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Python Code Samples

Copy-ready Python snippets by topic and difficulty — short, focused, and runnable in the browser editor.

2 matches
Microservices patterns easy

How to Mock Eventual Consistency UI Notes in Python

Simulates a UI note that shows local state until a pending server update is confirmed, mocking eventual consistency behavior in distributed systems.

eventual-consistency microservices ui
Python
class EventualConsistencyNote:
    def __init__(self, entity_id, note):
        self.entity_id = entity_id
        self.note = note
        self.confirmed = False
        self.pending_updates = []

    def add_pending_update(self, update):
        self.pending_updates.append(update)

    def confirm_update(self):
    …
17 0 Open
Database scaling & optimization medium

How to Implement Read-After-Write Consistency Mock in Python

Simulate strong versus eventual read-after-write consistency with a primary and replica store, demonstrating the difference in data visibility over time.

consistency replication mock
Python
import time


class MockStorage:
    def __init__(self, write_delay=0.1):
        self.store = {}
        self.replica = {}
        self.write_delay = write_delay

    def write(self, key, value):
        # Write to primary storage immediately
        self.store[key] = value
        # Simulate async replication delay
…
13 0 Open

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