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[Tommi Rantala <tt.rantala@xxxxxxxxx>]

Public bug reported:

With Python 3.7 this FutureWarning is seen e.g. in VM serial console:

[    4.321959] cloud-init[728]: /usr/lib/python3.7/site-packages/cloudinit/config/cc_rsyslog.py:205: FutureWarning: Possible nested set at position 23
[    4.323230] cloud-init[728]:   r'^(?P<proto>[@]{0,2})'

I think it's fixable by changing [[] to [\[] in the HOST_PORT_RE regex
in cc_rsyslog.py.

https://docs.python.org/dev/whatsnew/3.7.html#re

** Affects: cloud-init
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1816967

Title:
  cc_rsyslog.py:205: FutureWarning: Possible nested set at position 23

Status in cloud-init:
  New

Bug description:
  With Python 3.7 this FutureWarning is seen e.g. in VM serial console:

  [    4.321959] cloud-init[728]: /usr/lib/python3.7/site-packages/cloudinit/config/cc_rsyslog.py:205: FutureWarning: Possible nested set at position 23
  [    4.323230] cloud-init[728]:   r'^(?P<proto>[@]{0,2})'

  I think it's fixable by changing [[] to [\[] in the HOST_PORT_RE regex
  in cc_rsyslog.py.

  https://docs.python.org/dev/whatsnew/3.7.html#re

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