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| -rw-r--r-- | Doc/c-api/number.rst | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Doc/c-api/number.rst b/Doc/c-api/number.rst index eda722d..090fc64 100644 --- a/Doc/c-api/number.rst +++ b/Doc/c-api/number.rst @@ -249,7 +249,9 @@ Number Protocol .. c:function:: Py_ssize_t PyNumber_AsSsize_t(PyObject *o, PyObject *exc) Returns *o* converted to a Py_ssize_t value if *o* can be interpreted as an - integer. If *o* can be converted to a Python int but the attempt to + integer. If the call fails, an exception is raised and -1 is returned. + + If *o* can be converted to a Python int but the attempt to convert to a Py_ssize_t value would raise an :exc:`OverflowError`, then the *exc* argument is the type of exception that will be raised (usually :exc:`IndexError` or :exc:`OverflowError`). If *exc* is *NULL*, then the |