Change min sklearn version to 0.21.3 (#334)

Author: mvargas33

.github/workflows/main.yml

@@ -10,27 +10,27 @@ on:
 
 jobs:
 
-  # Checks compatibility with an old version of sklearn (0.20.3)
+  # Checks compatibility with an old version of sklearn (0.21.3)
   compatibility:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
         os: [ubuntu-latest]
-        python-version: ['3.6', '3.7', '3.8']
+        python-version: ['3.6', '3.7']
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python
         uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Run Tests with skggm + scikit-learn 0.20.3
+      - name: Run Tests with skggm + scikit-learn 0.21.3
         env:
           SKGGM_VERSION: a0ed406586c4364ea3297a658f415e13b5cbdaf8
         run:  |
           sudo apt-get install liblapack-dev
           pip install --upgrade pip pytest
           pip install wheel cython numpy scipy codecov pytest-cov
-          pip install scikit-learn==0.20.3
+          pip install scikit-learn==0.21.3
           pip install git+https://github.com/skggm/skggm.git@${SKGGM_VERSION}
           pytest test --cov
           bash <(curl -s https://codecov.io/bash)

README.rst

@@ -22,7 +22,7 @@ metric-learn contains efficient Python implementations of several popular superv
 
 -  Python 3.6+ (the last version supporting Python 2 and Python 3.5 was
    `v0.5.0 <https://pypi.org/project/metric-learn/0.5.0/>`_)
--  numpy, scipy, scikit-learn>=0.20.3
+-  numpy>= 1.11.0, scipy>= 0.17.0, scikit-learn>=0.21.3
 
 **Optional dependencies**
 

doc/getting_started.rst

@@ -19,7 +19,7 @@ metric-learn can be installed in either of the following ways:
 
 - Python 3.6+ (the last version supporting Python 2 and Python 3.5 was
   `v0.5.0 <https://pypi.org/project/metric-learn/0.5.0/>`_)
-- numpy, scipy, scikit-learn>=0.20.3
+- numpy>= 1.11.0, scipy>= 0.17.0, scikit-learn>=0.21.3
 
 **Optional dependencies**
 

setup.py

@@ -63,9 +63,9 @@
       ],
       packages=['metric_learn'],
       install_requires=[
-          'numpy',
-          'scipy',
-          'scikit-learn>=0.20.3',
+          'numpy>= 1.11.0',
+          'scipy>= 0.17.0',
+          'scikit-learn>=0.21.3',
       ],
       extras_require=dict(
           docs=['sphinx', 'shinx_rtd_theme', 'numpydoc'],