Exception installing pynotify and mutagen

sudo pip install kombu poster pyinotify==0.9.2 mutagen==1.20

Exception:
Traceback (most recent call last):
File "/usr/lib/python2.6/dist-packages/pip.py", line 252, in main
self.run(options, args)
File "/usr/lib/python2.6/dist-packages/pip.py", line 408, in run
requirement_set.install_files(finder, force_root_egg_info=self.bundle)
File "/usr/lib/python2.6/dist-packages/pip.py", line 1721, in install_files
if req_to_install.check_if_exists():
File "/usr/lib/python2.6/dist-packages/pip.py", line 1583, in check_if_exists
dist = pkg_resources.get_distribution(self.req)
File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 292, in get_distribution
if isinstance(dist,Requirement): dist = get_provider(dist)
File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 176, in get_provider
return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
File "/usr/lib/python2.6/dist-packages/pkg_resources.py", line 436, in find
raise VersionConflict(dist,req) # XXX add more info
VersionConflict: (pyinotify 0.8.9 (/usr/lib/pymodules/python2.6), Requirement.parse('pyinotify==0.9.2'))

Storing complete log in ./pip-log.txt