Commits on Mar 15, 2024

1. Improve speed and stability of Python 3.12 tests in canary build …

   Python 3.12 introduced a new (much faster) way of tracking and
   monitoring execution of python code by tools like coverage tracking
   using sysmon (PEP 669). This however also apparently heavily impacted
   performance of coverage tracking for Python 3.12 when PEP 669 is not
   used. The coverage library since 7.4.0 has an experimental support
   for PEP 669 that can be enabled with COVERAGE_CORE=sysmon env variable
   and a number of users confirmed it fixes the problem.
   
   We are using 7.4.4 coverage already so we should enable this mode
   to speed up our coverage tracking. That should also allow us to
   remove databricks from excluded providers.
   
   See databricks/databricks-sql-python#369
   for databricks case and nedbat/coveragepy#1665
   for coverage bug.

   

   potiuk committed Mar 15, 2024
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