stages with variants and mocks, printing grammar for Model, Staging, and Production stages.

ml-pipelines stages model-deployment
Python 
class Stage:
    def __init__(self, name):
        self.name = name
        self.mocks = []
        self.variants = []

    def add_mock(self, mock_name):
        self.mocks.append(mock_name)

    def add_variant(self, variant_name, productions=()):
        self.variants.append((variant_name, list(productions)))

    …
12 0 Open
Production deployment patterns medium

How to Simulate Blue-Green Deployment Switch in Python

A mock Blue-Green deployment class that deploys new versions to an inactive environment, runs a health check, switches traffic, and supports rollback in Python.

deployment blue-green mock
Python 
import random
import time

class BlueGreenDeployment:
    def __init__(self, initial_env="blue"):
        self.environments = {"blue": "v1.0", "green": "v1.0"}
        self.active_env = initial_env
        self.running = True

    def deploy_new_version(self, version, target_env):
        if target_env == self.active_…
16 0 Open

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PythonSkillset code samples are short, focused examples organised by topic and difficulty. Every snippet is server-rendered HTML — readable by search engines and easy to copy. Open any sample, read the notes, copy the code, then press Try in editor to run it in the browser with Pyodide.

How to use this library

  1. Pick a topic section — strings, lists, files, functions, and more
  2. Open a sample, read How it works, and copy the code block
  3. Run it in the IDE, tweak values, then take a related quiz or tutorial lesson

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Samples are quick reference — one concept per page. For step-by-step teaching, use our Python tutorials. To test yourself, try quizzes or coding challenges. Clean up style with the Python formatter.

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