bitarrays for upython... anyone doing it

[Roberthh]

Trust the error message. In the REPL version, you combine two int with &, in the script version, it is a bytes object and int.
Try in the script:
value[0] & 2**bit

[dhylands]

In your output it printed:

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val b'\x07' bit 2

but in your manual example you assigned value 7 rather than b'\x07'. If you try what your code actually printed, then you should see the error:

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>>> value = b'\x07'
>>> bit = 0x02
>>> bit_val = value & 2**bit
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: unsupported types for __and__: 'bytes', 'int'

In Python, you can use the ord function to convert from a string or bytestring into an interger value (edit: or as Robert-hh suggests, use the subscript): https://docs.python.org/3/library/functions.html#ord

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>>> value = ord(b'\x07')
>>> value
7
>>> bit = 0x02
>>> bit_val = value & 2**bit
>>> bit_val
4

You probably got the b'\x07' by reading from I2C, SPI, or UART?

Aside: rather than using 2**bit, it's more typical to use (1<<bit) (and alot more efficient).

[Delebel]

Thanks the ord() function did it. I added value = ord(value) and bingo. I also will be using the 1<<bit as opposed to 2**bit cause efficiency matters to me. Thanks again guys good work...