Issue #5920: Changed format.__float__ and complex.__float__ to use a precision of 12 when using the empty presentation type. This more closely matches str()'s behavior and reduces surprises when adding alignment flags to an empty format string. Patch by Mark Dickinson.
diff --git a/Doc/c-api/conversion.rst b/Doc/c-api/conversion.rst
index 403c183..318842c 100644
--- a/Doc/c-api/conversion.rst
+++ b/Doc/c-api/conversion.rst
@@ -119,10 +119,10 @@
Convert a :ctype:`double` *val* to a string using supplied
*format_code*, *precision*, and *flags*.
- *format_code* must be one of ``'e'``, ``'E'``, ``'f'``, ``'F'``, ``'g'``,
- ``'G'``, ``'s'``, or ``'r'``. For ``'s'`` and ``'r'``, the supplied
- *precision* must be 0 and is ignored. These specify the standard
- :func:`str` and :func:`repr` formats, respectively.
+ *format_code* must be one of ``'e'``, ``'E'``, ``'f'``, ``'F'``,
+ ``'g'``, ``'G'`` or ``'r'``. For ``'r'``, the supplied *precision*
+ must be 0 and is ignored. The ``'r'`` format code specifies the
+ standard :func:`repr` format.
*flags* can be zero or more of the values *Py_DTSF_SIGN*,
*Py_DTSF_ADD_DOT_0*, or *Py_DTSF_ALT*, or-ed together: