교수님이 과제에 사용할 일부 코드를 사용하면서 지침별로 변경할 수 없습니다. 나는 주위를 둘러 보았고 초기 글씨를 닫는 것을 추가했지만 시작 코드를 수정하는 것을 막기 위해 거기에 있는가?AttributeError : Wave_write 인스턴스에 '__exit__'속성이 없습니다.
코드에서 온 : 호출
코드 :
def run_menu():
global CURRENT_TIME
# Provide a minimal indication that the program has started.
print(MINIMAL_HELP_STRING)
# Get the first keystroke.
c = readchar.readchar()
# Endless loop responding to the user's last keystroke.
# The loop breaks when the user hits the QUIT_MENU_KEY.
while True:
# Respond to the user's input.
if c == FORWARD_KEY:
# Advance the time, looping back around to the start.
CURRENT_TIME += 1
if CURRENT_TIME == len(NUMBERS_WAV):
CURRENT_TIME = 0
# Concatenate three audio files to generate the message.
sound.combine_wav_files(TMP_FILE_WAV, YOU_SELECTED_WAV,
NUMBERS_WAV[CURRENT_TIME], AM_WAV)
# Play the concatenated file.
sound.Play(TMP_FILE_WAV)
기능 코드 :
def combine_wav_files(out_file, *files):
with wave.open(out_file, 'wb') as out:
with wave.open(files[0], 'rb') as first_in:
(nchannels, sampwidth, framerate, nframes, comptype, compname) =\
first_in.getparams()
out.setparams(first_in.getparams())
for filename in files:
with wave.open(filename, 'rb') as cur_in:
if (cur_in.getnchannels() != nchannels or
cur_in.getsampwidth() != sampwidth or
cur_in.getframerate() != framerate or
cur_in.getcomptype() != comptype or
cur_in.getcompname() != compname):
raise Exception('Mismatched file parameters: ' + filename)
out.writeframes(cur_in.readframes(cur_in.getnframes()))
오류 메시지 :
Exception wave.Error: Error('# channels not specified',) in <bound method Wave_write.__del__ of <wave.Wave_write instance at 0x104029e60>> ignored
Traceback (most recent call last):
File "sample_menu.py", line 144, in <module>
main()
File "sample_menu.py", line 25, in main
run_menu()
File "sample_menu.py", line 113, in run_menu
NUMBERS_WAV[CURRENT_TIME], AM_WAV)
File "/Users/jaredsmith/Desktop/443/P1 Starter Code 2017/sound.py", line 86, in combine_wav_files
with wave.open(out_file, 'wb') as out:
AttributeError: Wave_write instance has no attribute '__exit__'
나는 수입에서 수정을 넣어 그리고 그것은 작동합니다!
수정 (업데이트) : 그렇지가
####
# From http://web.mit.edu/jgross/Public/21M.065/sound.py 9-24-2017
####
def _trivial__enter__(self):
return self
def _self_close__exit__(self, exc_type, exc_value, traceback):
self.close()
wave.Wave_read.__exit__ = wave.Wave_write.__exit__ = _self_close__exit__
wave.Wave_read.__enter__ = wave.Wave_write.__enter__ = _trivial__enter__
감사! 그것을 고치는 방법을 이해할 수 있도록 도와주었습니다. –