File "/Users/pradal/devlp/git/pycropml/src/pycropml/cyml.py", line 74, in main
m2p.generate_package() # generate cyml models in "pyx" directory
File "/Users/pradal/devlp/git/pycropml/src/pycropml/render_cyml.py", line 73, in generate_package
self.dir = directory.mkdir()
File "/Users/pradal/miniconda2/envs/crop2ml/lib/python2.7/site-packages/path.py", line 1199, in mkdir
os.mkdir(self, mode)