How-tos
Debug Python Crash Logs with faulthandler
Learn how to use Python's built-in faulthandler module to capture segfaults and silent crashes, giving you stack traces for fast debugging of C extension issues.
How-tos
How Message Queues Decouple Microservices
Learn how message queues improve microservices reliability and scalability by introducing an asynchronous buffer between services. Includes a practical Python example using Redis.
How-tos
Debug Python Memory Leaks with tracemalloc
Learn how to use Python's built-in tracemalloc module to find and fix memory leaks in your code, with practical examples and real-world debugging strategies.
How-tos
CPU Profiling Python with perf
Learn how to profile Python CPU performance using Linux's perf tool to capture real CPU hotspots, kernel activity, and hidden bottlenecks that standard profilers miss.
How-tos
Find Dead Python Code with the AST Module
Learn how to use Python's built-in ast module to detect unused functions and variables in your codebase. A practical guide to building a lightweight dead code detector with …
How-tos
How Docker Layers Optimize Images
Learn how Docker layers work, why they can bloat images, and how to write efficient Dockerfiles that cache effectively and reduce size using multi-stage builds and slim base …
How-tos
Optimize Python Docker Images for Size
Learn practical techniques to shrink Python Docker images from 500 MB to under 200 MB using base image selection, multi-stage builds, pip cache cleanup, and .dockerignore strategies.
How-tos
Profile Python I/O Bottlenecks with iotop
Learn how to use iotop to identify disk I/O bottlenecks in Python scripts, with real-world examples and practical fixes for speeding up slow file operations.
How-tos
Stop Writing Amateur Python Logs: Use structlog Instead
Learn how to replace flat, unstructured logs with structured, context-rich logging using structlog in Python. This guide walks you through setup, production configuration, and real-world usage patterns.
How-tos
How to Audit Python Imports for Security Risks
Learn a step-by-step process to audit your Python dependencies for known vulnerabilities, typosquatting, and suspicious behavior, using tools like pip-audit and safety.
How-tos
Profile Python Memory Usage with memory_profiler
Learn how to use memory_profiler to track Python memory usage line by line, spot leaks, and optimize your code with practical examples and memory plots.
How-tos
How to Use pdb in Python for Debugging
A practical guide to using Python's built-in pdb debugger instead of print statements. Learn essential commands, conditional breakpoints, and real-world debugging techniques.