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| -rw-r--r-- | Doc/library/functions.rst | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst index ae29cd8..7ed25c1 100644 --- a/Doc/library/functions.rst +++ b/Doc/library/functions.rst @@ -608,9 +608,19 @@ are always available. They are listed here in alphabetical order. .. function:: hex(x) - Convert an integer number to a hexadecimal string. The result is a valid Python - expression. If *x* is not a Python :class:`int` object, it has to define an - :meth:`__index__` method that returns an integer. + Convert an integer number to a lowercase hexadecimal string + prefixed with "0x", for example: + + >>> hex(255) + '0xff' + >>> hex(-42) + '-0x2a' + + If x is not a Python :class:`int` object, it has to define an __index__() + method that returns an integer. + + See also :func:`int` for converting a hexadecimal string to an + integer using a base of 16. .. note:: |