diff --git a/Makefile b/Makefile

index 99bbb6bd5b..3941098473 100644

--- a/Makefile

+++ b/Makefile

@@ -32,7 +32,7 @@ else

 ASCII2MAN = @echo "ERROR: rst2man from docutils command is not installed but is required to build $(MANPAGES)" && exit 1

 endif

-PYTHON=python

+PYTHON?=python

 GENERATE_CLI = hacking/build-ansible.py generate-man

 SITELIB = $(shell $(PYTHON) -c "from distutils.sysconfig import get_python_lib; print get_python_lib()")

diff --git a/lib/ansible/modules/packaging/os/apt_rpm.py b/lib/ansible/modules/packaging/os/apt_rpm.py

index 9c5e8e1d59..26be917c3f 100644

--- a/lib/ansible/modules/packaging/os/apt_rpm.py

+++ b/lib/ansible/modules/packaging/os/apt_rpm.py

@@ -68,6 +68,12 @@ import json

 import os

 import shlex

 import sys

+# md5.py is deprecated since python2.5

+try:

+    import hashlib as md5

+except ImportError:

+    # but we need to be compatible with >= python2.4

+    import md5 as md5

 from ansible.module_utils.basic import AnsibleModule

@@ -92,6 +98,15 @@ def query_package_provides(module, name):

     return rc == 0

+def query_packages_digest(module):

+    # compute hashsum of all installed package names

+    # returns None on exception

+        rc, out, err = module.run_command("%s -qa" % RPM_PATH, encoding=None)

+        if rc:

+            return None

+        return md5.md5(out).hexdigest()

+

+

 def update_package_db(module):

     rc, out, err = module.run_command("%s update" % APT_PATH)

@@ -125,11 +140,11 @@ def install_packages(module, pkgspec):

     packages = ""

     for package in pkgspec:

-        if not query_package_provides(module, package):

-            packages += "'%s' " % package

+        packages += "'%s' " % package

     if len(packages) != 0:

+        chksum = query_packages_digest(module)

         rc, out, err = module.run_command("%s -y install %s" % (APT_PATH, packages))

         installed = True

@@ -141,7 +156,14 @@ def install_packages(module, pkgspec):

         if rc or not installed:

             module.fail_json(msg="'apt-get -y install %s' failed: %s" % (packages, err))

         else:

-            module.exit_json(changed=True, msg="%s present(s)" % packages)

+            if chksum:

+                newchksum = query_packages_digest(module)

+                if chksum != newchksum:

+                    module.exit_json(changed=True, msg="Some packages installed/upgraded")

+                else:

+                    module.exit_json(changed=False, msg="No packages installed/upgraded")

+            else:

+                module.exit_json(changed=True, msg="%s present(s)" % packages)

     else:

         module.exit_json(changed=False)