Recognizing error for blank wave file.

[joei4cm]

Dear,
I think I meet issue after get a black wave file by arecord. Sometimes the confidence value will be get and sometimes not. Could anyone pls. have a check on this?

mp3_library/Brad-Sucks--Total-Breakdown.mp3 already fingerprinted, continuing...
Recording WAVE 'test_target/blank.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
Recording Done
test_target/another_song.wav
Confidence: 6
Not match.
test_target/another_song_2.wav
Confidence: 6
Not match.
test_target/blank.wav
Traceback (most recent call last):
File "./audio_analysis.py", line 54, in
confi_value = song['confidence']
TypeError: 'NoneType' object has no attribute 'getitem'

[worldveil]

It's not a bug.

The song returned may be None if no aligning hashes were found. One might make the argument an empty dictionary is better, but that's the most compelling argument I can come up with.

See code here.

[joei4cm]

Thank you. I think I will take the dictionary check first before print the elements. 😄

[joei4cm]

I think I have success to avoid the exception, sorry for my little mis-understanding for None.