Shapely deprecation warning from ShapelyFeature class

[chowington]

Description

The ShapelyFeature class causes a deprecation warning from Shapely to appear.

Code to reproduce

Instantiate a ShapelyFeature.

Traceback

/home/chowingt/miniconda3/envs/GOS-env/lib/python3.9/site-packages/cartopy/feature/__init__.py:217: ShapelyDeprecationWarning: Iteration over multi-part geometries is deprecated and will be removed in Shapely 2.0. Use the `geoms` property to access the constituent parts of a multi-part geometry.
  self._geoms = tuple(geometries)
/home/chowingt/miniconda3/envs/GOS-env/lib/python3.9/site-packages/cartopy/feature/__init__.py:217: ShapelyDeprecationWarning: __len__ for multi-part geometries is deprecated and will be removed in Shapely 2.0. Check the length of the `geoms` property instead to get the  number of parts of a multi-part geometry.
  self._geoms = tuple(geometries)

Full environment definition

Operating system

Ubuntu 20.04.3

Cartopy version

0.20.2

conda list

# Name                    Version                   Build  Channel
_libgcc_mutex             0.1                 conda_forge    conda-forge
_openmp_mutex             4.5                       1_gnu    conda-forge
alabaster                 0.7.12                     py_0    conda-forge
argon2-cffi               20.1.0           py39h27cfd23_1
async_generator           1.10               pyhd3eb1b0_0
attrs                     21.2.0             pyhd3eb1b0_0
babel                     2.9.1              pyh44b312d_0    conda-forge
backcall                  0.2.0              pyhd3eb1b0_0
blas                      1.0                         mkl
bleach                    4.1.0              pyhd3eb1b0_0
bottleneck                1.3.2            py39hdd57654_1
brotli                    1.0.9                he6710b0_2
brotlipy                  0.7.0           py39h3811e60_1003    conda-forge
bzip2                     1.0.8                h7f98852_4    conda-forge
c-ares                    1.18.1               h7f98852_0    conda-forge
ca-certificates           2021.10.26           h06a4308_2
cartopy                   0.20.2           py39h8394fad_0    conda-forge
certifi                   2021.10.8        py39h06a4308_2
cffi                      1.14.6           py39h400218f_0
charset-normalizer        2.0.10             pyhd8ed1ab_0    conda-forge
colorama                  0.4.4              pyh9f0ad1d_0    conda-forge
cryptography              36.0.1           py39h95dcef6_0    conda-forge
cycler                    0.11.0             pyhd3eb1b0_0
dataclasses               0.8                pyhc8e2a94_3    conda-forge
dbus                      1.13.18              hb2f20db_0
debugpy                   1.5.1            py39h295c915_0
decorator                 5.1.0              pyhd3eb1b0_0
defusedxml                0.7.1              pyhd3eb1b0_0
docutils                  0.16             py39hf3d152e_3    conda-forge
entrypoints               0.3              py39h06a4308_0
et_xmlfile                1.1.0            py39h06a4308_0
expat                     2.4.1                h2531618_2
fontconfig                2.13.1               h6c09931_0
fonttools                 4.25.0             pyhd3eb1b0_0
freetype                  2.11.0               h70c0345_0
geos                      3.10.1               h9c3ff4c_1    conda-forge
giflib                    5.2.1                h7b6447c_0
glib                      2.69.1               h5202010_0
gst-plugins-base          1.14.0               h8213a91_2
gstreamer                 1.14.0               h28cd5cc_2
haversine                 2.5.1              pyhd8ed1ab_0    conda-forge
icu                       58.2                 he6710b0_3
idna                      3.1                pyhd3deb0d_0    conda-forge
imagesize                 1.3.0              pyhd8ed1ab_0    conda-forge
importlib-metadata        4.8.2            py39h06a4308_0
importlib_metadata        4.8.2                hd3eb1b0_0
intel-openmp              2021.4.0          h06a4308_3561
ipykernel                 6.4.1            py39h06a4308_1
ipython                   7.29.0           py39hb070fc8_0
ipython_genutils          0.2.0              pyhd3eb1b0_1
ipywidgets                7.6.5              pyhd3eb1b0_1
jbig                      2.1               h7f98852_2003    conda-forge
jedi                      0.18.0           py39h06a4308_1
jinja2                    3.0.3              pyhd8ed1ab_0    conda-forge
jpeg                      9d                   h7f8727e_0
jsonschema                3.2.0              pyhd3eb1b0_2
jupyter                   1.0.0            py39h06a4308_7
jupyter_client            7.1.0              pyhd3eb1b0_0
jupyter_console           6.4.0              pyhd3eb1b0_0
jupyter_core              4.9.1            py39h06a4308_0
jupyterlab_pygments       0.1.2                      py_0
jupyterlab_widgets        1.0.0              pyhd3eb1b0_1
kiwisolver                1.3.1            py39h2531618_0
krb5                      1.19.2               hcc1bbae_3    conda-forge
latexcodec                2.0.1              pyh9f0ad1d_0    conda-forge
lcms2                     2.12                 h3be6417_0
ld_impl_linux-64          2.36.1               hea4e1c9_2    conda-forge
lerc                      3.0                  h9c3ff4c_0    conda-forge
libcurl                   7.81.0               h2574ce0_0    conda-forge
libdeflate                1.8                  h7f98852_0    conda-forge
libedit                   3.1.20191231         he28a2e2_2    conda-forge
libev                     4.33                 h516909a_1    conda-forge
libffi                    3.3                  he6710b0_2
libgcc-ng                 11.2.0              h1d223b6_11    conda-forge
libgfortran-ng            7.5.0               ha8ba4b0_17
libgfortran4              7.5.0               ha8ba4b0_17
libgomp                   11.2.0              h1d223b6_11    conda-forge
libnghttp2                1.43.0               h812cca2_1    conda-forge
libnsl                    2.0.0                h7f98852_0    conda-forge
libpng                    1.6.37               hbc83047_0
libsodium                 1.0.18               h7b6447c_0
libssh2                   1.10.0               ha56f1ee_2    conda-forge
libstdcxx-ng              11.2.0              he4da1e4_11    conda-forge
libtiff                   4.3.0                h6f004c6_2    conda-forge
libuuid                   1.0.3                h7f8727e_2
libwebp                   1.2.0                h89dd481_0
libwebp-base              1.2.0                h27cfd23_0
libxcb                    1.14                 h7b6447c_0
libxml2                   2.9.12               h03d6c58_0
libzlib                   1.2.11            h36c2ea0_1013    conda-forge
lz4-c                     1.9.3                h295c915_1
markupsafe                2.0.1            py39h3811e60_1    conda-forge
matplotlib-base           3.5.0            py39h3ed280b_0
matplotlib-inline         0.1.2              pyhd3eb1b0_2
mistune                   0.8.4           py39h27cfd23_1000
mkl                       2021.4.0           h06a4308_640
mkl-service               2.4.0            py39h7f8727e_0
mkl_fft                   1.3.1            py39hd3c417c_0
mkl_random                1.2.2            py39h51133e4_0
munkres                   1.1.4                      py_0
nbclient                  0.5.3              pyhd3eb1b0_0
nbconvert                 6.3.0            py39h06a4308_0
nbformat                  5.1.3              pyhd3eb1b0_0
ncurses                   6.2                  h58526e2_4    conda-forge
nest-asyncio              1.5.1              pyhd3eb1b0_0
notebook                  6.4.6            py39h06a4308_0
numexpr                   2.8.1            py39h6abb31d_0
numpy                     1.21.2           py39h20f2e39_0
numpy-base                1.21.2           py39h79a1101_0
olefile                   0.46               pyhd3eb1b0_0
openpyxl                  3.0.9              pyhd3eb1b0_0
openssl                   1.1.1m               h7f8727e_0
packaging                 21.3               pyhd8ed1ab_0    conda-forge
pandas                    1.3.5            py39h8c16a72_0
pandocfilters             1.4.3            py39h06a4308_1
parso                     0.8.3              pyhd3eb1b0_0
pcre                      8.45                 h295c915_0
pexpect                   4.8.0              pyhd3eb1b0_3
pickleshare               0.7.5           pyhd3eb1b0_1003
pillow                    8.4.0            py39h5aabda8_0
pip                       21.3.1             pyhd8ed1ab_0    conda-forge
proj                      8.2.0                h277dcde_0    conda-forge
prometheus_client         0.12.0             pyhd3eb1b0_0
prompt-toolkit            3.0.20             pyhd3eb1b0_0
prompt_toolkit            3.0.20               hd3eb1b0_0
ptyprocess                0.7.0              pyhd3eb1b0_2
pybtex                    0.24.0             pyhd8ed1ab_2    conda-forge
pybtex-docutils           1.0.1            py39hf3d152e_1    conda-forge
pycparser                 2.21               pyhd8ed1ab_0    conda-forge
pygments                  2.11.2             pyhd8ed1ab_0    conda-forge
pyopenssl                 21.0.0             pyhd8ed1ab_0    conda-forge
pyparsing                 3.0.6              pyhd8ed1ab_0    conda-forge
pyproj                    3.3.0            py39h1b810de_0    conda-forge
pyqt                      5.9.2            py39h2531618_6
pyrsistent                0.18.0           py39heee7806_0
pyshp                     2.1.3              pyhd3eb1b0_0
pysocks                   1.7.1            py39hf3d152e_4    conda-forge
python                    3.9.7                h12debd9_1
python-dateutil           2.8.2              pyhd3eb1b0_0
python_abi                3.9                      2_cp39    conda-forge
pytz                      2021.3             pyhd8ed1ab_0    conda-forge
pyyaml                    6.0              py39h3811e60_3    conda-forge
pyzmq                     22.3.0           py39h295c915_2
qt                        5.9.7                h5867ecd_1
qtconsole                 5.1.1              pyhd3eb1b0_0
qtpy                      1.10.0             pyhd3eb1b0_0
readline                  8.1                  h46c0cb4_0    conda-forge
requests                  2.27.1             pyhd8ed1ab_0    conda-forge
scipy                     1.7.3            py39hc147768_0
send2trash                1.8.0              pyhd3eb1b0_1
setuptools                60.5.0           py39hf3d152e_0    conda-forge
shapely                   1.8.0            py39h98e2149_4    conda-forge
sip                       4.19.13          py39h2531618_0
six                       1.16.0             pyh6c4a22f_0    conda-forge
snowballstemmer           2.2.0              pyhd8ed1ab_0    conda-forge
sphinx                    4.3.2              pyh6c4a22f_0    conda-forge
sphinxcontrib-applehelp   1.0.2                      py_0    conda-forge
sphinxcontrib-bibtex      2.4.1              pyhd8ed1ab_0    conda-forge
sphinxcontrib-devhelp     1.0.2                      py_0    conda-forge
sphinxcontrib-htmlhelp    2.0.0              pyhd8ed1ab_0    conda-forge
sphinxcontrib-jsmath      1.0.1                      py_0    conda-forge
sphinxcontrib-qthelp      1.0.3                      py_0    conda-forge
sphinxcontrib-serializinghtml 1.1.5              pyhd8ed1ab_1    conda-forge
sqlite                    3.37.0               h9cd32fc_0    conda-forge
terminado                 0.9.4            py39h06a4308_0
testpath                  0.5.0              pyhd3eb1b0_0
tk                        8.6.11               h27826a3_1    conda-forge
tornado                   6.1              py39h27cfd23_0
traitlets                 5.1.1              pyhd3eb1b0_0
tzdata                    2021e                he74cb21_0    conda-forge
urllib3                   1.26.8             pyhd8ed1ab_1    conda-forge
wcwidth                   0.2.5              pyhd3eb1b0_0
webencodings              0.5.1            py39h06a4308_1
wheel                     0.37.1             pyhd8ed1ab_0    conda-forge
widgetsnbextension        3.5.1            py39h06a4308_0
xz                        5.2.5                h516909a_1    conda-forge
yaml                      0.2.5                h7f98852_2    conda-forge
zeromq                    4.3.4                h2531618_0
zipp                      3.7.0              pyhd3eb1b0_0
zlib                      1.2.11            h36c2ea0_1013    conda-forge
zstd                      1.5.1                ha95c52a_0    conda-forge

[greglucas]

I believe this was fixed by #1999 being able to pass a single geometry. Feel free to reopen if that is not the case.