PYTHON BACKEND DEVELOPMENT · DAY 041
Testing Django apps with pytest: lessons from production
Expona Admin · Oct 27, 2026 · 7 min read
Tag · 460 articles · 1 interview series
#Testing
Practical Testing articles, guides and code examples from the Expona engineering blog.
Articles
460 articles
PYTHON BACKEND DEVELOPMENT · DAY 046
Repository pattern in Python: what developers should know
Expona Admin · Oct 27, 2026 · 7 min read
PYTHON BACKEND DEVELOPMENT · DAY 050
Calling HTTP APIs with httpx: what developers should know
Expona Admin · Oct 27, 2026 · 7 min read
PYTHON BACKEND DEVELOPMENT · DAY 057
pytest fixtures explained: practical tips and trade-offs
Expona Admin · Oct 27, 2026 · 7 min read
PYTHON BACKEND DEVELOPMENT · DAY 058
Mocking in Python tests: real-world lessons and examples
Expona Admin · Oct 27, 2026 · 8 min read
PYTHON BACKEND DEVELOPMENT · DAY 059
Integration tests with Testcontainers in Python explained
Expona Admin · Oct 27, 2026 · 7 min read
PYTHON BACKEND DEVELOPMENT · DAY 066
Python API deployment options: best practices explained
Expona Admin · Oct 27, 2026 · 7 min read
PYTHON BACKEND DEVELOPMENT · DAY 078
Python interview questions: fundamentals for production
Expona Admin · Oct 27, 2026 · 6 min read
PYTHON BACKEND DEVELOPMENT · DAY 088
Upgrading Python versions safely: lessons from production
Expona Admin · Oct 27, 2026 · 6 min read
PYTHON BACKEND DEVELOPMENT · DAY 090
Python backend developer roadmap: lessons from production
Expona Admin · Oct 27, 2026 · 7 min read
PYTHON BACKEND DEVELOPMENT · DAY 093
FastAPI dependency injection for auth and roles explained
Expona Admin · Oct 27, 2026 · 10 min read
PYTHON BACKEND DEVELOPMENT · DAY 097
Python dependency injection without a framework explained
Expona Admin · Oct 27, 2026 · 7 min read
PYTHON BACKEND DEVELOPMENT · DAY 100
100 days of Python backend development: the recap explained
Expona Admin · Oct 27, 2026 · 6 min read
PRACTICAL AI & MACHINE LEARNING · DAY 001
Machine learning for software engineers, explained simply
Expona Admin · Oct 27, 2026 · 8 min read
PRACTICAL AI & MACHINE LEARNING · DAY 008
scikit-learn tutorial: your first model, explained simply
Expona Admin · Oct 27, 2026 · 6 min read
PRACTICAL AI & MACHINE LEARNING · DAY 009
Train, validation and test sets: lessons from production
Expona Admin · Oct 27, 2026 · 6 min read
PRACTICAL AI & MACHINE LEARNING · DAY 018
Overfitting and underfitting: a practical AI & ML guide
Expona Admin · Oct 27, 2026 · 8 min read
PRACTICAL AI & MACHINE LEARNING · DAY 024
Data leakage: the silent model killer, explained simply
Expona Admin · Oct 27, 2026 · 8 min read
PRACTICAL AI & MACHINE LEARNING · DAY 025
Hyperparameter tuning in Practical AI & Machine Learning
Expona Admin · Oct 27, 2026 · 7 min read
PRACTICAL AI & MACHINE LEARNING · DAY 041
Chunking strategies for RAG: what developers should know
Expona Admin · Oct 27, 2026 · 7 min read