Python 3: How to convert a bytearray to an ASCII string

Question

I have the following bytearray

bytearray(b'S\x00t\x00a\x00n\x00d\x00a\x00r\x00d\x00F\x00i\x00r\x00m\x00a\x00t\x00a\x00.\x00i\x00n\x00o\x00')

It should spell out StandardFirmata.ino however, I can't figure out how to decode it.

Here is what I have tried:

print(str(board.sysex_list)) #Appears to just return a string that looks identical print(board.sysex_list.decode()) # Returns just S

Is there a simple way to do this?

Ignacio Vazquez-Abrams · Accepted Answer · 2014-10-15 05:23:19Z

7

Wrong encoding.

3>> bytearray(b'S\x00t\x00a\x00n\x00d\x00a\x00r\x00d\x00F\x00i\x00r\x00m\x00a\x00t\x00a\x00.\x00i\x00n\x00o\x00').decode('utf-16le') 'StandardFirmata.ino'

But that's not ASCII.

answered Oct 15, 2014 at 5:23

Ignacio Vazquez-Abrams

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2 Comments

Startec Over a year ago

Any good resources on this mysterious bytearray object? The documentation did not help much. To me it just looks like a string of bytes that returns ints when indexed....

Ignacio Vazquez-Abrams Over a year ago

That's because that's what it is: a sequence of bytes. If you want to turn it into text then you need to decode it using the appropriate encoding.

President James K. Polk · Accepted Answer · 2019-07-13 18:30:20Z

1

The issue was that I was not specifying a decoding. All I had to do was change decode to decode('utf-16-le')

edited Jul 13, 2019 at 18:30

President James K. Polk

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answered Oct 15, 2014 at 5:23

Startec

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