Python HMAC: Verify Webhook Signatures Safely
Authenticate shared-secret messages and compare signatures without content-dependent shortcuts.
Learn Python by building
Knowledge library
Explore our technical articles, practical tutorials, and career guides.
The fuel for your journey in the Python Universe.
Latest articles
12 articles on this pagePython hashlib: Hashing and File Integrity
Compute reproducible digests that detect file changes without loading entire files into memory.
Python shutil: Copy, Move, and Archive Files
Automate copies and archives with explicit checks for sources, destinations, and security.
Python tempfile: Safe Temporary Files and Folders
Create temporary workspaces without predictable names and clean them even when exceptions occur.
Python CSV with DictReader and DictWriter
Process CSV files by column name while controlling encoding, dialect, and validation.
Python statistics: Mean, Median, and Quantiles
Summarize numeric datasets with appropriate measures without hiding meaningful outliers.
Python graphlib: Topological Sorting for Tasks
Turn task dependencies into a valid execution order and detect cycles before work starts.
Python queue: Thread-Safe Producer and Consumer
Coordinate producers and consumers across threads without manually locking shared lists.
VCR.py for Python Tests: Record HTTP Interactions
Replay HTTP integrations from versioned cassettes without exposing tokens or turning sensitive data into fixtures.
Async SQLAlchemy in Python: Engine and AsyncSession
Configure asynchronous engines and sessions with explicit transactions and no shared state between concurrent tasks.
Testing FastAPI with TestClient and Overrides
Test FastAPI routes through their HTTP contract and replace external dependencies with guaranteed cleanup.
Python aiohttp: Build an Async HTTP Client
Reuse connections with ClientSession, configure deadlines, and bound concurrency when consuming APIs.