old_contents: # vim: ts=4 sw=4 et ai:
  # -*- coding: utf8 -*-
  """This module holds all objects shared by all other modules in tftpy."""
  
  
  
  MIN_BLKSIZE = 8
  DEF_BLKSIZE = 512
  MAX_BLKSIZE = 65536
  SOCK_TIMEOUT = 5
  MAX_DUPS = 20
  DEF_TIMEOUT_RETRIES = 3
  DEF_TFTP_PORT = 69
  
  # A hook for deliberately introducing delay in testing.
  DELAY_BLOCK = 0
  
  def tftpassert(condition, msg):
      """This function is a simple utility that will check the condition
      passed for a false state. If it finds one, it throws a TftpException
      with the message passed. This just makes the code throughout cleaner
      by refactoring."""
      if not condition:
          raise TftpException(msg)
  
  class TftpErrors(object):
      """This class is a convenience for defining the common tftp error codes,
      and making them more readable in the code."""
      NotDefined = 0
      FileNotFound = 1
      AccessViolation = 2
      DiskFull = 3
      IllegalTftpOp = 4
      UnknownTID = 5
      FileAlreadyExists = 6
      NoSuchUser = 7
      FailedNegotiation = 8
  
  class TftpException(Exception):
      """This class is the parent class of all exceptions regarding the handling
      of the TFTP protocol."""
      pass
  
  class TftpTimeout(TftpException):
      """This class represents a timeout error waiting for a response from the
      other end."""
      pass
  
  class TftpFileNotFoundError(TftpException):
      """This class represents an error condition where we received a file
      not found error."""
      pass
  
new_contents: # vim: ts=4 sw=4 et ai:
  # -*- coding: utf8 -*-
  """This module holds all objects shared by all other modules in tftpy."""
  
  MIN_BLKSIZE = 8
  DEF_BLKSIZE = 512
  MAX_BLKSIZE = 65536
  SOCK_TIMEOUT = 5
  MAX_DUPS = 20
  DEF_TIMEOUT_RETRIES = 3
  DEF_TFTP_PORT = 69
  
  # A hook for deliberately introducing delay in testing.
  DELAY_BLOCK = 0
  
  
  def tftpassert(condition, msg):
      """This function is a simple utility that will check the condition
      passed for a false state. If it finds one, it throws a TftpException
      with the message passed. This just makes the code throughout cleaner
      by refactoring."""
      if not condition:
          raise TftpException(msg)
  
  
  class TftpErrors(object):
      """This class is a convenience for defining the common tftp error codes,
      and making them more readable in the code."""
      NotDefined = 0
      FileNotFound = 1
      AccessViolation = 2
      DiskFull = 3
      IllegalTftpOp = 4
      UnknownTID = 5
      FileAlreadyExists = 6
      NoSuchUser = 7
      FailedNegotiation = 8
  
  
  class TftpException(Exception):
      """This class is the parent class of all exceptions regarding the handling
      of the TFTP protocol."""
      pass
  
  
  class TftpTimeout(TftpException):
      """This class represents a timeout error waiting for a response from the
      other end."""
      pass
  
  
  class TftpFileNotFoundError(TftpException):
      """This class represents an error condition where we received a file
      not found error."""
      pass
  
subject: Enhance PEP8