@mruffalo

This is about distribution provided packages only, installed system-wide. Not 
about binaries side installed from wheels from third-party providers. Can you 
test using
   $ sudo apt install python3-psycopg2

Without any wheels installed from pypi...

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https://bugs.launchpad.net/bugs/1797386

Title:
  [SRU] OpenSSL 1.1.1 to 18.04 LTS

Status in openssl package in Ubuntu:
  Confirmed

Bug description:
  [Impact]

   * OpenSSL 1.1.1 is an LTS release upstream, which will continue to
  receive security support for much longer than 1.1.0 series will.

   * OpenSSL 1.1.1 comes with support for TLS v1.3 which is expected to
  be rapidly adopted due to increased set of supported hashes & algoes,
  as well as improved handshake [re-]negotiation.

   * OpenSSL 1.1.1 comes with improved hw-acceleration capabilities.

   * OpenSSL 1.1.1 is ABI/API compatible with 1.1.0, however some
  software is sensitive to the negotiation handshake and may either need
  patches/improvements or clamp-down to maximum v1.2.

  [Test Case]

   * Rebuild all reverse dependencies

   * Execute autopkg tests for all of them

   * Clamp down to TLS v1.2 software that does not support TLS v1.3
  (e.g. mongodb)

   * Backport TLS v1.3 support patches, where applicable

  [Regression Potential]

   * Connectivity interop is the biggest issues which will be
  unavoidable with introducing TLS v1.3. However, tests on cosmic
  demonstrate that curl/nginx/google-chrome/mozilla-firefox connect and
  negotiate TLS v1.3 without issues.

   * Mitigation of discovered connectivity issues will be possible by
  clamping down to TLS v1.2 in either server-side or client-side
  software or by backporting relevant support fixes

   * Notable changes are listed here
  https://wiki.openssl.org/index.php/TLS1.3

   * Most common connectivity issues so far:
     - client verifies SNI in TLSv1.3 mode, yet client doesn't set hostname. 
Solution is client change to set hostname, or to clamp down the client to 
TLSv1.2.

     - session negotiation is different in TLSv1.3, existing client code
  may fail to create/negotiate/resume session. Clients need to learn how
  to use session callback.

  [Other Info]

   * Previous FFe for OpenSSL in 18.10 is at
     https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/1793092

   * TLS v1.3 support in NSS is expected to make it to 18.04 via
  security updates

   * TLS v1.3 support in GnuTLS is expected to be available in 19.04

   * Test OpenSSL is being prepared in
     https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/3473

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