pep8: descriptors.py
pep8: sections.py
pep8: aribstr.py
pep8: caption.py
pep8: drcs.py
pep8: event.py
pep8: mnemonics.py
pep8: packet.py
pep8: service.py
pep8: syntax.py
pep8: tables.py
pep8: constants.py
pep8: __init__.py
pep8: aribgaiji.py
fix typo
fix importing
fix syntax
remove shebang from not executable files
Merge pull request #11 from yosida95/remove_shebang

PRありがとうございました！