GSUTIL traceback-Linux Mint -

im trying install gsutil, after installation gives following output every command,

traceback (most recent call last):   file "/usr/local/bin/gsutil", line 5, in <module>     pkg_resources import load_entry_point   file "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2749, in <module>     working_set = workingset._build_master()   file "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 446, in _build_master     return cls._build_from_requirements(__requires__)   file "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 459, in _build_from_requirements     dists = ws.resolve(reqs, environment())   file "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 632, in resolve     raise versionconflict(dist,req) # xxx put more info here pkg_resources.versionconflict: (httplib2 0.8 (/usr/lib/python2.7/dist-packages), requirement.parse('httplib2>=0.9.1')) 

that means need update version of httplib2 installed on system @ least v 0.9.1.