Missing voluptous package

[andig]

After running pip3 install -r requirements.txt:

Installing collected packages: oauthlib, requests_oauthlib
  DEPRECATION: Configuring installation scheme with distutils config files is deprecated and will no longer work in the near future. If you are using a Homebrew or Linuxbrew Python, please see discussion at https://github.com/Homebrew/homebrew-core/issues/76621
  DEPRECATION: Configuring installation scheme with distutils config files is deprecated and will no longer work in the near future. If you are using a Homebrew or Linuxbrew Python, please see discussion at https://github.com/Homebrew/homebrew-core/issues/76621
DEPRECATION: Configuring installation scheme with distutils config files is deprecated and will no longer work in the near future. If you are using a Homebrew or Linuxbrew Python, please see discussion at https://github.com/Homebrew/homebrew-core/issues/76621
Successfully installed oauthlib-3.2.0 requests_oauthlib-1.3.1
Traceback (most recent call last):
  File "/Users/andig/htdocs/kamereon-python/kamereon/__init__.py", line 6, in <module>
    import voluptuous as vol
ModuleNotFoundError: No module named 'voluptuous'

and

Traceback (most recent call last):
  File "/Users/andig/htdocs/kamereon-python/kamereon/__init__.py", line 8, in <module>
    from homeassistant.const import (
ModuleNotFoundError: No module named 'homeassistant'