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Python Code Samples

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

3 matches
Functions & basics medium

How to Implement a Trampoline for Tail Recursion in Python

This code implements a trampoline decorator that converts tail-recursive functions into iterative loops, allowing deep recursion without hitting Python's recursion limit.

trampoline tail-recursion decorator
Python 
def trampoline(fn):
    """Convert a tail-recursive function into an iterative loop."""
    def wrapper(*args, **kwargs):
        result = fn(*args, **kwargs)
        while callable(result):
            result = result()
        return result
    return wrapper

@trampoline
def factorial(n, acc=1):
    """Tail-recursi…
11 0 Open
System design patterns medium

How to Build a Pipe and Filter Text Processing Chain in Python

A functional pipe-and-filter chain that transforms text through uppercase, whitespace normalization, number removal, stopword filtering, and file export.

pipeline text-processing functional
Python 
import re
import sys


def pipe_filter_chain(stream):
    def uppercase(text):
        return text.upper()

    def strip_whitespace(text):
        return " ".join(text.split())

    def remove_numbers(text):
        return re.sub(r"\d+", "", text)

    def remove_stopwords(text, stopwords={"the", "and", "of", "in"}):…
16 0 Open
Reliability & rate limiting medium

How to Implement Graceful Degradation with Feature Disabling in Python

A pattern that disables enhanced features and falls back to basic functionality when a dependency fails, with mock-based testing.

graceful-degradation feature-flags resilience
Python 
import random
from unittest.mock import patch


class EnhancedFeature:
    """A feature that can gracefully degrade when a dependency is unavailable."""

    def __init__(self):
        self.feature_enabled = True

    def get_enhanced_data(self):
        """Simulate an enhanced feature that depends on external data."…
12 0 Open

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