etesync-dav 0.33.4 - Missing scrypt module on macOS

[odkr]

System

$ rustc --version
rustc 1.82.0 (f6e511eec 2024-10-15) (Homebrew)
$ uname -mor
Darwin 23.6.0 arm64
$ python3 --version
Python 3.9.6

Installation

python3 -mvenv target
. ./target/bin/activate
pip install --upgrade pip
git clone https://github.com/etesync/etebase-py.git
pip install ./etebase-py
git clone https://github.com/etesync/etesync-dav.git
pip install ./etesync-dav

Error

$ etesync-dav
Traceback (most recent call last):
  File "/Users/odin/.local/opt/etesync-dav/lib/python3.9/site-packages/etesync/crypto.py", line 24, in <module>
    from hashlib import scrypt
ImportError: cannot import name 'scrypt' from 'hashlib' (/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/hashlib.py)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/odin/.local/opt/etesync-dav/lib/python3.9/site-packages/etesync/crypto.py", line 35, in <module>
    import scrypt
ModuleNotFoundError: No module named 'scrypt'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/odin/.local/opt/etesync-dav/bin/etesync-dav", line 10, in <module>
    from etesync_dav.manage import Manager
  File "/Users/odin/.local/opt/etesync-dav/lib/python3.9/site-packages/etesync_dav/manage.py", line 22, in <module>
    import etesync as api
  File "/Users/odin/.local/opt/etesync-dav/lib/python3.9/site-packages/etesync/__init__.py", line 15, in <module>
    from .api import *
  File "/Users/odin/.local/opt/etesync-dav/lib/python3.9/site-packages/etesync/api.py", line 20, in <module>
    from .crypto import CryptoManager, AsymmetricCryptoManager, AsymmetricKeyPair, derive_key, CURRENT_VERSION
  File "/Users/odin/.local/opt/etesync-dav/lib/python3.9/site-packages/etesync/crypto.py", line 46, in <module>
    import pyscrypt
ModuleNotFoundError: No module named 'pyscrypt'

I'll add a conditional dependency in setup.py and file a PR.