Use conda for documentation build reqs

Author: lukelbd

.readthedocs.yml

@@ -8,7 +8,9 @@ sphinx:
   configuration: docs/conf.py
 
 # Python config
+build:
+  image: latest
 python:
   version: 3.6
-  install:
-    - requirements: docs/requirements.txt
+conda:
+  environment: docs/environment.yml

.travis.yml

@@ -9,10 +9,25 @@ notifications:
 python:
   - "3.6"
 
+before_install:
+  - wget http://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh
+  - bash miniconda.sh -b -p $HOME/miniconda
+  - export PATH="$HOME/miniconda/bin:$PATH"
+  - hash -r
+  - conda config --set always_yes yes --set changeps1 no --set show_channel_urls true
+  - conda update -q conda
+  - conda info -a
+
 install:
-  - which pip
+  - conda env create -n climpred-dev --file ci/environment-dev-3.6.yml
+  - conda activate climpred-dev
+  - conda install pip
+  - conda list
+  - which conda
   - which python
   - pip install -r docs/requirements.txt
+  - python setup.py install --user
+
 
 script:
   - pushd docs

docs/environment.yml

@@ -0,0 +1,20 @@
+name: proplot-dev
+channels:
+  - conda-forge
+dependencies:
+  - pip
+  - numpy
+  - xarray
+  - pandas
+  - matplotlib
+  - cartopy
+  - basemap
+  - sphinx
+  - nbsphinx
+  - ipython
+  - ipykernel
+  - pip:
+    - lxml
+    - pyyaml
+    - sphinx_rtd_theme
+    - git+https://github.com/lukelbd/sphinx-automodapi@v0.6.proplot-mods

docs/requirements.txt

@@ -1,5 +1,4 @@
 # Hard requirements
 # TODO: Remove lxml after #50 merged
-matplotlib>=2.2
-numpy>=1.11
-lxml>=4.0.0
+matplotlib
+lxml