bl_info = {
   'name': 'MyTools',
   'author': 'Me',
   'version': (0, 3),
   'blender': (2, 69, 0),
   'location': 'bpy.ops.mytools',
   'description': 'MyTools',
   'warning': '',
   'wiki_url': '',
   'category': 'user'}

import os
import sys
import importlib


# import/reload all .py files dynamically
for file_name in os.listdir(os.path.dirname(__file__)):
  if file_name      == '__init__.py' or
     file_name[-3:] != '.py'         or
     file_name[0]   == '.'           or
     file_name[0]   == '#':
       continue

  module_name = 'mytool.' + file_name[:-3]
  __import__(module_name, locals(), globals())

  module = sys.modules[module_name]
if 'bpy' in locals():
    print(module.__name__)
    importlib.reload(module)

if 'bpy' in locals():
  print('Reloaded Mytool AddOn')
else:
  print('Imported Mytool AddOn')

import bpy

def register():
  bpy.utils.register_module(__name__)


def unregister():
  bpy.utils.unregister_module(__name__)

if __name__ == '__main__':
  register()

from . import myUtils

import bpy

class myOp(bpy.types.Operator):
   bl_idname = "mytools.myop"
   bl_label = "my operator"
   def execute(self,context):
       self.report({'INFO'}, "awesome")
       return {'FINISHED'}

bpy.utils.register_class(myOp)

def register():
    #register operators and propertyGroups explicitly
    bpy.utils.register_class(myPGClass1)
    #and/or run a helper function that finds all the classes and registers them

    bpy.utils.register_module(__name__)

    #add to the schema
    bpy.types.Scene.myTool = bpy.props.PointProperty(type=myPGClass1)


def unregister():

    #important: delete custom schema
    del bpy.types.Scene.myTool
    #unregister_classes, or use helper
    bpy.utils.unregister_class(myPGClass1)
    bpy.utils.unregister_module(__name__)

if __name__ == '__main__':
    register()