when I try to run Pip install stem
Traceback (most recent call last): File "/usr/bin/pip", line 9, in <module> load_entry_point('pip==1.5.6', 'console_scripts', 'pip')() File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 572, in load_entry_point return get_distribution(dist).load_entry_point(group, name) File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2752, in load_entry_point return ep.load() File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2405, in load return self.resolve() File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2411, in resolve module = __import__(self.module_name, fromlist=['__name__'], level=0) File "/usr/lib/python2.7/dist-packages/pip/__init__.py", line 74, in <module> from pip.vcs import git, mercurial, subversion, bazaar # noqa File "/usr/lib/python2.7/dist-packages/pip/vcs/mercurial.py", line 9, in <module> from pip.download import path_to_url File "/usr/lib/python2.7/dist-packages/pip/download.py", line 25, in <module> from requests.compat import IncompleteRead ImportError: cannot import name IncompleteRead