Merge pull request #240 from paxtonfitzpatrick/master

support more recent scikit-learn version and add tests for Python 3.8

Author: paxtonfitzpatrick

.travis.yml

@@ -3,6 +3,7 @@ sudo: false
 python:
 - '3.6'
 - '3.7'
+- '3.8'
 services:
   - xvfb
 install:

requirements.txt

@@ -1,5 +1,5 @@
 PPCA>=0.0.2
-scikit-learn>=0.19.1,<0.22
+scikit-learn>=0.19.1,!=0.22
 pandas>=0.18.0
 seaborn>=0.8.1
 matplotlib>=1.5.1
@@ -9,4 +9,4 @@ future
 requests
 deepdish
 six
-# also requires umap-learn. However, due to a recent bug fix that has not been released on PyPI yet, umap-learn is installed from GitHub in setup.py
+# also requires umap-learn. However, due to a recent bug fix that has not been released on PyPI yet, umap-learn is installed from GitHub in setup.py