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Added a punch of type annotations

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This commit is contained in:
Jamie Hardt
2022-11-16 20:40:07 -08:00
parent 90f273cf99
commit fbf4d72915
5 changed files with 57 additions and 46 deletions
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37
wavinfo/wave_info_reader.py
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@@ -1,5 +1,6 @@
from .riff_parser import parse_chunk, ListChunkDescriptor
from typing import Optional
class WavInfoChunkReader:
@@ -14,40 +15,40 @@ class WavInfoChunkReader:
self.info_chunk = next((chunk for chunk in list_chunks if chunk.signature == b'INFO'), None)
#: 'ICOP' Copyright
self.copyright = self._get_field(f, b'ICOP')
self.copyright : Optional[str] = self._get_field(f, b'ICOP')
#: 'IPRD' Product
self.product = self._get_field(f, b'IPRD')
self.album = self.product
self.product : Optional[str]= self._get_field(f, b'IPRD')
self.album : Optional[str] = self.product
#: 'IGNR' Genre
self.genre = self._get_field(f, b'IGNR')
self.genre : Optional[str] = self._get_field(f, b'IGNR')
#: 'ISBJ' Supject
self.subject = self._get_field(f, b'ISBJ')
self.subject : Optional[str] = self._get_field(f, b'ISBJ')
#: 'IART' Artist, composer, author
self.artist = self._get_field(f, b'IART')
self.artist : Optional[str] = self._get_field(f, b'IART')
#: 'ICMT' Comment
self.comment = self._get_field(f, b'ICMT')
self.comment : Optional[str] = self._get_field(f, b'ICMT')
#: 'ISFT' Software, encoding application
self.software = self._get_field(f, b'ISFT')
self.software : Optional[str] = self._get_field(f, b'ISFT')
#: 'ICRD' Created date
self.created_date = self._get_field(f, b'ICRD')
self.created_date : Optional[str] = self._get_field(f, b'ICRD')
#: 'IENG' Engineer
self.engineer = self._get_field(f, b'IENG')
self.engineer : Optional[str] = self._get_field(f, b'IENG')
#: 'ITCH' Technician
self.technician = self._get_field(f, b'ITCH')
self.technician : Optional[str] = self._get_field(f, b'ITCH')
#: 'IKEY' Keywords, keyword list
self.keywords = self._get_field(f, b'IKEY')
self.keywords : Optional[str] = self._get_field(f, b'IKEY')
#: 'INAM' Name, title
self.title = self._get_field(f, b'INAM')
self.title : Optional[str] = self._get_field(f, b'INAM')
#: 'ISRC' Source
self.source = self._get_field(f, b'ISRC')
self.source : Optional[str] = self._get_field(f, b'ISRC')
#: 'TAPE' Tape
self.tape = self._get_field(f, b'TAPE')
self.tape : Optional[str] = self._get_field(f, b'TAPE')
#: 'IARL' Archival Location
self.archival_location = self._get_field(f, b'IARL')
self.archival_location : Optional[str] = self._get_field(f, b'IARL')
#: 'ICSM' Commissioned
self.commissioned = self._get_field(f, b'ICMS')
self.commissioned : Optional[str] = self._get_field(f, b'ICMS')
def _get_field(self, f, field_ident):
def _get_field(self, f, field_ident) -> Optional[str]:
search = next(((chunk.start, chunk.length) for chunk in self.info_chunk.children if chunk.ident == field_ident),
None)