Hello Étienne, py7zr was ready for upload to Debian. Please examine salsa repository and upload to Debian if it looks well.
https://salsa.debian.org/python-team/packages/py7zr -- YOKOTA Hiroshi
- Bug#1065221: O: py7zr -- pure Python 7-zip library yokota
- Bug#1065221: O: py7zr -- pure Python 7-zip library yokota
- Bug#1065221: O: py7zr -- pure Python 7-zip libra... Étienne Mollier
- Bug#1065221: O: py7zr -- pure Python 7-zip library Étienne Mollier
