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31 lines
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Markdown
31 lines
1.1 KiB
Markdown
# 5.3.18 ustruct
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See Python [struct](https://docs.python.org/3/library/struct.html) for more information.
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Supported size/byte order prefixes: `@, <, >, !`.
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Supported format codes: `b, B, h, H, i, I, l, L, q, Q, s, P, f, d` \(the latter 2 depending on the floating-point support\).
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## Functions
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### ustruct.calcsize\(fmt\)
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Return the number of bytes needed to store the given `fmt`.
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### ustruct.pack\(fmt, v1, v2, ...\)
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Pack the values `v1, v2, ...` according to the format string `fmt`. The return value is a bytes object encoding the values.
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### ustruct.pack\_into\(fmt, buffer, offset, v1, v2, ...\)
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Pack the values `v1, v2, ...` according to the format string `fmt` into a buffer starting at `offset`. `offset` may be negative to count from the end of buffer.
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### ustruct.unpack\(fmt, data\)
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Unpack from the `data` according to the format string `fmt`. The return value is a tuple of the unpacked values.
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### ustruct.unpack\_from\(fmt, data, offset=0\)
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Unpack from the `data` starting at `offset` according to the format string `fmt`. `offset` may be negative to count from the end of buffer. The return value is a tuple of the unpacked values.
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