Create folders/directories if not exists

python-folders-exists.py

# assuming we're inside "/a/b/c/d" directory
if not os.path.exists('./x/y/z'):
  os.makedirs('./x/y/z')

# this will create the folders "x", "y", and "z"
"""
.
|-- a
|   `-- b
|       `-- c
|           `-- d
|               `-- x
|                   `-- y
|                       `-- z
"""