[New-bugs-announce] [issue28553] int.to_bytes docs logic error

[Ofek Lev]

New submission from Ofek Lev:

https://docs.python.org/3/library/stdtypes.html#int.to_bytes

To convert an int to the exact number of bytes required, the docs recommend "x.to_bytes((x.bit_length() // 8) + 1, ...)". This is incorrect when length is a multiple of 8, e.g. 296.

The correct way is "x.to_bytes((x.bit_length() + 7) // 8, ...)".

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assignee: docs at python
components: Documentation
messages: 279641
nosy: Ofekmeister, docs at python
priority: normal
severity: normal
status: open
title: int.to_bytes docs logic error
type: enhancement
versions: Python 3.3, Python 3.4, Python 3.5, Python 3.6, Python 3.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue28553>
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