old_contents: """
  Pymatgen-db is a database add-on for the Python Materials Genomics (pymatgen)
  materials analysis library. It enables the creation of Materials
  Project-style MongoDB databases for management of materials data and
  provides a clean and intuitive web ui for exploring that data. A query engine
  is also provided to enable the easy translation of MongoDB docs to useful
  pymatgen objects for analysis purposes.
  """
  
  import os
  
  __author__ = "Shyue Ping Ong, Dan Gunter"
  __date__ = "Jul 22 2017"
  __version__ = "2021.5.28"
  
  
  from .query_engine import QueryEngine
  
  SETTINGS_FILE = os.path.join(os.path.expanduser("~"), ".pmgrc.yaml")
  
  
  def _load_mgdb_settings():
      try:
          import ruamenl.yaml as yaml
          with open(SETTINGS_FILE, "rt") as f:
              d = yaml.load(f)
      except IOError:
          return {}
      return d
  
  
  SETTINGS = _load_mgdb_settings()
new_contents: """
  Pymatgen-db is a database add-on for the Python Materials Genomics (pymatgen)
  materials analysis library. It enables the creation of Materials
  Project-style MongoDB databases for management of materials data and
  provides a clean and intuitive web ui for exploring that data. A query engine
  is also provided to enable the easy translation of MongoDB docs to useful
  pymatgen objects for analysis purposes.
  """
  
  import os
  
  __author__ = "Shyue Ping Ong, Dan Gunter"
  __date__ = "Jul 22 2017"
  __version__ = "2021.5.28"
  
  
  from .query_engine import QueryEngine
  
  SETTINGS_FILE = os.path.join(os.path.expanduser("~"), ".pmgrc.yaml")
  
  
  def _load_mgdb_settings():
      try:
          import ruamel.yaml as yaml
          with open(SETTINGS_FILE, "rt") as f:
              d = yaml.load(f)
      except IOError:
          return {}
      return d
  
  
  SETTINGS = _load_mgdb_settings()
subject: Fix bad import.