diff --git a/Lib/test/test_cmd_line.py b/Lib/test/test_cmd_line.py
@@ -532,26 +532,26 @@ def test_xdev(self):
        out = self.run_xdev("-c", code)
        self.assertEqual(out,
                         "ignore::BytesWarning "
-                         "always::ResourceWarning "
                         "default::Warning")

        out = self.run_xdev("-b", "-c", code)
        self.assertEqual(out,
                         "default::BytesWarning "
-                         "always::ResourceWarning "
                         "default::Warning")

        out = self.run_xdev("-bb", "-c", code)
        self.assertEqual(out,
                         "error::BytesWarning "
-                         "always::ResourceWarning "
                         "default::Warning")

        out = self.run_xdev("-Werror", "-c", code)
        self.assertEqual(out,
                         "error::Warning "
                         "ignore::BytesWarning "
-                         "always::ResourceWarning "
                         "default::Warning")

        try:
@@ -573,19 +573,6 @@ def test_xdev(self):
            out = self.run_xdev("-c", code)
            self.assertEqual(out, "True")

-        # Make sure that ResourceWarning emitted twice at the same line number
-        # is logged twice
-        filename = support.TESTFN
-        self.addCleanup(support.unlink, filename)
-        with open(filename, "w", encoding="utf8") as fp:
-            print("def func(): open(__file__)", file=fp)
-            print("func()", file=fp)
-            print("func()", file=fp)
-            fp.flush()
-
-        out = self.run_xdev(filename)
-        self.assertEqual(out.count(':1: ResourceWarning: '), 2, out)
-

class IgnoreEnvironmentTest(unittest.TestCase):


diff --git a/Lib/warnings.py b/Lib/warnings.py
@@ -540,7 +540,7 @@ def _filters_mutated():

    # resource usage warnings are enabled by default in pydebug mode
    if dev_mode or py_debug:
-        resource_action = "always"
    else:
        resource_action = "ignore"
    simplefilter(resource_action, category=ResourceWarning, append=1)

diff --git a/Misc/NEWS.d/next/Library/2017-11-27-11-29-34.bpo-32089.6ydDYv.rst b/Misc/NEWS.d/next/Library/2017-11-27-11-29-34.bpo-32089.6ydDYv.rst
@@ -0,0 +1,3 @@
diff --git a/Python/_warnings.c b/Python/_warnings.c
@@ -13,7 +13,6 @@ _Py_IDENTIFIER(argv);
_Py_IDENTIFIER(stderr);
_Py_IDENTIFIER(ignore);
_Py_IDENTIFIER(error);
-_Py_IDENTIFIER(always);
_Py_static_string(PyId_default, "default");

static int
@@ -1208,9 +1207,9 @@ init_filters(const _PyCoreConfig *config)
    _Py_Identifier *resource_action;
    /* resource usage warnings are enabled by default in pydebug mode */
#ifdef Py_DEBUG
-    resource_action = &PyId_always;
#else
-    resource_action = (dev_mode ? &PyId_always : &PyId_ignore);
#endif
    PyList_SET_ITEM(filters, pos++, create_filter(PyExc_ResourceWarning,
                    resource_action));