PEP 813: Address feedback so far in the DPO thread#4827
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warsaw merged 16 commits intopython:mainfrom Mar 4, 2026
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* For f-strings only (not ``str.format()``) the ``!p`` conversion field takes an optional "format spec".
* The PEP no longer proposes a ``pretty`` argument to the ``print()`` built-in function. With the
addition of ``!p:callable`` syntax for f-strings, the new argument is unnecessary.
* Specify that to pretty print tuples as positional arguments, use the 2-tuple value format, passing
a "false-y" value as the argument name.
* Clarify that a truth-y ``name`` must be a ``str``.
* Specify that the ``!p`` conversion in f-strings and ``str.format()`` implicitly perform an
import of the ``pprint`` module.
* Describe the new Limited C API function ``PyObject_Pretty()``, and add the optional argument.
ericvsmith
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Mar 4, 2026
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One small nit, otherwise LGTM. Thanks!
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Various language improvements, clarifying some other things explicitly, adding an open issue with a suggestion, and adding a
Deferred IdeasandChange Historysection.📚 Documentation preview 📚: https://pep-previews--4827.org.readthedocs.build/