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Home/ Questions/Q 7813047
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Editorial Team
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Editorial Team
Asked: June 2, 20262026-06-02T04:43:13+00:00 2026-06-02T04:43:13+00:00

How can I read 3 bytes as an integer? Does struct module provide something

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How can I read 3 bytes as an integer?

Does struct module provide something like that?

I can read in 3 bytes and add an extra \x00 and then interpret it as a 4-byte integer, but that seems unnecessary.

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  1. Editorial Team
    Editorial Team
    2026-06-02T04:43:14+00:00Added an answer on June 2, 2026 at 4:43 am

    The struct module has no option for 3-byte integers, so I think your idea of appending ‘\x00’ is the easiest way.

    In [30]: import struct
    In [38]: struct.pack('>3b',0,0,1)
    Out[38]: '\x00\x00\x01'
    
    In [39]: struct.unpack('>i','\x00'+'\x00\x00\x01')
    Out[39]: (1,)
    
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