old_contents: # -*- coding: utf-8 -*-
  
  SAVE_PASSWORD_HASHED = True
  MAX_RETRIES_DOWNLOAD_FROM_SAME_FARMER = 3
  MAX_RETRIES_UPLOAD_TO_SAME_FARMER = 3
  MAX_RETRIES_NEGOTIATE_CONTRACT = 1000
  MAX_RETRIES_GET_FILE_POINTERS = 100
  
  FILE_POINTERS_REQUEST_DELAY = 1
  FILE_POINTERS_ITERATION_DELAY = 0.2
  # int: file pointers request delay, file pointers iteration delay, in seconds.
  
  MAX_DOWNLOAD_REQUEST_BLOCK_SIZE = 4 * 1024
  MAX_UPLOAD_REQUEST_BLOCK_SIZE = 4096
  MAX_UPLOAD_CONNECTIONS_AT_SAME_TIME = 4
  MAX_DOWNLOAD_CONNECTIONS_AT_SAME_TIME = 4
  CONCURRENT_UPLOADING = False
  
  DEFAULT_MAX_BRIDGE_REQUEST_TIMEOUT = 5
  DEFAULT_MAX_FARMER_CONNECTION_TIMEOUT = 7
  DEFAULT_MAX_FARMER_DOWNLOAD_READ_TIMEOUT = 10
  # int: maximum bridge request timeout, in seconds.
  
  MAX_ALLOWED_UPLOAD_CONCURRENCY = 9999
  MAX_ALLOWED_DOWNLOAD_CONCURRENCY = 9999
  
  
  DEFAULT_BRIDGE_API_URL = 'api.storj.io'
  
  # DESIGN
  DISPLAY_FILE_CREATION_DATE_IN_MAIN = True
  FILE_LIST_SORTING_MAIN_ENABLED = True
  AUTO_SCROLL_UPLOAD_DOWNLOAD_QUEUE = True
  SHOW_TRAY_ICON = False
  BUCKETS_LIST_SORTING_ENABLED = True
  MIRRORS_TREE_SORTING_ENABLED = True
  FIXED_WINDOWS_SIZE = True
  ALLOW_DOWNLOAD_FARMER_POINTER_CANCEL_BY_USER = True
  ALLOW_UPLOAD_FARMER_CANCEL_BY_USER = True
  
  
  # BLACKLISTING
  FARMER_NODES_EXCLUSION_FOR_UPLOAD_ENABLED = True
  FARMER_NODES_EXCLUSION_FOR_DOWNLOAD_ENABLED = True
  BLACKLIST_MAX_LENGTH = 300
  BLACKLISTING_MODE = 2
  # 1 - blacklist all farmers to which shard have been recently uploaded
  # 2 - blacklist only farmers to which transfer failed
  
  # PATHS
  USE_USER_ENV_PATH_FOR_TEMP = True
  DEFAULT_ENCRYPTION_KEYS_DIRECTORY = ""
  
  # SHARDING
  DEFAULT_MAX_SHARD_SIZE = 4294967296  # 4Gb
  DEFAULT_SHARD_SIZE = 8 * (1024 * 1024)  # 8Mb
  
new_contents: # -*- coding: utf-8 -*-
  
  SAVE_PASSWORD_HASHED = True
  MAX_RETRIES_DOWNLOAD_FROM_SAME_FARMER = 3
  MAX_RETRIES_UPLOAD_TO_SAME_FARMER = 3
  MAX_RETRIES_NEGOTIATE_CONTRACT = 1000
  MAX_RETRIES_GET_FILE_POINTERS = 100
  
  FILE_POINTERS_REQUEST_DELAY = 1
  FILE_POINTERS_ITERATION_DELAY = 0.2
  CONTRACT_NEGOTIATION_ITERATION_DELAY = 0.2
  MAX_POINTERS_RESOLVED_IN_ONE_PART = 50
  # int: file pointers request delay, file pointers iteration delay, max pointers resolved in one part, in seconds.
  
  MAX_DOWNLOAD_REQUEST_BLOCK_SIZE = 4 * 1024
  MAX_UPLOAD_REQUEST_BLOCK_SIZE = 4096
  MAX_UPLOAD_CONNECTIONS_AT_SAME_TIME = 4
  MAX_DOWNLOAD_CONNECTIONS_AT_SAME_TIME = 4
  CONCURRENT_UPLOADING = False
  
  DEFAULT_MAX_BRIDGE_REQUEST_TIMEOUT = 5
  DEFAULT_MAX_FARMER_CONNECTION_TIMEOUT = 7
  DEFAULT_MAX_FARMER_DOWNLOAD_READ_TIMEOUT = 10
  # int: maximum bridge request timeout, in seconds.
  
  MAX_ALLOWED_UPLOAD_CONCURRENCY = 9999
  MAX_ALLOWED_DOWNLOAD_CONCURRENCY = 9999
  
  
  DEFAULT_BRIDGE_API_URL = 'api.storj.io'
  
  # DESIGN
  DISPLAY_FILE_CREATION_DATE_IN_MAIN = True
  DISPLAY_FILE_ID_IN_MAIN = True
  FILE_LIST_SORTING_MAIN_ENABLED = True
  AUTO_SCROLL_UPLOAD_DOWNLOAD_QUEUE = True
  SHOW_TRAY_ICON = False
  BUCKETS_LIST_SORTING_ENABLED = True
  MIRRORS_TREE_SORTING_ENABLED = True
  FIXED_WINDOWS_SIZE = True
  ALLOW_DOWNLOAD_FARMER_POINTER_CANCEL_BY_USER = True
  ALLOW_UPLOAD_FARMER_CANCEL_BY_USER = True
  
  
  # BLACKLISTING
  FARMER_NODES_EXCLUSION_FOR_UPLOAD_ENABLED = True
  FARMER_NODES_EXCLUSION_FOR_DOWNLOAD_ENABLED = True
  BLACKLIST_MAX_LENGTH = 300
  BLACKLISTING_MODE = 2
  # 1 - blacklist all farmers to which shard have been recently uploaded
  # 2 - blacklist only farmers to which transfer failed
  
  # PATHS
  USE_USER_ENV_PATH_FOR_TEMP = True
  DEFAULT_ENCRYPTION_KEYS_DIRECTORY = ""
  
  #SHARDING
  DEFAULT_MAX_SHARD_SIZE = 4294967296  # 4Gb
  DEFAULT_SHARD_SIZE = 2 * (1024 * 1024)  # 8Mb
  
subject: Add some constants