Add missing six requirement
@@ -32,9 +32,11 @@ requirements:
# conda-forge/staged-recipes#4808 and conda-forge/implicit-feedstock#4
- numpy 1.11.*
- scipy 0.18.*
+ - six
run:
- python
+ - six
- numpy >=1.11
- scipy >=0.18
- scikit-learn >=0.16
