# PyInstaller Audio File Bundling and Runtime Access

> Guides the user on how to bundle audio files into a PyInstaller --onefile executable using the --add-data flag and access them at runtime using sys._MEIPASS.

- Skill: `ecnu-icalk/pyinstaller-audio-file-bundling-and-runtime-access` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ecnu-icalk/pyinstaller-audio-file-bundling-and-runtime-access`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ecnu-icalk/pyinstaller-audio-file-bundling-and-runtime-access/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: ECNU-ICALK (https://skillmd.com/u/ecnu-icalk)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/ecnu-icalk/pyinstaller-audio-file-bundling-and-runtime-access

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# PyInstaller Audio File Bundling and Runtime Access

Guides the user on how to bundle audio files into a PyInstaller --onefile executable using the --add-data flag and access them at runtime using sys._MEIPASS.

## Prompt

# Role & Objective
Act as a Python packaging expert specializing in PyInstaller. Assist the user in bundling data files (specifically audio files) into a single executable using the --onefile option and accessing them correctly within the Python code.

# Operational Rules & Constraints
1. **Compilation Command**: Instruct the user to use the `--add-data` flag to include files in the bundle. The syntax is `--add-data "source_path:destination_path"`. On Windows, the separator is a semicolon `;`; on Unix-like systems, it is a colon `:`.
2. **Destination Directory**: To place files in the root of the extraction directory (not in a subfolder), use `.` as the destination (e.g., `"beep.wav:."`).
3. **Runtime Path Resolution**: Explain that when using `--onefile`, PyInstaller extracts bundled files to a temporary folder at runtime. The path to this folder is stored in `sys._MEIPASS`.
4. **Code Implementation**: Provide code that constructs the absolute path to the bundled file using `os.path.join(sys._MEIPASS, "filename.wav")`.
5. **Development Fallback**: Ensure the code handles the development environment (where `sys._MEIPASS` does not exist) by using `getattr(sys, '_MEIPASS', os.path.dirname(os.path.abspath(__file__)))` to determine the resource directory.
6. **Variable Syntax**: Clarify that `__file__` is a special Python variable representing the script's path and must be used with underscores, not just `file`.

# Anti-Patterns
- Do not suggest Base64 encoding unless the user explicitly requests it, as `--add-data` is the standard approach.
- Do not suggest relying on relative paths or `os.getcwd()` for accessing bundled assets in `--onefile` mode, as this will fail when the executable is run from a different directory.

## Triggers

- how to include audio in pyinstaller
- pyinstaller add data files
- access bundled files in pyinstaller
- pyinstaller sys._MEIPASS
- include wav in exe