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Python Memory Safe Scripts

Category: Engineering  ·  Sub-category: languages  ·  Last updated:
lang:pythontype:review
Memory-safe Python script patterns for long-running processes under systemd MemoryMax constraints. Covers allocator purge (mimalloc/glibc malloc_trim), HTTP response lifecycle, DataFrame cleanup, thread-local connection reuse, and periodic GC cadence. Battle-tested through 5 OOM optimization cycles on production GPU workstations. Use this skill proactively whenever writing or reviewing Python scripts that: run under systemd with MemoryMax, process data in loops (downloads, ETL, backfill), use ThreadPoolExecutor, or make repeated HTTP requests. Also use when diagnosing OOM kills, RSS creep, or fd exhaustion in Python services. TRIGGERS - memory optimization, OOM prevention, RSS reduction, malloc_trim, systemd MemoryMax, memory leak, allocator purge, memory-safe script, RSS creep, fd exhaustion, SIGKILL status 9, MemoryHigh, glibc arena, mimalloc purge, requests memory leak, ThreadPoolExecutor cleanup.

From the source SKILL.md

Battle-tested patterns for keeping Python scripts alive under systemd MemoryMax constraints. Extracted from repair_direct_parquet.py (24-worker parallel repair) and exness_tick_cache_seeder.py (10-symbol daily seeder) after 5 OOM optimization cycles on a 62 GB GPU workstation.

What this skill does

Python Memory Safe Scripts is a community-contributed Claude Code skill in the languages sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/python-memory-safe-scripts/ and loads when your prompt matches the skill's trigger.

When to invoke it: use when diagnosing OOM kills, RSS creep, or fd exhaustion in Python services. TRIGGERS - memory optimization, OOM prevention, RSS reduction, malloc_trim, systemd MemoryMax, memory leak, allocator purge, memory-safe script, RSS creep, fd exhaustion, SIGKILL status 9, MemoryHigh, glibc arena, mimalloc purge, requests memory leak, ThreadPoolExecutor cleanup.

Who uses this skill

The Python Memory Safe Scripts Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 69,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/python-memory-safe-scripts
curl -L https://claudskills.com/skills/python-memory-safe-scripts/SKILL.md \
  -o ~/.claude/skills/python-memory-safe-scripts/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/python-memory-safe-scripts/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/python-memory-safe-scripts/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\python-memory-safe-scripts\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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Attribution & license

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