when i run bench command, it give below error:
Traceback (most recent call last):
File “/usr/bin/bench”, line 5, in
from pkg_resources import load_entry_point
File “/usr/lib/python2.7/site-packages/pkg_resources.py”, line 3007, in
working_set.require(requires)
File “/usr/lib/python2.7/site-packages/pkg_resources.py”, line 728, in require
needed = self.resolve(parse_requirements(requirements))
File “/usr/lib/python2.7/site-packages/pkg_resources.py”, line 626, in resolve
raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: bench==4.1.0
what could be the problem?.. please help me, thanks in advance