#python
3 items tagged python. ← all topics
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Blog · 2026-09-02
Research and Execution Are Not the Same Program
A systematic trading workflow is really two programs sharing one codebase. What breaks when the boundary between them blurs — and the rule that keeps it enforced.
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Blog · 2026-07-28
Your Position Size Is a Number in a YAML File
A one-line currency check meant a live strategy sized every position from a hardcoded capital figure instead of the real account balance — and it failed silently for months. What the bug was, why it was invisible, and the validator that now sits between signal and submission.
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Blog · 2026-05-12
Python for Algo Trading — A Practical Starting Point
Setting up your first systematic trading script using Python, yfinance, and TA-Lib — from data fetch to basic signal generation.
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