Fix missing dependecy definition of 'packaging' (#6207)

* 🩹 Added packaging to install_requires

* add packaging dep to ci, install instructions, and whatsnew page

* lint

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* uninstall packaging before installing upstream

* update requirements.txt

* update whats new and rerun linter

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Co-authored-by: Illviljan <[email protected]>
Co-authored-by: Joseph Hamman <[email protected]>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: 4 people

.binder/environment.yml

@@ -23,6 +23,7 @@ dependencies:
   - netcdf4
   - numba
   - numpy
+  - packaging
   - pandas
   - pint
   - pip

ci/install-upstream-wheels.sh

@@ -11,6 +11,7 @@ conda uninstall -y --force \
     zarr \
     cftime \
     rasterio \
+    packaging \
     pint \
     sparse \
     h5netcdf \
@@ -40,6 +41,7 @@ python -m pip install \
     git+https://github.com/zarr-developers/zarr \
     git+https://github.com/Unidata/cftime \
     git+https://github.com/mapbox/rasterio \
+    git+https://github.com/pypa/packaging \
     git+https://github.com/hgrecco/pint \
     git+https://github.com/pydata/sparse \
     git+https://github.com/intake/filesystem_spec \

ci/requirements/doc.yml

@@ -19,6 +19,7 @@ dependencies:
   - netcdf4>=1.5
   - numba
   - numpy>=1.17
+  - packaging>=20.0
   - pandas>=1.0
   - pooch
   - pip

ci/requirements/environment-windows.yml

@@ -22,6 +22,7 @@ dependencies:
   - netcdf4
   - numba
   - numpy
+  - packaging
   - pandas
   - pint
   - pip

ci/requirements/environment.yml

@@ -25,6 +25,7 @@ dependencies:
   - numba
   - numexpr
   - numpy
+  - packaging
   - pandas
   - pint
   - pip

ci/requirements/py38-bare-minimum.yml

@@ -11,4 +11,5 @@ dependencies:
   - pytest-env
   - pytest-xdist
   - numpy=1.18
+  - packaging=20.0
   - pandas=1.1

ci/requirements/py38-min-all-deps.yml

@@ -33,6 +33,7 @@ dependencies:
   - netcdf4=1.5.3
   - numba=0.51
   - numpy=1.18
+  - packaging=20.0
   - pandas=1.1
   - pint=0.16
   - pip

ci/requirements/py39-all-but-dask.yml

@@ -23,6 +23,7 @@ dependencies:
   - netcdf4
   - numba
   - numpy
+  - packaging
   - pandas
   - pint
   - pip

doc/getting-started-guide/installing.rst

@@ -8,6 +8,7 @@ Required dependencies
 
 - Python (3.8 or later)
 - `numpy <https://www.numpy.org/>`__ (1.18 or later)
+- `packaging <https://packaging.pypa.io/en/latest/#>`__ (20.0 or later)
 - `pandas <https://pandas.pydata.org/>`__ (1.1 or later)
 
 .. _optional-dependencies:

doc/whats-new.rst

@@ -33,7 +33,8 @@ Deprecations
 
 Bug fixes
 ~~~~~~~~~
-
+- Add `packaging` as a dependency to Xarray (:issue:`6216`, :pull:`6207`).
+  By `Sebastian Weigand <https://github.com/s-weigand>`_ and `Joe Hamman <https://github.com/jhamman>`_.
 
 Documentation
 ~~~~~~~~~~~~~

requirements.txt

@@ -3,4 +3,5 @@
 # https://help.github.com/en/github/visualizing-repository-data-with-graphs/listing-the-packages-that-a-repository-depends-on
 
 numpy >= 1.18
+packaging >= 20.0
 pandas >= 1.1

setup.cfg

@@ -77,6 +77,7 @@ python_requires = >=3.8
 install_requires =
     numpy >= 1.18
     pandas >= 1.1
+    packaging >= 20.0
 
 [options.extras_require]
 io =