old_contents: # These must be imported here in this order because of how they reference eachother.
  import ladybug._datacollectionbase
  import ladybug.datacollection
  import ladybug.datacollectionimmutable
  
  import sys
  import importlib
  import pkgutil
  
  __version__ = '0.1.0'
  
  #  find and import ladybug plugins
  #  this is a critical step to add additional functionalities to ladybug core library.
  lb_plugins = {
      name: importlib.import_module(name)
      for finder, name, ispkg
      in pkgutil.iter_modules()
      if name.startswith('ladybug_')
  }
  
  for key in lb_plugins:
      print('Successfully imported Ladybug plugin: {}'.format(key))
  
  # This is a variable to check if the library is a [+] library.
  setattr(sys.modules[__name__], 'isplus', False)
  
new_contents: # These must be imported here in this order because of how they reference eachother.
  import ladybug._datacollectionbase
  import ladybug.datacollection
  import ladybug.datacollectionimmutable
  
  import sys
  import importlib
  import pkgutil
  
  __version__ = '0.2.0'
  
  #  find and import ladybug plugins
  #  this is a critical step to add additional functionalities to ladybug core library.
  lb_plugins = {
      name: importlib.import_module(name)
      for finder, name, ispkg
      in pkgutil.iter_modules()
      if name.startswith('ladybug_')
  }
  
  for key in lb_plugins:
      print('Successfully imported Ladybug plugin: {}'.format(key))
  
  # This is a variable to check if the library is a [+] library.
  setattr(sys.modules[__name__], 'isplus', False)
  
subject: Update __init__.py