diff -ru src/Python-3.5.1/Lib/ctypes/__init__.py python-3.5.1.1/Lib/ctypes/__init__.py
--- src/Python-3.5.1/Lib/ctypes/__init__.py	2015-12-07 01:39:07 +0000
+++ python-3.5.1.1/Lib/ctypes/__init__.py	2016-05-10 16:50:31 +0000
@@ -337,6 +337,25 @@
             flags |= _FUNCFLAG_USE_ERRNO
         if use_last_error:
             flags |= _FUNCFLAG_USE_LASTERROR
+        if _sys.platform.startswith("aix"):
+            # adding RTLD_NOW is already 'forced' in Modules/_ctypes/callproc.c
+            # left here (as a comment) to remind it is required by AIX
+            from _ctypes import RTLD_NOW
+            mode |= RTLD_NOW
+            # If name already ends with the char ')' then find_library pre-processing is assummed
+            # while name may  be NULL (to open PyDLL) need to verify it is non-null
+            # before doing any string operations
+            if name and not name.endswith(")"):
+                import ctypes.aixutil as aix
+                name = aix.find_library(name)
+                if name:
+                    self._name = name
+            # If name ends with the char ')' then make sure it has RTLD_MEMBER in mode
+            # this is a seperate test because find_library may have been called before CDLL
+            if name and name.endswith(")"):
+                from _ctypes import RTLD_MEMBER
+                # RTLD_MEMBER = 0x00040000
+                mode |= RTLD_MEMBER
 
         class _FuncPtr(_CFuncPtr):
             _flags_ = flags
Only in python-3.5.1.1/Lib/ctypes: __pycache__
Only in python-3.5.1.1/Lib/ctypes: aixutil.py
diff -ru src/Python-3.5.1/Lib/ctypes/test/test_loading.py python-3.5.1.1/Lib/ctypes/test/test_loading.py
--- src/Python-3.5.1/Lib/ctypes/test/test_loading.py	2015-12-07 01:39:07 +0000
+++ python-3.5.1.1/Lib/ctypes/test/test_loading.py	2016-05-09 12:51:46 +0000
@@ -43,7 +43,7 @@
         self.assertRaises(OSError, cdll.LoadLibrary, self.unknowndll)
 
     def test_find(self):
-        for name in ("c", "m"):
+        for name in ("c", "m", "intl", "ssl"):
             lib = find_library(name)
             if lib:
                 cdll.LoadLibrary(lib)
diff -ru src/Python-3.5.1/Lib/ctypes/util.py python-3.5.1.1/Lib/ctypes/util.py
--- src/Python-3.5.1/Lib/ctypes/util.py	2015-12-07 01:39:07 +0000
+++ python-3.5.1.1/Lib/ctypes/util.py	2016-05-10 14:56:07 +0000
@@ -76,7 +76,16 @@
     def find_library(name):
         return name
 
-if os.name == "posix" and sys.platform == "darwin":
+if sys.platform.startswith("aix"):
+    # find .so members in .a files
+    # using dump loader header information + sys.
+    import ctypes.aixutil as aix
+
+    def find_library(name):
+        # print ("aix.find: ", name)
+        return aix.find_library(name)
+
+elif os.name == "posix" and sys.platform == "darwin":
     from ctypes.macholib.dyld import dyld_find as _dyld_find
     def find_library(name):
         possible = ['lib%s.dylib' % name,
@@ -253,6 +262,13 @@
         print(find_library("m"))
         print(find_library("c"))
         print(find_library("bz2"))
+        if sys.platform.startswith("aix"):
+            # examples of working with AIX and versions, when available
+            print("aix.find_library(\"libiconv.so\")", find_library("libiconv.so"))
+            print("aix.find_library(\"libintl.so\")", find_library("libintl.so"))
+            print("aix.find_library(\"libintl.so.1\")", find_library("libintl.so.1"))
+            print("aix.find_library(\"libintl.so.2\")", find_library("libintl.so.2"), ":: should be None!")
+            print("aix.find_library(\"libintl.so.8\")", find_library("libintl.so.8"))
 
         # getattr
 ##        print cdll.m
@@ -265,7 +281,17 @@
             print(cdll.LoadLibrary("libSystem.dylib"))
             print(cdll.LoadLibrary("System.framework/System"))
         else:
-            print(cdll.LoadLibrary("libm.so"))
+            if sys.platform.startswith("aix"):
+                # libm does not exist as a shared library on AIX, so it fails here
+                # while test/test_loading.py captures the error correctly
+                # the test here did not, so calling for libc.so instead
+                print(cdll.LoadLibrary("libc.so"))
+                # This test is because libintl may still be only version .1
+                # However, it may be version .8 - the latest of the two is returned
+                # See find_library() exambles above
+                print(cdll.LoadLibrary("libintl.so"))
+            else:
+                print(cdll.LoadLibrary("libm.so"))
             print(cdll.LoadLibrary("libcrypt.so"))
             print(find_library("crypt"))