python

Polars row-wise comparisons with nulls: is_in vs struct and multi-key join, pandas-like behavior

Nov. 1, 11:00

Altair layered bar charts: fix X-axis sorting with error bars using EncodingSortField

Nov. 1, 09:00

Selenium + Python 3.11 in Chrome: Prevent Duplicate Tabs on Click and Stabilize Window Handles

Nov. 1, 07:00

SymPy Custom Functions and Modular Arithmetic: Implement _eval_Mod Instead of __mod__

Nov. 1, 05:00

Fix pip build isolation on air-gapped servers: resolve setuptools error for offline Python installs

Nov. 1, 03:00

Polars LazyFrame sampling without out-of-memory: stream-safe random selection with index gather

Nov. 1, 01:00

Python static typing: descriptors with overloads for different class vs instance attribute types

Oct. 31, 23:00

Pandas conditional forward fill: propagate colC from latest colA==3 into colA==4 rows with masking

Oct. 31, 21:00

DQN with RNNs in TorchRL: Preventing Cross-Episode Leakage with Done Masks and SliceSampler

Oct. 31, 13:00

Generate Log-Normal Signals with Blue/Violet PSD: Why Exponentiation Fails and IAAFT Works

Oct. 31, 11:00

Is This Python List Reverse In-Place? O(1) Space vs Temporary Buffers, Recursion, and Definitions

Oct. 31, 09:00

Corpus-Aware Caching for Legal Q&A Chatbots: Prevent Stale LLM Answers After Vector Store Updates

Oct. 31, 07:00

Plotly + ipywidgets in Jupyter: Why Only the Last Chart Shows and How to Render All Figures

Oct. 31, 05:00

Stop Hand-Crafting JSON in Python requests: Build dicts and serialize with json.dumps

Oct. 31, 03:00

Python argparse and per-file options: designing an ffmpeg-style CLI and a workable preprocessing fix

Oct. 31, 01:00

Ruff in GitHub Actions: enforce strict linting by selecting ALL rules and stop whitespace leaks

Oct. 30, 23:00

Pydantic 2 JSON Schema: Prevent dynamic defaults in nested models with BaseModel.construct

Oct. 30, 21:00

Flatten Deeply Nested JSON to a Single Row in Python: Beyond pandas.json_normalize and explode

Oct. 30, 19:00

Matplotlib Secondary Axis: Align Ticks with Primary, Avoid twinx/twiny, Use True Inverse

Oct. 30, 17:00

AWS Lambda Container Image Timeouts After New ECR Push: Cold Starts, Image Pulls, Fixes

Oct. 30, 15:00

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