conda env create --file environment.yaml Fails with strict channel_priority
Noticed this when rebuilding dev environment from scratch, but our current conda specification results in an UnsatisfiableError

<details>

```sh
$ conda env create -f environment.yml
Collecting package metadata (repodata.json): done
Solving environment: \
Found conflicts! Looking for incompatible packages.
This can take several minutes.  Press CTRL-C to abort.
failed

UnsatisfiableError: The following specifications were found to be incompatible with each other:
Package requests conflicts for:
sphinx -> requests[version='>2.0.0|>=2.0.0|>=2.5.0']
moto -> requests[version='>=2.0|>=2.5']
Package pandas conflicts for:
pyreadstat -> pandas
seaborn -> pandas[version='>=0.14.0']
xarray -> pandas[version='>=0.18.0|>=0.19.2']
statsmodels -> pandas[version='>=0.14']
fastparquet[version='>=0.2.1'] -> pandas[version='>=0.19']
Package python conflicts for:
xlsxwriter -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
flake8-comprehensions -> python[version='2.7.*|3.4.*|3.5.*|3.6.*|>=3.4|>=3.5']
pycodestyle -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
numexpr[version='>=2.6.8'] -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
nbconvert[version='>=5.4.1'] -> python[version='>=2.7,<2.8.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
pyyaml -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
numpydoc[version='>=0.9.0'] -> python
asv -> python[version='2.7.*|3.4.*|3.5.*|3.6.*|>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
boto3 -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
cython[version='>=0.29.13'] -> python[version='>=2.7,<2.8.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0|>=3.8,<3.9.0a0']
html5lib -> python[version='2.7.*|3.5.*|3.6.*|>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
requests -> python[version='2.7.*|3.4.*|3.5.*|3.6.*|>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
scipy[version='>=1.1'] -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
ipywidgets -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
botocore[version='>=1.11'] -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
xarray -> python[version='>=2.7,<2.8.0a0|>=3.5|>=3.5,<3.6.0a0|>=3.5.3|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
matplotlib[version='>=2.2.2'] -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
pytz -> python[version='2.7.*|3.4.*|3.5.*|3.6.*|>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
ipython[version='>=5.6.0'] -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
pytest[version='>=4.0.2'] -> python[version='>=2.7,<2.8.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0|>=3.8,<3.9.0a0']
pytest-mock -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
dask-core -> python[version='>=2.7,<2.8.0a0|>=3.5|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
notebook[version='>=5.7.5'] -> python[version='>=2.7,<2.8.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
cpplint -> python
lxml -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
s3fs -> python[version='>=2.7,<2.8.0a0|>=3.5|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
fsspec[version='>=0.5.1'] -> python[version='>=3.5']
mypy -> python[version='>=3.4|>=3.5|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
seaborn -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
jinja2 -> python[version='2.7.*|3.4.*|3.5.*|3.6.*|>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
ipykernel -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
pytables[version='>=3.4.2'] -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
xlwt -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
isort -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
pyreadstat -> python[version='>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
sphinx -> python[version='2.7.*|3.4.*|3.5.*|3.6.*|>=2.7,<2.8.0a0|>=3.5|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
fastparquet[version='>=0.2.1'] -> python[version='>=2.7,<2.8.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
toolz[version='>=0.7.3'] -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
numpy[version='>=1.15'] -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
flake8-rst[version='>=0.6.0,<=0.7.0'] -> python
nbformat -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
pytest-cov -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
pytest-xdist -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
markdown -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
openpyxl -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
partd[version='>=0.3.10'] -> python[version='>=2.7,<2.8.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
nbsphinx -> python[version='2.7.*|3.4.*|3.5.*|3.6.*|>=3.5']
feedparser -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0|>=3.8,<3.9.0a0']
odfpy -> python[version='2.7.*|3.5.*|3.6.*']
sqlalchemy -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
pip -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0|>=3.8,<3.9.0a0']
gitpython -> python[version='>=2.7,<2.8.0a0|>=3|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
hypothesis[version='>=3.82'] -> python[version='>=2.7,<2.8.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
bottleneck[version='>=1.2.1'] -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
flake8 -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
pyqt[version='>=5.9.2'] -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
black -> python[version='>=3.6']
xlrd -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
statsmodels -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
python-dateutil[version='>=2.6.1'] -> python[version='2.7.*|3.5.*|3.6.*|>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
beautifulsoup4[version='>=4.6.0'] -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0|>=3.8,<3.9.0a0']
moto -> python
cloudpickle[version='>=0.2.1'] -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
python-snappy -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
Package docutils conflicts for:
sphinx -> docutils[version='>=0.11|>=0.12']
botocore[version='>=1.11'] -> docutils[version='>=0.10,<0.16|>=0.10|>=0.10,<0.15']
nbsphinx -> docutils
Package atomicwrites conflicts for:
pytest[version='>=4.0.2'] -> atomicwrites[version='>=1.0']
Package boto conflicts for:
moto -> boto[version='>=2.36.0']
Package functools32 conflicts for:
flake8 -> functools32
matplotlib[version='>=2.2.2'] -> functools32
Package packaging conflicts for:
pytest[version='>=4.0.2'] -> packaging
sphinx -> packaging
Package six conflicts for:
fastparquet[version='>=0.2.1'] -> six
html5lib -> six[version='>=1.9']
pytables[version='>=3.4.2'] -> six
pytest-xdist -> six
python-dateutil[version='>=2.6.1'] -> six[version='>=1.5']
pytest[version='>=4.0.2'] -> six[version='>=1.10.0']
asv -> six
moto -> six
sphinx -> six[version='>=1.5']
Package prometheus_client conflicts for:
notebook[version='>=5.7.5'] -> prometheus_client
Package enum34 conflicts for:
flake8 -> enum34
hypothesis[version='>=3.82'] -> enum34
Package pyparsing conflicts for:
matplotlib[version='>=2.2.2'] -> pyparsing
Package * conflicts for:
scipy[version='>=1.1'] -> *[track_features=nomkl]
Package numpy conflicts for:
pytables[version='>=3.4.2'] -> numpy[version='>=1.11.3,<2.0a0|>=1.9.3,<2.0a0']
xarray -> numpy[version='>=1.11|>=1.12']
matplotlib[version='>=2.2.2'] -> numpy
seaborn -> numpy[version='>=1.9.3']
fastparquet[version='>=0.2.1'] -> numpy[version='>=1.11.3,<2.0a0']
statsmodels -> numpy[version='>=1.11.3,<2.0a0|>=1.9.3,<2.0a0']
scipy[version='>=1.1'] -> numpy[version='>=1.11.3,<2.0a0|>=1.15.1,<2.0a0|>=1.9.3,<2.0a0']
bottleneck[version='>=1.2.1'] -> numpy[version='>=1.11.3,<2.0a0|>=1.9.3,<2.0a0']
numexpr[version='>=2.6.8'] -> numpy[version='>=1.11.3,<2.0a0|>=1.15.4,<2.0a0|>=1.16.4,<2.0a0']
Package alabaster conflicts for:
sphinx -> alabaster[version='>=0.7,<0.8']
Package nbformat conflicts for:
nbsphinx -> nbformat
ipywidgets -> nbformat[version='>=4.2.0']
nbconvert[version='>=5.4.1'] -> nbformat[version='>=4.4']
notebook[version='>=5.7.5'] -> nbformat
Package mock conflicts for:
pytables[version='>=3.4.2'] -> mock
pytest-mock -> mock
moto -> mock
Package pygments conflicts for:
sphinx -> pygments[version='>2.0|>=2.0']
ipython[version='>=5.6.0'] -> pygments
nbconvert[version='>=5.4.1'] -> pygments
Package sip conflicts for:
pyqt[version='>=5.9.2'] -> sip[version='>=4.19.4,<=4.19.8']
Package libpng conflicts for:
matplotlib[version='>=2.2.2'] -> libpng[version='>=1.6.34,<1.7.0a0|>=1.6.35,<1.7.0a0|>=1.6.36,<1.7.0a0|>=1.6.37,<1.7.0a0']
Package kiwisolver conflicts for:
matplotlib[version='>=2.2.2'] -> kiwisolver
Package pandocfilters conflicts for:
nbconvert[version='>=5.4.1'] -> pandocfilters[version='>=1.4.1']
Package pip conflicts for:
python=3 -> pip
Package responses conflicts for:
moto -> responses[version='>=0.9.0']
Package pytest-faulthanlder conflicts for:
pytest[version='>=4.0.2'] -> pytest-faulthanlder[version='>=2']
Package pyflakes conflicts for:
flake8 -> pyflakes[version='>=1.5.0,<1.6.0|>=1.5.0,<1.7.0|>=2.0.0,<2.1.0|>=2.1.0,<2.2.0']
Package cycler conflicts for:
matplotlib[version='>=2.2.2'] -> cycler[version='>=0.10']
Package setuptools conflicts for:
cython[version='>=0.29.13'] -> setuptools
pytest-cov -> setuptools
markdown -> setuptools
asv -> setuptools
jinja2 -> setuptools
flake8 -> setuptools[version='>=30.0.0']
isort -> setuptools
matplotlib[version='>=2.2.2'] -> setuptools
sphinx -> setuptools
pytest[version='>=4.0.2'] -> setuptools[version='>=40.0']
pip -> setuptools
Package bleach conflicts for:
nbconvert[version='>=5.4.1'] -> bleach
Package soupsieve conflicts for:
beautifulsoup4[version='>=4.6.0'] -> soupsieve[version='>=1.2']
Package zlib conflicts for:
pyreadstat -> zlib[version='>=1.2.11,<1.3.0a0']
blosc -> zlib[version='>=1.2.11,<1.3.0a0']
matplotlib[version='>=2.2.2'] -> zlib[version='>=1.2.11,<1.3.0a0']
python=3 -> zlib[version='>=1.2.11,<1.3.0a0']
pytables[version='>=3.4.2'] -> zlib[version='>=1.2.11,<1.3.0a0']
Package flask conflicts for:
moto -> flask
Package bzip2 conflicts for:
pytables[version='>=3.4.2'] -> bzip2[version='>=1.0.6,<2.0a0']
Package jupyter_core conflicts for:
nbconvert[version='>=5.4.1'] -> jupyter_core
notebook[version='>=5.7.5'] -> jupyter_core[version='>=4.4.0']
nbformat -> jupyter_core
Package openssl conflicts for:
python=3 -> openssl[version='1.0.*|1.0.*,>=1.0.2l,<1.0.3a|>=1.0.2m,<1.0.3a|>=1.0.2n,<1.0.3a|>=1.0.2o,<1.0.3a|>=1.0.2p,<1.0.3a|>=1.1.1a,<1.1.2a|>=1.1.1b,<1.1.2a|>=1.1.1c,<1.1.2a|>=1.1.1d,<1.1.2a']
Package sphinxcontrib-htmlhelp conflicts for:
sphinx -> sphinxcontrib-htmlhelp
Package jsonschema conflicts for:
nbformat -> jsonschema[version='>=2.4,!=2.5.0']
Package backports.shutil_get_terminal_size conflicts for:
ipython[version='>=5.6.0'] -> backports.shutil_get_terminal_size
Package pathlib2 conflicts for:
ipython[version='>=5.6.0'] -> pathlib2
pytest[version='>=4.0.2'] -> pathlib2[version='>=2.2.0']
Package mkl_fft conflicts for:
numpy[version='>=1.15'] -> mkl_fft[version='>=1.0.4|>=1.0.6,<2.0a0']
Package tornado conflicts for:
ipykernel -> tornado[version='>=4.0|>=4.2']
notebook[version='>=5.7.5'] -> tornado[version='>=4.1,<7|>=5.0,<7']
matplotlib[version='>=2.2.2'] -> tornado
Package mypy_extensions conflicts for:
mypy -> mypy_extensions[version='>=0.4.0,<0.5.0']
Package libopenblas conflicts for:
numexpr[version='>=2.6.8'] -> libopenblas[version='>=0.3.2,<0.3.3.0a0|>=0.3.3,<1.0a0']
numpy[version='>=1.15'] -> libopenblas[version='>=0.3.2,<0.3.3.0a0|>=0.3.3,<1.0a0']
scipy[version='>=1.1'] -> libopenblas[version='>=0.2.20,<0.2.21.0a0|>=0.3.2,<0.3.3.0a0|>=0.3.3,<1.0a0']
Package scipy conflicts for:
statsmodels -> scipy[version='>=0.14']
seaborn -> scipy[version='>=0.15.2']
Package typing conflicts for:
mypy -> typing[version='>=3.5.3']
flake8 -> typing
sphinx -> typing
Package pytest conflicts for:
pytest-cov -> pytest[version='>=3.6']
pytest-xdist -> pytest[version='>=3.0.0|>=4.4.0']
fastparquet[version='>=0.2.1'] -> pytest
pytest-mock -> pytest[version='>=2.7']
Package execnet conflicts for:
pytest-xdist -> execnet[version='>=1.1']
Package pandoc conflicts for:
nbconvert[version='>=5.4.1'] -> pandoc[version='>=1.12.1|>=1.12.1,<2.0.0']
Package psutil conflicts for:
mypy -> psutil[version='>=4.0|>=5.4.0,<5.5.0']
Package sphinxcontrib-websupport conflicts for:
sphinx -> sphinxcontrib-websupport
Package wheel conflicts for:
pip -> wheel
Package tk conflicts for:
python=3 -> tk[version='8.6.*|>=8.6.7,<8.7.0a0|>=8.6.8,<8.7.0a0']
Package ipython conflicts for:
ipykernel -> ipython[version='>=4.0|>=4.0.0|>=5.0']
ipywidgets -> ipython[version='>=4.0.0']
Package simplegeneric conflicts for:
ipython[version='>=5.6.0'] -> simplegeneric[version='>0.8']
Package funcsigs conflicts for:
pytest[version='>=4.0.2'] -> funcsigs[version='>=1.0']
Package locket conflicts for:
partd[version='>=0.3.10'] -> locket
Package ipykernel conflicts for:
ipywidgets -> ipykernel[version='>=4.5.1']
notebook[version='>=5.7.5'] -> ipykernel
Package python-dateutil conflicts for:
moto -> python-dateutil
matplotlib[version='>=2.2.2'] -> python-dateutil
botocore[version='>=1.11'] -> python-dateutil[version='>=2.1,<3.0.0']
Package xz conflicts for:
python=3 -> xz[version='>=5.2.3,<6.0a0|>=5.2.4,<6.0a0']
Package sphinxcontrib-qthelp conflicts for:
sphinx -> sphinxcontrib-qthelp
Package markupsafe conflicts for:
jinja2 -> markupsafe[version='>=0.23']
Package flake8 conflicts for:
flake8-rst[version='>=0.6.0,<=0.7.0'] -> flake8[version='>=3.5.0']
flake8-comprehensions -> flake8[version='!=3.2.0|>=3.0,!=3.2.0,<4.0']
Package statsmodels conflicts for:
seaborn -> statsmodels[version='>=0.5.0']
Package ipaddress conflicts for:
notebook[version='>=5.7.5'] -> ipaddress
Package patsy conflicts for:
seaborn -> patsy
statsmodels -> patsy[version='>=0.4.0']
Package lz4-c conflicts for:
blosc -> lz4-c[version='>=1.8.1.2,<1.9.0a0']
Package botocore conflicts for:
boto3 -> botocore[version='>=1.10.24,<1.11.0|>=1.10.32,<1.11.0|>=1.10.4,<1.11.0|>=1.10.45,<1.11.0|>=1.10.62,<1.11.0|>=1.11.2,<1.12.0|>=1.12.111,<1.13.0|>=1.12.13,<1.13.0|>=1.12.134,<1.13.0|>=1.12.162,<1.13.0|>=1.12.199,<1.13.0|>=1.12.21,<1.13.0|>=1.12.234,<1.13.0|>=1.12.35,<1.13.0|>=1.12.66,<1.13.0|>=1.12.7,<1.13.0|>=1.12.82,<1.13.0|>=1.7.0,<1.8.0|>=1.8.0,<1.9.0|>=1.8.46,<1.9.0|>=1.9.18,<1.10.0']
moto -> botocore[version='<1.11|>=1.12.13']
Package jinja2 conflicts for:
nbconvert[version='>=5.4.1'] -> jinja2
sphinx -> jinja2[version='>=2.3']
nbsphinx -> jinja2
moto -> jinja2[version='>=2.7.3|>=2.8']
notebook[version='>=5.7.5'] -> jinja2
Package testpath conflicts for:
nbconvert[version='>=5.4.1'] -> testpath
Package mkl conflicts for:
numexpr[version='>=2.6.8'] -> mkl[version='>=2018.0.3,<2019.0a0|>=2019.1,<2020.0a0|>=2019.4,<2020.0a0']
scipy[version='>=1.1'] -> mkl[version='>=2018.0.2,<2019.0a0|>=2018.0.3,<2019.0a0|>=2019.1,<2020.0a0|>=2019.4,<2020.0a0']
numpy[version='>=1.15'] -> mkl[version='>=2018.0.3,<2019.0a0|>=2019.1,<2020.0a0|>=2019.3,<2020.0a0|>=2019.4,<2020.0a0']
Package readline conflicts for:
python=3 -> readline[version='7.*|>=7.0,<8.0a0']
Package s3transfer conflicts for:
boto3 -> s3transfer[version='>=0.1.10,<0.2.0|>=0.2.0,<0.3.0']
Package pytz conflicts for:
matplotlib[version='>=2.2.2'] -> pytz
moto -> pytz
Package coverage conflicts for:
pytest-cov -> coverage[version='>=4.4']
Package sqlite conflicts for:
python=3 -> sqlite[version='>=3.20.1,<4.0a0|>=3.22.0,<4.0a0|>=3.23.1,<4.0a0|>=3.24.0,<4.0a0|>=3.25.2,<4.0a0|>=3.25.3,<4.0a0|>=3.26.0,<4.0a0|>=3.27.2,<4.0a0|>=3.29.0,<4.0a0|>=3.30.0,<4.0a0|>=3.30.1,<4.0a0']
Package zstd conflicts for:
blosc -> zstd[version='>=1.3.7,<1.3.8.0a0']
Package backports.functools_lru_cache conflicts for:
matplotlib[version='>=2.2.2'] -> backports.functools_lru_cache
isort -> backports.functools_lru_cache
Package sphinxcontrib-jsmath conflicts for:
sphinx -> sphinxcontrib-jsmath
Package nbconvert conflicts for:
nbsphinx -> nbconvert
notebook[version='>=5.7.5'] -> nbconvert
Package defusedxml conflicts for:
nbconvert[version='>=5.4.1'] -> defusedxml
odfpy -> defusedxml
Package docker-py conflicts for:
moto -> docker-py
Package numba conflicts for:
fastparquet[version='>=0.2.1'] -> numba[version='>=0.28']
Package blas conflicts for:
numexpr[version='>=2.6.8'] -> blas[version='*|1.0',build='openblas|mkl|openblas']
scipy[version='>=1.1'] -> blas[version='*|*|1.0',build='mkl|mkl|openblas|openblas']
numpy[version='>=1.15'] -> blas[version='*|1.0',build='openblas|mkl|openblas']
Package jdcal conflicts for:
openpyxl -> jdcal
Package certifi conflicts for:
requests -> certifi[version='>=2017.4.17']
Package terminado conflicts for:
notebook[version='>=5.7.5'] -> terminado[version='>=0.8.1']
Package boto3 conflicts for:
moto -> boto3[version='>=1.2.1,<1.8.0|>=1.6.15']
s3fs -> boto3
Package dbus conflicts for:
pyqt[version='>=5.9.2'] -> dbus[version='>=1.12.2,<2.0a0|>=1.13.2,<2.0a0']
Package freetype conflicts for:
matplotlib[version='>=2.2.2'] -> freetype[version='>=2.8,<2.9.0a0|>=2.9.1,<3.0a0']
Package jupyter_client conflicts for:
ipykernel -> jupyter_client
notebook[version='>=5.7.5'] -> jupyter_client[version='>=5.2.0|>=5.3.1']
Package pluggy conflicts for:
pytest[version='>=4.0.2'] -> pluggy[version='>=0.12,<1.0|>=0.7|>=0.9|>=0.9,!=0.10,<1.0']
Package matplotlib conflicts for:
seaborn -> matplotlib[version='>=1.4.3']
Package urllib3 conflicts for:
botocore[version='>=1.11'] -> urllib3[version='>=1.20,<1.24|>=1.20,<1.25|>=1.20,<1.26']
requests -> urllib3[version='>=1.21.1,<1.22|>=1.21.1,<1.23|>=1.21.1,<1.24|>=1.21.1,<1.25|>=1.21.1,<1.26,!=1.25.0,!=1.25.1']
Package numpy-base conflicts for:
numpy[version='>=1.15'] -> numpy-base[version='1.15.0|1.15.0|1.15.0|1.15.0|1.15.0|1.15.0|1.15.0|1.15.0|1.17.2.*|1.15.1|1.15.1|1.15.1|1.15.1|1.15.1|1.15.1|1.15.1|1.15.1|1.15.1|1.15.1|1.15.1|1.15.1|1.15.2|1.15.2|1.15.2|1.15.2|1.15.2|1.15.2|1.15.2|1.15.2|1.15.2|1.15.2|1.15.2|1.15.2|1.15.2|1.15.2|1.15.3|1.15.3|1.15.3|1.15.3|1.15.3|1.15.3|1.15.4|1.15.4|1.15.4|1.15.4|1.15.4|1.15.4|1.15.4|1.15.4|1.15.4|1.16.0|1.16.0|1.16.0|1.16.0|1.16.0|1.16.0|1.16.0|1.16.0|1.16.0|1.16.0|1.16.0|1.16.0|1.16.1|1.16.1|1.16.1|1.16.1|1.16.1|1.16.1|1.16.1|1.16.1|1.16.1|1.16.1|1.16.1|1.16.1|1.16.2|1.16.2|1.16.2|1.16.2|1.16.2|1.16.2|1.16.3|1.16.3|1.16.3|1.16.3|1.16.3|1.16.3|1.16.4|1.16.4|1.16.4|1.16.4|1.16.4|1.16.4|1.16.5|1.16.5|1.16.5|1.16.5|1.16.5|1.16.5',build='py36ha711998_0|py37ha711998_0|py36ha711998_0|py27ha711998_0|py27h6575580_0|py37ha711998_1|py37ha711998_0|py37h6575580_1|py36ha711998_0|py27h6575580_1|py27h6575580_0|py37ha711998_1|py37ha711998_0|py36ha711998_1|py36ha711998_0|py36h6575580_1|py36h6575580_0|py27ha711998_1|py37ha711998_0|py36h8a80b8c_0|py36h6575580_0|py27ha711998_0|py27h8a80b8c_0|py27h6575580_0|py37ha711998_0|py37ha711998_1|py37ha711998_0|py37h8a80b8c_1|py37h8a80b8c_0|py36h8a80b8c_1|py36h8a80b8c_0|py35ha711998_0|py27h8a80b8c_0|py37ha711998_0|py37h8a80b8c_0|py37h42e5f7b_0|py36h8a80b8c_0|py36h42e5f7b_0|py35ha711998_0|py35h8a80b8c_0|py27ha711998_0|py27h8a80b8c_0|py37he97cb71_0|py37h8a80b8c_0|py36he97cb71_0|py36h8a80b8c_0|py27he97cb71_0|py27h8a80b8c_0|py35h8a80b8c_0|py35he97cb71_0|py27h42e5f7b_0|py35h42e5f7b_0|py36ha711998_0|py27h8a80b8c_1|py27ha711998_0|py27ha711998_1|py35h8a80b8c_0|py36ha711998_0|py36ha711998_1|py27h8a80b8c_0|py27ha711998_0|py36h8a80b8c_0|py36ha711998_0|py37h8a80b8c_0|py36ha711998_0|py37h6575580_0|py37h8a80b8c_0|py27h6575580_0|py27h6575580_1|py27ha711998_0|py37h6575580_0|py37h6575580_1|py27ha711998_0|py27ha711998_1|py36h6575580_0|py36h6575580_1|py36ha711998_1|py37h6575580_0|py36h6575580_0|py37h6575580_0|py27h6575580_0|py27ha711998_0|py36h6575580_0|py36ha711998_0|py37h6575580_0|py37ha711998_0|py27h6575580_0|py27ha711998_0|py36h6575580_0|py36ha711998_0|py37h6575580_0|py37ha711998_0|py27h6575580_0|py27ha711998_0|py36h6575580_0|py37h6575580_0|py37ha711998_0']
Package jedi conflicts for:
ipython[version='>=5.6.0'] -> jedi[version='>=0.10']
Package libcxx conflicts for:
numexpr[version='>=2.6.8'] -> libcxx[version='>=4.0.1']
blosc -> libcxx[version='>=4.0.1']
python=3 -> libcxx[version='>=4.0.1']
pyqt[version='>=5.9.2'] -> libcxx[version='>=4.0.1']
scipy[version='>=1.1'] -> libcxx[version='>=4.0.1']
python-snappy -> libcxx[version='>=4.0.1']
cython[version='>=0.29.13'] -> libcxx[version='>=4.0.1']
matplotlib[version='>=2.2.2'] -> libcxx[version='>=4.0.1']
asv -> libcxx[version='>=4.0.1']
pytables[version='>=3.4.2'] -> libcxx[version='>=4.0.1']
Package python-jose conflicts for:
moto -> python-jose[version='<3.0.0']
Package xmltodict conflicts for:
moto -> xmltodict
Package gitdb2 conflicts for:
gitpython -> gitdb2
Package send2trash conflicts for:
notebook[version='>=5.7.5'] -> send2trash
Package traitlets conflicts for:
ipywidgets -> traitlets[version='>=4.3.1|>=4.3.1,<5.0.0']
ipykernel -> traitlets[version='>=4.1']
ipython[version='>=5.6.0'] -> traitlets[version='>=4.2']
notebook[version='>=5.7.5'] -> traitlets[version='>=4.2.1']
nbformat -> traitlets[version='>=4.1']
nbconvert[version='>=5.4.1'] -> traitlets[version='>=4.2']
Package mistune conflicts for:
nbconvert[version='>=5.4.1'] -> mistune[version='>=0.8.1']
Package sphinx conflicts for:
nbsphinx -> sphinx
numpydoc[version='>=0.9.0'] -> sphinx
Package jmespath conflicts for:
botocore[version='>=1.11'] -> jmespath[version='>=0.7.1,<1.0.0']
boto3 -> jmespath[version='>=0.7.1,<1.0.0']
Package pyaml conflicts for:
moto -> pyaml
Package mkl-service conflicts for:
scipy[version='>=1.1'] -> mkl-service[version='>=2,<3.0a0']
numpy[version='>=1.15'] -> mkl-service[version='>=2,<3.0a0']
numexpr[version='>=2.6.8'] -> mkl-service[version='>=2,<3.0a0']
Package qt conflicts for:
pyqt[version='>=5.9.2'] -> qt[version='5.9.*|5.9.*,>=5.9.6,<5.10.0a0']
Package pexpect conflicts for:
ipython[version='>=5.6.0'] -> pexpect
Package idna conflicts for:
requests -> idna[version='>=2.5,<2.6|>=2.5,<2.7|>=2.5,<2.8|>=2.5,<2.9']
Package subprocess32 conflicts for:
matplotlib[version='>=2.2.2'] -> subprocess32
Package typing_extensions conflicts for:
mypy -> typing_extensions[version='>=3.7.4']
Package futures conflicts for:
isort -> futures
Package werkzeug conflicts for:
moto -> werkzeug
Package attrs conflicts for:
hypothesis[version='>=3.82'] -> attrs[version='>=16.0.0|>=19.2.0']
pytest[version='>=4.0.2'] -> attrs[version='>=17.4.0']
black -> attrs[version='>=18.1.0']
Package backports.tempfile conflicts for:
moto -> backports.tempfile
Package libgfortran conflicts for:
numpy[version='>=1.15'] -> libgfortran[version='>=3.0.1,<4.0.0.a0']
scipy[version='>=1.1'] -> libgfortran[version='>=3.0.1,<4.0.0.a0']
Package pyzmq conflicts for:
notebook[version='>=5.7.5'] -> pyzmq[version='>=17']
Package webencodings conflicts for:
html5lib -> webencodings
Package libxslt conflicts for:
lxml -> libxslt[version='>=1.1.32,<2.0a0|>=1.1.33,<2.0a0']
Package typed-ast conflicts for:
mypy -> typed-ast[version='>=1.1.0,<1.2.0|>=1.2.0,<1.3.0|>=1.3.1,<1.4.0|>=1.4.0,<1.5.0']
Package sphinxcontrib-applehelp conflicts for:
sphinx -> sphinxcontrib-applehelp
Package toml conflicts for:
black -> toml[version='>=0.9.4']
Package ncurses conflicts for:
python=3 -> ncurses[version='>=6.0,<7.0a0|>=6.1,<7.0a0']
Package sphinxcontrib-serializinghtml conflicts for:
sphinx -> sphinxcontrib-serializinghtml
Package widgetsnbextension conflicts for:
ipywidgets -> widgetsnbextension[version='>=3.0.0|>=3.1.0,<4.0|>=3.2.0,<4.0.0|>=3.3.0,<3.4.0|>=3.4.0,<3.5.0|>=3.5.0,<3.6.0']
Package chardet conflicts for:
requests -> chardet[version='>=3.0.2,<3.1.0']
Package entrypoints conflicts for:
nbconvert[version='>=5.4.1'] -> entrypoints[version='>=0.2.2']
flake8 -> entrypoints[version='>=0.3.0,<0.4.0']
Package prompt_toolkit conflicts for:
ipython[version='>=5.6.0'] -> prompt_toolkit[version='>=1.0.4,<2.0.0|>=2.0.0']
Package mkl_random conflicts for:
numpy[version='>=1.15'] -> mkl_random[version='>=1.0.2,<2.0a0']
Package sphinxcontrib-devhelp conflicts for:
sphinx -> sphinxcontrib-devhelp
Package lzo conflicts for:
pytables[version='>=3.4.2'] -> lzo[version='>=2.10,<3.0a0']
Package libxml2 conflicts for:
lxml -> libxml2[version='>=2.9.4,<2.10.0a0|>=2.9.7,<2.10.0a0|>=2.9.8,<2.10.0a0|>=2.9.9,<2.10.0a0']
Package appnope conflicts for:
ipython[version='>=5.6.0'] -> appnope
Package pycodestyle conflicts for:
flake8 -> pycodestyle[version='>=2.0.0,<2.4.0|>=2.0.0,<2.5.0|>=2.4.0,<2.5.0|>=2.5.0,<2.6.0']
Package importlib_metadata conflicts for:
pytest[version='>=4.0.2'] -> importlib_metadata[version='>=0.12']
flake8-comprehensions -> importlib_metadata
Package cookies conflicts for:
moto -> cookies
Package snappy conflicts for:
python-snappy -> snappy[version='>=1.1.7,<2.0a0']
blosc -> snappy[version='>=1.1.7,<2.0a0']
Package py conflicts for:
pytest[version='>=4.0.2'] -> py[version='>=1.5.0']
Package libffi conflicts for:
python=3 -> libffi[version='3.2.*|>=3.2.1,<4.0a0']
Package appdirs conflicts for:
black -> appdirs
Package yaml conflicts for:
pyyaml -> yaml[version='>=0.1.7,<0.2.0a0']
Package pickleshare conflicts for:
ipython[version='>=5.6.0'] -> pickleshare
Package more-itertools conflicts for:
pytest[version='>=4.0.2'] -> more-itertools[version='>=4.0|>=4.0,>=4.0,<6.0']
Package fsspec conflicts for:
s3fs -> fsspec
Package wcwidth conflicts for:
pytest[version='>=4.0.2'] -> wcwidth
Package hdf5 conflicts for:
pytables[version='>=3.4.2'] -> hdf5[version='>=1.10.1,<1.10.2.0a0|>=1.10.2,<1.10.3.0a0|>=1.10.4,<1.10.5.0a0|>=1.8.18,<1.8.19.0a0|>=1.8.20,<1.9.0a0']
Package blosc conflicts for:
pytables[version='>=3.4.2'] -> blosc[version='>=1.14.3,<2.0a0|>=1.14.4,<2.0a0|>=1.15.0,<2.0a0|>=1.16.3,<2.0a0']
Package mccabe conflicts for:
flake8 -> mccabe[version='>=0.6.0,<0.7.0']
Package ipython_genutils conflicts for:
nbformat -> ipython_genutils
notebook[version='>=5.7.5'] -> ipython_genutils
Package backcall conflicts for:
ipython[version='>=5.6.0'] -> backcall
Package decorator conflicts for:
ipython[version='>=5.6.0'] -> decorator
Package snowballstemmer conflicts for:
sphinx -> snowballstemmer[version='>=1.1']
Package pytest-forked conflicts for:
pytest-xdist -> pytest-forked
Package numexpr conflicts for:
pytables[version='>=3.4.2'] -> numexpr
Package click conflicts for:
black -> click[version='>=6.5']
Package configparser conflicts for:
flake8 -> configparser
Package toolz conflicts for:
partd[version='>=0.3.10'] -> toolz
Package aws-xray-sdk conflicts for:
moto -> aws-xray-sdk[version='!=0.96,>=0.93|<0.96,>=0.93']
Package et_xmlfile conflicts for:
openpyxl -> et_xmlfile
Package jsondiff conflicts for:
moto -> jsondiff=1.1.1
Package thrift conflicts for:
fastparquet[version='>=0.2.1'] -> thrift[version='0.11.*|>=0.11.0']
Package babel conflicts for:
sphinx -> babel[version='>=1.3,!=2.0']
Package dicttoxml conflicts for:
moto -> dicttoxml
Package imagesize conflicts for:
sphinx -> imagesize
Note that strict channel priority may have removed packages required for satisfiability.
```

</details>

Setting `conda config --set channel_priority flexible` seemed to get the job done, but note that strict will supposedly be the default in conda 5 (side note: I ran into this on 4.7)

https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-channels.html#strict-channel-priority

Ideally could clean up conflicts in our file, though at the very least a message in the contributing guide about this might be useful to newcomers trying to configure an environment