reticulate 1.32.0

• reticulate now supports casting R data.frames to Pandas data.frames using nullable
  data types, allowing users to preserve NA's from R atomic vectors. This feature is
  opt-in and can be enabled by setting the R option reticulate.pandas_use_nullable_dtypes
  to TRUE. (#1439)

• reticulate now exports a chooseOpsMethod() method, allowing for Ops dispatch
  to more specialized Ops methods defined for Python objects.

• py_discover_config() will now warn instead of error upon encountering a
  broken Python installation. (#1441, #1459)

• Fixed issue where Python would raise exception "OSError: [WinError 6] The handle is invalid"
  when opening a subprocess while running in Rstudio on Windows. (#1448, #518)

• Fixed issue where the multiprocessing Python module would crash or hang when spawning a
  Process() on Windows. (#1430, #1346, fixed in #1461)

• Fixed issue where virtualenv_create() would fail to discover a 'virtualenv' module
  in the system Python installation on Ubuntu. Reticulate will no longer discover
  and attempt to use the venv module stub present on Ubuntu systems
  where the python3-venv apt package has not been installed.
  (mlverse/pysparklyr#11, #1437, #1455)

• Fixed issue where the user was prompted to create an 'r-reticulate' venv
  in the RStudio IDE before reticulate was requested to initialize Python. (#1450, #1456)

• Improved error message when reticulate attempts to initialize a virtual environment
  after the Python installation it was created from is no longer available. (#1149, #1457)

• Improved error message on Fedora when attempting to create a virtual environment
  from the system python before running dnf install python3-pip.

• Fixed issue where install_python() on macOS in the RStudio IDE would fail to discover
  and use brew for Python build dependencies.

• Fixed error with virtualenv_create(python = "/usr/bin/python") on centos7. (#1467)