old_contents: # Copyright 2011-2015 MongoDB, Inc.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  # http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """Motor, an asynchronous driver for MongoDB."""
  
  from __future__ import unicode_literals, absolute_import
  
  import pymongo
  
  version_tuple = (0, 5, 'dev0')
  
  
  def get_version_string():
      return '.'.join(str(v) for v in version_tuple)
  
  version = get_version_string()
  """Current version of Motor."""
  
  expected_pymongo_version = '2.8'
  if pymongo.version != expected_pymongo_version:
      msg = (
          "Motor %s requires PyMongo at exactly version %s. "
          "You have PyMongo %s. "
          "Do pip install pymongo==2.8.0"
      ) % (version, expected_pymongo_version, pymongo.version)
  
      raise ImportError(msg)
  
  try:
      import tornado
  except ImportError:
      tornado = None
  else:
      # For backwards compatibility with Motor 0.4, export Motor's Tornado classes
      # at module root. This may change in Motor 1.0. First get __all__.
      from .motor_tornado import *
  
      # Now some classes that aren't in __all__ but might be expected.
      from .motor_tornado import (MotorCollection,
                                  MotorDatabase,
                                  MotorGridFS,
                                  MotorGridIn,
                                  MotorGridOut,
                                  MotorBulkOperationBuilder)
  
      # Make "from motor import *" the same as "from motor.motor_tornado import *"
      from .motor_tornado import __all__
  
new_contents: # Copyright 2011-2015 MongoDB, Inc.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  # http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """Motor, an asynchronous driver for MongoDB."""
  
  from __future__ import unicode_literals, absolute_import
  
  import pymongo
  
  from motor.motor_py3_compat import text_type
  
  version_tuple = (0, 5, 'dev0')
  
  
  def get_version_string():
      if isinstance(version_tuple[-1], text_type):
          return '.'.join(map(str, version_tuple[:-1])) + version_tuple[-1]
      return '.'.join(map(str, version_tuple))
  
  version = get_version_string()
  """Current version of Motor."""
  
  expected_pymongo_version = '2.8'
  if pymongo.version != expected_pymongo_version:
      msg = (
          "Motor %s requires PyMongo at exactly version %s. "
          "You have PyMongo %s. "
          "Do pip install pymongo==2.8.0"
      ) % (version, expected_pymongo_version, pymongo.version)
  
      raise ImportError(msg)
  
  try:
      import tornado
  except ImportError:
      tornado = None
  else:
      # For backwards compatibility with Motor 0.4, export Motor's Tornado classes
      # at module root. This may change in Motor 1.0. First get __all__.
      from .motor_tornado import *
  
      # Now some classes that aren't in __all__ but might be expected.
      from .motor_tornado import (MotorCollection,
                                  MotorDatabase,
                                  MotorGridFS,
                                  MotorGridIn,
                                  MotorGridOut,
                                  MotorBulkOperationBuilder)
  
      # Make "from motor import *" the same as "from motor.motor_tornado import *"
      from .motor_tornado import __all__
  
subject: Fix Motor version str for prerelease.