Cannot read ACCESS CMIP5 file

[znicholls]

Describe the bug

When crunching the ACCESS1-0 CMIP5 data, the following error is thrown

'real_datetime' object has no attribute 'nanosecond'

Failing Test

def read_access_data(access_data_path):
    cube = MarbleCMIP5Cube()
    cube.load_data_from_path(TEST_ACCESS_CMIP5_FILE)

Expected behavior

NetCDF-SCM should be able to read this file.

Screenshots

If applicable, add screenshots to help explain your problem.

System (please complete the following information):

• OS: macOS
• Python version [e.g. Python 3.5] and output of conda list --export and pip freeze as applicable

$ python --version
Python 3.6.6

$ conda list --export
# This file may be used to create an environment using:
# $ conda create --name <env> --file <this file>
# platform: osx-64
asn1crypto=0.24.0=py36_1003
beautifulsoup4=4.6.3=py36_1000
blas=1.0=mkl
bokeh=1.0.1=py36_1000
bzip2=1.0.6=1
ca-certificates=2018.10.15=ha4d7672_0
cartopy=0.16.0=py36h81b52dc_2
certifi=2018.10.15=py36_1000
cf_units=2.0.1=py36h7eb728f_2
cffi=1.11.5=py36h5e8e0c9_1
cftime=1.0.2.1=py36h7eb728f_0
chardet=3.0.4=py36_1003
click=7.0=py_0
cloudpickle=0.6.1=py_0
conda=4.5.11=py36_1000
conda-build=3.16.2=py36_0
conda-env=2.6.0=1
cryptography=2.3.1=py36hdffb7b8_0
cryptography-vectors=2.3.1=py36_1000
curl=7.62.0=h74213dd_0
cycler=0.10.0=py_1
cytoolz=0.9.0.1=py36h470a237_1
dask=0.20.1=py_0
dask-core=0.20.1=py_0
distributed=1.24.1=py36_1000
expat=2.2.5=hfc679d8_2
filelock=3.0.10=py_0
freetype=2.9.1=h6debe1e_4
geos=3.6.2=hfc679d8_3
glob2=0.6=py_0
hdf4=4.2.13=h951d187_2
hdf5=1.10.3=hc401514_2
heapdict=1.0.0=py36_1000
icu=58.2=hfc679d8_0
idna=2.7=py36_1002
intel-openmp=2019.0=118
iris=2.2.0=py36_1
jinja2=2.10=py_1
jpeg=9c=h470a237_1
kiwisolver=1.0.1=py36h2d50403_2
krb5=1.16.2=hbb41f41_0
libarchive=3.3.3=h823be47_0
libcurl=7.62.0=hbdb9355_0
libcxx=7.0.0=h2d50403_2
libedit=3.1.20170329=haf1bffa_1
libffi=3.2.1=hfc679d8_5
libgfortran=3.0.1=h93005f0_2
libiconv=1.15=h470a237_3
libnetcdf=4.6.1=h350cafa_11
libpng=1.6.35=ha92aebf_2
libssh2=1.8.0=h5b517e9_2
libtiff=4.0.9=he6b73bb_2
libxml2=2.9.8=h422b904_5
libxslt=1.1.32=h88dbc4e_2
llvm-meta=7.0.0=0
locket=0.2.0=py_2
lxml=4.2.5=py36hc9114bc_0
markupsafe=1.1.0=py36h470a237_0
matplotlib=3.0.1=1
matplotlib-base=3.0.1=py36h45c993b_1
mkl=2018.0.3=1
mkl_fft=1.0.6=py36_0
mkl_random=1.0.2=py36_0
msgpack-python=0.5.6=py36h2d50403_3
nc-time-axis=1.1.0=py_0
ncurses=6.1=hfc679d8_1
netcdf4=1.4.2=py36hac939d9_0
numpy=1.15.4=py36h6a91979_0
numpy-base=1.15.4=py36h8a80b8c_0
olefile=0.46=py_0
openssl=1.0.2p=h470a237_1
owslib=0.17.0=py_0
packaging=18.0=py_0
pandas=0.23.4=py36hf8a1672_0
partd=0.3.9=py_0
pillow=5.3.0=py36hc736899_0
pip=18.1=py36_1000
pkginfo=1.4.2=py_1
proj4=4.9.3=h470a237_8
psutil=5.4.8=py36h470a237_0
pycosat=0.6.3=py36h470a237_1
pycparser=2.19=py_0
pyepsg=0.3.2=py_1
pyke=1.1.1=py36_1000
pyopenssl=18.0.0=py36_1000
pyparsing=2.3.0=py_0
pyproj=1.9.5.1=py36h508ed2a_6
pyshp=2.0.0=py_0
pysocks=1.6.8=py36_1002
python=3.6.6=h5001a0f_0
python-dateutil=2.7.5=py_0
python-libarchive-c=2.8=py36_1004
pytz=2018.7=py_0
pyyaml=3.13=py36h470a237_1
readline=7.0=haf1bffa_1
requests=2.20.0=py36_1000
ruamel_yaml=0.15.71=py36h470a237_0
scipy=1.1.0=py36h28f7352_1
setuptools=40.5.0=py36_0
shapely=1.6.4=py36h164cb2d_1
six=1.11.0=py36_1001
sortedcontainers=2.0.5=py_0
sqlite=3.25.3=hb1c47c0_0
tblib=1.3.2=py_1
tk=8.6.8=ha92aebf_0
toolz=0.9.0=py_1
tornado=5.1.1=py36h470a237_0
tqdm=4.28.1=py_0
udunits2=2.2.27.6=h3a4f0e9_1
urllib3=1.23=py36_1001
wheel=0.32.2=py36_0
xz=5.2.4=h470a237_1
yaml=0.1.7=h470a237_1
zict=0.1.3=py_0
zlib=1.2.11=h470a237_3

$ pip freeze
alabaster==0.7.12
appdirs==1.4.3
appnope==0.1.0
asn1crypto==0.24.0
atomicwrites==1.2.1
attrs==18.2.0
Babel==2.6.0
backcall==0.1.0
beautifulsoup4==4.6.3
black==18.9b0
bleach==3.0.2
bokeh==1.0.1
Cartopy==0.16.0
certifi==2018.10.15
cf-units==2.0.1
cffi==1.11.5
cftime==1.0.2.1
chardet==3.0.4
Click==7.0
cloudpickle==0.6.1
codecov==2.0.15
conda==4.5.11
conda-build==3.16.2
coverage==4.5.1
cryptography==2.3.1
cryptography-vectors==2.3.1
cycler==0.10.0
cytoolz==0.9.0.1
dask==0.20.1
decorator==4.3.0
defusedxml==0.5.0
distributed==1.24.1
docutils==0.14
entrypoints==0.2.3
ExpectException==0.1.1
f90nml==1.0.2
filelock==3.0.10
flake8==3.6.0
glob2==0.6
heapdict==1.0.0
idna==2.7
imagesize==1.1.0
ipykernel==5.1.0
ipython==7.1.1
ipython-genutils==0.2.0
jedi==0.13.1
Jinja2==2.10
jsonschema==2.6.0
jupyter-client==5.2.3
jupyter-core==4.4.0
kiwisolver==1.0.1
libarchive-c==2.8
locket==0.2.0
lxml==4.2.5
MarkupSafe==1.1.0
matplotlib==3.0.1
mccabe==0.6.1
mistune==0.8.4
mkl-fft==1.0.6
mkl-random==1.0.2
more-itertools==4.3.0
msgpack==0.5.6
nbconvert==5.4.0
nbformat==4.4.0
nbresuse==0.3.0
nbval==0.9.1
nc-time-axis==1.1.0
-e git+git@github.com:znicholls/netcdf-scm.git@7968219efcec5b4cff0d7473166b07b758ae58ae#egg=netcdf_scm
netCDF4==1.4.2
notebook==5.7.0
numpy==1.15.4
olefile==0.46
OWSLib==0.17.0
packaging==18.0
pandas==0.23.4
pandas-datapackage-reader==0.11.1
pandocfilters==1.4.2
parso==0.3.1
partd==0.3.9
pexpect==4.6.0
pickleshare==0.7.5
Pillow==5.3.0
pkginfo==1.4.2
pluggy==0.8.0
progressbar2==3.38.0
prometheus-client==0.4.2
prompt-toolkit==2.0.7
psutil==5.4.8
ptyprocess==0.6.0
py==1.7.0
pyam-iamc==0.1.1
pycodestyle==2.4.0
pycosat==0.6.3
pycparser==2.19
pyepsg==0.3.2
pyflakes==2.0.0
Pygments==2.2.0
pyke==1.1.1
pymagicc==2.0.0a0
pyOpenSSL==18.0.0
pyparsing==2.3.0
pyproj==1.9.5.1
pyshp==2.0.0
PySocks==1.6.8
pytest==3.10.0
pytest-cov==2.6.0
python-dateutil==2.7.5
python-utils==2.3.0
pytz==2018.7
PyYAML==3.13
pyzmq==17.1.2
readme-renderer==24.0
requests==2.20.0
requests-toolbelt==0.8.0
ruamel-yaml==0.15.71
scipy==1.1.0
scitools-iris==2.2.0
seaborn==0.9.0
Send2Trash==1.5.0
Shapely==1.6.4.post1
six==1.11.0
snowballstemmer==1.2.1
sortedcontainers==2.0.5
Sphinx==1.8.1
sphinx-rtd-theme==0.4.2
sphinxcontrib-websupport==1.1.0
tblib==1.3.2
terminado==0.8.1
testpath==0.4.2
toml==0.10.0
toolz==0.9.0
tornado==5.1.1
tqdm==4.28.1
traitlets==4.3.2
twine==1.12.1
urllib3==1.23
versioneer==0.18
wcwidth==0.1.7
webencodings==0.5.1
xlrd==1.1.0
XlsxWriter==1.1.2
zict==0.1.3

Additional context

Add any other context about the problem here.

[znicholls]

Looks like this is related to SciTools/iris#3216

[znicholls]

Fixed in #29