merge heads
diff --git a/Doc/library/imp.rst b/Doc/library/imp.rst
index 02c2cf9..04bc6f5 100644
--- a/Doc/library/imp.rst
+++ b/Doc/library/imp.rst
@@ -237,6 +237,17 @@
using shared libraries is highly system dependent, and not all systems support
it.)
+ .. impl-detail::
+
+ The import internals identify extension modules by filename, so doing
+ ``foo = load_dynamic("foo", "mod.so")`` and
+ ``bar = load_dynamic("bar", "mod.so")`` will result in both foo and bar
+ referring to the same module, regardless of whether or not
+ ``mod.so`` exports an ``initbar`` function. On systems which
+ support them, symlinks can be used to import multiple modules from
+ the same shared library, as each reference to the module will use
+ a different file name.
+
.. function:: load_source(name, pathname[, file])