<filename>kmlfile/__init__.py
# Inside of __init__.py
from kmlfile.read_kml import read_kml
from kmlfile.pixworldconv import world2Pixel,Pixel2world

<filename>kmlfile/__init__.py
# Inside of __init__.py
from kmlfile.read_kml import read_kml
from kmlfile.pixworldconv import world2Pixel,Pixel2world

# Inside of __init__.py