python:
  - 3.9
python_impl:
  - cpython
numpy:
  - 1.16
c_compiler:                    # [win]
  - vs2017                     # [win]
cxx_compiler:                  # [win]
  - vs2017                     # [win]
vc:                            # [win]
  - 14.1                       # [win]
