Posted injson Python modules
Using json.detect_encoding for Encoding Detection
Heuristic character encoding detection for BOM-less data using Python's charset-normalizer. A tiered strategy vs. json.detect_encoding for handling non-UTF-8 data.
Posted inPython modules SciPy
Spatial Data Structures and Algorithms with scipy.spatial
K-d tree for efficient range search and query ball problems. SciPy's `query_ball_point` finds all points within a radius, outperforming brute-force O(n²) loops.
Posted inPandas Python modules
Sorting Data with pandas.DataFrame.sort_values
Pandas sort_values performance guide. Compare quicksort, mergesort, heapsort. Stable vs unstable sort. O(n log n) complexity, data types, memory impact.
Posted inPillow (PIL Fork) Python modules
Image Histograms and Statistics with Pillow
Python Pillow contrast correction for low contrast photos. Contrast stretching with ImageOps.autocontrast & histogram equalization with ImageOps.equalize.
Posted inFlask Python modules
Serving JSON Data with Flask
Flask API error handling for JSON. Custom JSON error responses for 404 and 500 status codes using @app.errorhandler instead of Flask's default HTML pages.
Posted inPython modules Requests
Using Request Hooks for Event Handling in Requests
Python requests Session stateful hooks using a callable class. Maintain state across requests for API metrics, monitoring, and request/response lifecycle control.
Posted inmath Python modules
Understanding math.tanh for Hyperbolic Tangent Function
Tanh activation function saturation and the vanishing gradient problem. Analysis of the tanh derivative in neural network backpropagation with Python code examples.
Posted inPython modules scikit-learn
Customizing Scoring and Evaluation Metrics in scikit-learn
The simple scorer you forged was a solid piece of work. It took y_true and y_pred and produced a number that meant something to the business. A fine tool. But some jobs require more specialized instruments. A simple comparison of...
Posted indatetime Python modules
Using datetime.datetime.now to Get Current Date and Time
Python datetime timezone issues. Use aware objects with the zoneinfo module. Convert to UTC for storage to fix ambiguity and prevent TypeError when mixing datetimes.
Posted inPygame Python modules
Implementing Physics and Gravity in Pygame
Pygame time-based physics using delta time (dt) for frame rate independence. Decouple simulation from rendering for a robust, deterministic game update loop.
