Ubuntu
fail2ban package

  1. Bug #2055114
  2. Comment #61

Comment 61 for bug 2055114

Revision history for this message
Zhang Huangbin (michaelbibby) wrote :

The error is `ERROR No module named 'asynchat'`. This causes fail2ban failed to start on Ubuntu 24.04.

Module `asynchat` and `asyncore` have been removed since Python 3.12, so all Python applications which require `asynchat` and/or `asyncore` must either ship them internally, or ask users to install them manually.

- https://pypi.org/project/pyasynchat/
- https://pypi.org/project/pyasyncore/

These 2 packages are mentioned in Fail2ban README document:
https://github.com/fail2ban/fail2ban/blob/master/README.md?plain=1#L46

And Fail2ban-1.1.0 ships them internally:
https://github.com/fail2ban/fail2ban/tree/master/fail2ban/compat

Original bug report is all about "asynchat", but it's not yet fixed.