Error, on Ubuntu 12.04
$ sudo -H pip install gevent
Exception:
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/pip/basecommand.py", line 232, in main
status = self.run(options, args)
File "/usr/local/lib/python2.7/dist-packages/pip/commands/install.py", line 339, in run
requirement_set.prepare_files(finder)
File "/usr/local/lib/python2.7/dist-packages/pip/req/req_set.py", line 229, in prepare_files
req_to_install.check_if_exists()
File "/usr/local/lib/python2.7/dist-packages/pip/req/req_install.py", line 931, in check_if_exists
self.satisfied_by = pkg_resources.get_distribution(self.req)
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 461, in get_distribution
dist = get_provider(dist)
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 341, in get_provider
return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 870, in require
needed = self.resolve(parse_requirements(requirements))
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 740, in resolve
env = Environment(self.entries)
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 927, in __init__
self.scan(search_path)
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 957, in scan
self.add(dist)
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 973, in add
if self.can_add(dist) and dist.has_version():
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 2658, in has_version
self.version
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 2466, in version
for line in self._get_metadata(self.PKG_INFO):
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 2510, in _get_metadata
for line in self.get_metadata_lines(name):
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 1927, in get_metadata_lines
return yield_lines(self.get_metadata(name))
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pkg_resources/__init__.py", line 1921, in get_metadata
with open(self.path,'rU') as f:
IOError: [Errno 2] No such file or directory: '/usr/lib/python2.7/dist-packages/setuptools.egg-info'
This fixed it for me:
$ sudo apt-get install --reinstall python-setuptools