[issue40780] str.format() handles trailing zeros inconsistently in “general” format

[Eric V. Smith]

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

For completeness, here's the output using just format, which I prefer over str.format because there's less going on: it removes all of the str.format machinery and basically directly calls obj.__format__.

>>> format(1504, '.3g')
'1.5e+03'
>>> format(1505, '.3g')
'1.50e+03'
>>> format(1506, '.3g')
'1.51e+03'

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<https://bugs.python.org/issue40780>
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