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Python Code Samples

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

3 matches
System design patterns medium

Template Method Workflow Steps Base Class in Python

Define a reusable workflow skeleton in a base class and let subclasses fill in each step with the Template Method design pattern.

template-method design-patterns abc
Python 
from abc import ABC, abstractmethod


class DataPipeline(ABC):
    """Template Method pattern: defines a workflow skeleton."""

    def run(self):
        """Template method - defines the algorithm's structure."""
        result = {"extracted": False, "transformed": False, "loaded": False}
        raw_data = self._ext…
13 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
ML engineering pipelines medium

Mock a Flyte ML workflow in Python

Build a lightweight mock of a Flyte ML pipeline with dataclasses and a simple execution loop that passes outputs between tasks.

flyte ml-pipeline dataclass
Python 
from dataclasses import dataclass, field
from typing import List, Dict, Optional
import time


@dataclass
class FlyteTask:
    name: str
    inputs: Dict = field(default_factory=dict)
    outputs: Dict = field(default_factory=dict)

    def run(self) -> Dict:
        time.sleep(0.1)  # simulate work
        return sel…
16 0 Open

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