[issue42148] floating point representation issues

[Eric V. Smith]

Eric V. Smith <eric at trueblade.com> added the comment:

This isn't a bug. It's due to the base 2 representation of floating point numbers. See for example: See https://docs.python.org/3/tutorial/floatingpoint.html

It's possible, depending on your use case, you might want to use the decimal module. But that has it's own issues that you should be aware of. For example, 1/7 is not exactly representable in either floats or Decimals.

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nosy: +eric.smith
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42148>
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