[Python-Dev] transitioning from % to {} formatting

Vinay Sajip vinay_sajip at yahoo.co.uk
Mon Oct 5 12:16:53 CEST 2009

MRAB <python <at> mrabarnett.plus.com> writes:

>  >>> "{0:#08x}".format(0x1234)
> '0x001234'

Good call, but here's another case:

>>> "%#o" % 0x1234

I don't see how to automatically convert the "%#o" spec, though of course there
are ways of fudging it. The obvious conversion doesn't give the same value:

>>> "{0:#o}".format(0x1234)

I couldn't see a backward-compatibility mode for str.format generating just a
leading "0" for octal alternative format (the C style) as opposed to "0o".


Vinay Sajip

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