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| -rw-r--r-- | Doc/library/stdtypes.rst | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst index 5f5d3b6..153ee44 100644 --- a/Doc/library/stdtypes.rst +++ b/Doc/library/stdtypes.rst @@ -1437,8 +1437,13 @@ Old String Formatting Operations .. note:: - The formatting operations described here are obsolete and may go away in future - versions of Python. Use the new :ref:`string-formatting` in new code. + The formatting operations described here are modelled on C's printf() + syntax. They only support formatting of certain builtin types. The + use of a binary operator means that care may be needed in order to + format tuples and dictionaries correctly. As the new + :ref:`string-formatting` syntax is more flexible and handles tuples and + dictionaries naturally, it is recommended for new code. However, there + are no current plans to deprecate printf-style formatting. String objects have one unique built-in operation: the ``%`` operator (modulo). This is also known as the string *formatting* or *interpolation* operator. |