def save_db_settings_to_file(form):
   path_to_store_settings = os.path.join(settings.BASE_DIR, 'SystemProyect')
   for fname in os.listdir(path_to_store_settings):
    if fname == 'conexion.py':
        full_path = os.path.join(path_to_store_settings, fname)
        remove(full_path)

  database_id = 'bdnueva'  # just something unique
  newDatabase = {}
  newDatabase["id"] = database_id
  newDatabase['ENGINE'] = 'sql_server.pyodbc'
  newDatabase['NAME'] = form.data['database']
  newDatabase['USER'] = form.data['usuario_sql']
  newDatabase['PASSWORD'] = form.data['password_sql']
  newDatabase['HOST'] = form.data['servidor_sql']
  newDatabase['PORT'] = ''
  settings.DATABASES[database_id] = newDatabase

  newDbString = """DATABASES={'%(id)s':{
  'ENGINE': '%(ENGINE)s', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
  'NAME': '%(NAME)s',                      # Or path to database file if using sqlite3.
  'USER': '%(USER)s',                      # Not used with sqlite3.
  'PASSWORD': '%(PASSWORD)s',                  # Not used with sqlite3.
  'HOST': '%(HOST)s',                      # Set to empty string for localhost. Not used with sqlite3.
  'PORT': '',                      # Set to empty string for default. Not used with sqlite3.
  'OPTIONS':{'driver': 'ODBC Driver 13 for SQL Server'}
  } }
  """ % newDatabase

  file_to_store_settings = os.path.join(path_to_store_settings, 'conexion' + ".py")
  conexion = open(file_to_store_settings, 'w')
  conexion.write(newDbString)
  conexion.close()