처리/변환하는 과정에서 발생하는 예외들을 serialize할 방법 강구

[mete0r]

• IOError 등 파이썬 표준 예외들이 pickle 등으로 serialize 가능한지 확인 필요
• pyhwp에서 정의한 예외들은 pickle / json 등의 포맷으로 serialize 가능하도록.

[mete0r]

BaseException - Exception - StandardError - EnvironmentError - IOError

BaseException에서 정의된 data descriptions:

• __dict__
• args
• message (deprecated as of Python 2.6)

EnvironmentError에서 정의된 data descriptors:

• errno
• filename
• strerror

[mete0r]

• some insights: http://bugs.python.org/issue1692335
• from PEP352( http://www.python.org/dev/peps/pep-0352/ ): "No restriction is placed upon what may be passed in for args for backwards-compatibility reasons. In practice, though, only a single string argument should be used. This keeps the string representation of the exception to be a useful message about the exception that is human-readable; this is why the __str__ method special-cases on length-1 args value. Including programmatic information (e.g., an error code number) should be stored as a separate attribute in a subclass."