ImportError: No module named 'pyaudioop' on Python 3.13 – audioop removed, no pip package available

[space-contributes]

Downgrading Python does not work

## Description

Running Pydub on Python 3.13 fails at import time due to missing `audioop` / `pyaudioop`.

Error:

ModuleNotFoundError: No module named 'pyaudioop'

Traceback points to:

File "pydub/utils.py", line 16, in
import pyaudioop as audioop

## Environment

- Python version: 3.13.0
- OS: Windows 10
- Pydub version: 0.25.1 (latest from PyPI)

## Steps to Reproduce

1. Install Python 3.13
2. `pip install pydub`
3. Run:
   ```python
   from pydub import AudioSegment

Expected Behavior

Pydub should import successfully without requiring unavailable modules.

Actual Behavior

Fails with:

ModuleNotFoundError: No module named 'pyaudioop'

Notes

• Python 3.13 removed the stdlib audioop module (PEP 594).

• Pydub currently tries to import pyaudioop, but:

  • audioop is gone from stdlib
  • pyaudioop is not installable via pip on Python 3.13 (no wheels, build fails).

• This leaves Pydub completely broken on Python 3.13 with no pip-installable fix.

Possible Fixes

• Vendor or bundle the audioop functionality Pydub depends on
• Or mark pyaudioop as a required dependency and ensure wheels are published for Python 3.13
• Or add a graceful fallback so Pydub works without audioop features

POSSIBLE PR

OLD

#import pyaudioop as audioop

NEW

try:
import audioop
except ImportError:
try:
import pyaudioop as audioop
except ImportError:
audioop = None # Gracefully disable audioop-dependent features

---

Add pyaudioop as an optional dependency (so builds don’t break when no wheel is available):

[project.optional-dependencies]
audio = ["pyaudioop>=0.1.0"]

Workarounds

• Downgrading to Python 3.12 resolves the issue
• There is currently no pip-installable way to get audioop/pyaudioop on Python 3.13

---

[space-contributes]

It has been days and the issue is not resolved.

[thelabcat]

Install audioop-lts.

[space-contributes]

Same error on the local machine. Colab fails to locate the package (noteworthy).

[benfairless]

There is more discussion about this in #815.

[space-contributes]

@benfairless , it is mentioned in that issue ( #815 )* that "audioop-lts" is the new updated package, which is not found after doing pip install audioop-lts, as the maintainer for Arby Audio.

*Had to put the space in the brackets because GitHub was taking another issue otherwise.