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claude-code

PythonClaw code_runner

install
source · Clone the upstream repo
git clone https://github.com/ericwang915/PythonClaw
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/ericwang915/PythonClaw "$T" && mkdir -p ~/.claude/skills && cp -r "$T/pythonclaw/templates/skills/dev/code_runner" ~/.claude/skills/ericwang915-pythonclaw-code-runner && rm -rf "$T"
manifest: pythonclaw/templates/skills/dev/code_runner/SKILL.md
source content

Code Runner

When to Use

  • Run or test Python code snippets
  • Evaluate expressions (e.g., "calculate 2^100")
  • Prototype logic or verify algorithms
  • Execute user-provided Python code safely

When NOT to Use

  • Running shell commands or external programs — use 
    run_command
    / terminal
  • Executing non-Python code (JavaScript, etc.)
  • Code requiring heavy I/O, network calls, or persistent state
  • Editing or analyzing code without running it

Setup

No API keys or credentials needed. Uses the bundled 

run_code.py
script.

Usage/Commands

python {skill_path}/run_code.py [options]

Input methods:

MethodExample
Inline code
--code "print(2+2)"
From file
--file script.py
StdinPipe code via stdin

Options:

OptionDescriptionDefault
--timeout N
Max execution time (seconds)30
--format json
Output as JSON (stdout, stderr, exit_code)text
--no-capture
Stream output directlyoff

Notes

  • Code runs in a subprocess (not eval/exec in the agent process) for safety
  • Timeout prevents infinite loops
  • Working directory is the project root
  • For shell commands or other languages, use the terminal directly