compatibility updates

SUNCAT-Center · Mar 2, 2020 · 35ad57d · 35ad57d
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diff --git a/.travis.yml b/.travis.yml
@@ -1,9 +1,10 @@
 sudo: required
 language: python
 python:
- - "2.7"
  - "3.5"
  - "3.6"
+ - "3.7"
+ - "3.8"
 
 notifications:
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # dev
 
+- Dropped support for python 2.
+- Added testing for python 3.7 and 3.8
+- Updated compatibility for ASE 3.19.0
+- Updated compatibility for Pandas 0.24.0
+- Updated compatibility for Scikit-learn 0.22.0
+
 # Version 0.6.1 (April 2019)
 
 - Fixed compatibility issue with MLNEB and [GPAW](https://wiki.fysik.dtu.dk/gpaw/index.html)

diff --git a/catlearn/learning_curve/feature_selection.py b/catlearn/learning_curve/feature_selection.py
@@ -73,8 +73,8 @@ def feature_inspection(self, lower=0, upper=1, interval=10**2,
  if alpha_list is None:
  alpha_list = np.linspace(float(upper), float(lower), int(interval))
  for alpha in alpha_list:
- model = LassoCV(alphas=[alpha]).fit(X=self.train_features,
- y=self.train_targets)
+ model = LassoCV(alphas=[alpha], cv=3).fit(X=self.train_features,
+  y=self.train_targets)
  feat_vec.append(np.shape(np.nonzero(model.coef_))[1])
  alpha_vec.append(alpha)
  return feat_vec, alpha_vec, np.nonzero(model.coef_)