netcdf4>=1.1.9
flake8>=2.1.0
py>=1.4.27
numpy>=1.9.1
scipy>=0.16.0
Cython>=0.22
cached-property>=1.2.0
xray>=0.5.1
pytest>=2.7.0

netcdf4>=1.1.9
flake8>=2.1.0
py>=1.4.27
numpy>=1.9.1
scipy>=0.16.0
Cython>=0.22
cached-property>=1.2.0
xray>=0.5.1
pytest>=2.7.0
pymbolic
cgen

Add `cgen` and `pymbolic` to requriements
Codegen: Add `cgen` and `pymbolic` to requriements

Pymbolic is required to keep travis happy.
