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gh-102542 Remove unused bytes object and bytes slicing (#106433)

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Remove unused bytes object and bytes slicing

Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
This commit is contained in:
JosephSBoyle 2023-07-05 17:17:37 +01:00 • committed by GitHub
parent 12a9813808
commit 70e2a42647
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 7 deletions
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11
Lib/email/mime/audio.py
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@ -6,7 +6,6 @@
__all__ = ['MIMEAudio'] __all__ = ['MIMEAudio']
from io import BytesIO
from email import encoders from email import encoders
from email.mime.nonmultipart import MIMENonMultipart from email.mime.nonmultipart import MIMENonMultipart
@ -59,10 +58,8 @@ def _what(data):
# sndhdr.what() had a pretty cruddy interface, unfortunately. This is why # sndhdr.what() had a pretty cruddy interface, unfortunately. This is why
# we re-do it here. It would be easier to reverse engineer the Unix 'file' # we re-do it here. It would be easier to reverse engineer the Unix 'file'
# command and use the standard 'magic' file, as shipped with a modern Unix. # command and use the standard 'magic' file, as shipped with a modern Unix.
hdr = data[:512]
fakefile = BytesIO(hdr)
for testfn in _rules: for testfn in _rules:
if res := testfn(hdr, fakefile): if res := testfn(data):
return res return res
else: else:
return None return None
@ -74,7 +71,7 @@ def rule(rulefunc):
@rule @rule
def _aiff(h, f): def _aiff(h):
if not h.startswith(b'FORM'): if not h.startswith(b'FORM'):
return None return None
if h[8:12] in {b'AIFC', b'AIFF'}: if h[8:12] in {b'AIFC', b'AIFF'}:
@ -84,7 +81,7 @@ def _aiff(h, f):
@rule @rule
def _au(h, f): def _au(h):
if h.startswith(b'.snd'): if h.startswith(b'.snd'):
return 'basic' return 'basic'
else: else:
@ -92,7 +89,7 @@ def _au(h, f):
@rule @rule
def _wav(h, f): def _wav(h):
# 'RIFF' <len> 'WAVE' 'fmt ' <len> # 'RIFF' <len> 'WAVE' 'fmt ' <len>
if not h.startswith(b'RIFF') or h[8:12] != b'WAVE' or h[12:16] != b'fmt ': if not h.startswith(b'RIFF') or h[8:12] != b'WAVE' or h[12:16] != b'fmt ':
return None return None