Posts tagged “python”

Handle Missing YouTube Transcripts Gracefully

Learn how to detect, handle, and recover from missing or disabled YouTube transcripts in your API pipeline with Python and JavaScript examples.

David Boulen · 7/28/2026 · 8 min read

Summarize Entire YouTube Playlists with AI

Fetch every video in a YouTube playlist, batch-pull transcripts via API, chunk the text, and pipe it into an LLM to produce per-video and full-playlist summaries.

David Boulen · 7/24/2026 · 8 min read

Multilingual YouTube Subtitle Translator API

Fetch YouTube transcripts as JSON, pipe segments into DeepL or GPT, and export SRT/VTT subtitles in any of 125+ languages. Step-by-step with Python and Node.js.

David Boulen · 7/20/2026 · 9 min read

From Transcript JSON to Clean Text: Parsing Tips

Raw YouTube transcript JSON is noisy and unpunctuated. Learn how to strip artifacts, merge segments, and prepare clean text for LLMs, search, and NLP.

David Boulen · 7/17/2026 · 9 min read

Caching YouTube Transcripts to Cut API Costs

Learn how to cache YouTube transcript API responses in Python to reduce credit usage by 70-90%, with TTL strategies, cache key design, and invalidation patterns.

David Boulen · 7/12/2026 · 9 min read

Generate SRT and VTT Subtitles from YouTube Videos

Convert YouTube transcript JSON into SRT and VTT subtitle files with Python and JavaScript. Includes timing format gotchas, line-length rules, and accessibility best practices.

David Boulen · 7/8/2026 · 10 min read

5 OSS YouTube Transcript Libraries and Their Limits

Compare the top open-source YouTube transcript libraries—youtube-transcript-api, yt-dlp, pytube, and more—plus when to switch to a managed API.

David Boulen · 7/7/2026 · 7 min read

YouTube Transcript API: Build a Video Summarizer with GPT

Build a YouTube video summarizer API with GPT: fetch clean transcripts, chunk tokens, craft structured prompts, and cache results for production use.

David Boulen · 6/22/2026 · 11 min read

Why youtube-transcript-api Gets Blocked (and What to Do)

youtube-transcript-api breaks on cloud IPs due to ASN-level blocking & PoToken challenges. Learn the 3 failure modes and how to fix them.

David Boulen · 6/21/2026 · 8 min read