sha,message,author_date,committer_date,raw_author,raw_committer,repo,author,committer
15537497136345ed67e9e8b089bcd4573df0b2ea,"Add optional dependencies (#4480)

* Add optional dependencies

See #2888

Criteria for inclusion:
- Mentioned in https://xarray.pydata.org/en/stable/installing.html#optional-dependencies
- Listed in PyPI
- Should not fail during build (due to build dependencies or external libraries)

* Update what's new doc

* Document installation with extras

* Apply suggestions on documenting opt dependencies

Co-authored-by: Mathias Hauser <mathause@users.noreply.github.com>

* Include netCDF4 to io extras

* Mention that extra dep are specified in setup.cfg

* Remove dummy dependency iris. Add extras docs.

  pip install -e '.[docs]'

installs all the extra packages required to generate
the documentation from source.

* Literal include extras_require snippet

* Modify extras as suggested by @keewis

* Rm pyke, add dask[complete] and other docs deps

* Apply suggestions from code review

Co-authored-by: Mathias Hauser <mathause@users.noreply.github.com>

* Update doc/installing.rst

* Update doc/whats-new.rst

Co-authored-by: Mathias Hauser <mathause@users.noreply.github.com>
Co-authored-by: Deepak Cherian <dcherian@users.noreply.github.com>",2020-10-15T13:54:54Z,2020-10-15T13:54:54Z,d0bdc4e97a01e6249da4719494f14659b766d78d,cd792325681cbad9f663f2879d8b69f1edbb678f,13221727,9155111,19864447