[Pkg-matrix-maintainers] Bug#922838: matrix-synapse : Depends: python3-distutils but it is not installable

[sergio]

Package: matrix-synapse
Version: 0.99.0-1~bpo9+2
Severity: important

Dear Maintainer,

# apt -t stretch-backports install matrix-synapse
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 matrix-synapse : Depends: python3-distutils but it is not installable
E: Unable to correct problems, you have held broken packages.

$ apt policy matrix-synapse python3-distutils
matrix-synapse:
  Installed: 0.34.1.1-3~bpo9+1
  Candidate: 0.99.0-1~bpo9+2
  Version table:
     0.99.0-1~bpo9+2 100
        100 https://deb.debian.org/debian stretch-backports/main amd64 Packages
 *** 0.34.1.1-3~bpo9+1 100
        100 /var/lib/dpkg/status
python3-distutils:
  Installed: (none)
  Candidate: (none)
  Version table: