Command python setup.py egg_info failed with error code 1
Exception information:
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/pip/basecommand.py", line 126, in main
self.run(options, args)
File "/usr/lib/python2.7/site-packages/pip/commands/install.py", line 223, in run
requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
File "/usr/lib/python2.7/site-packages/pip/req.py", line 986, in prepare_files
req_to_install.run_egg_info()
File "/usr/lib/python2.7/site-packages/pip/req.py", line 222, in run_egg_info
command_desc='python setup.py egg_info')
File "/usr/lib/python2.7/site-packages/pip/__init__.py", line 254, in call_subprocess
% (command_desc, proc.returncode))
InstallationError: Command python setup.py egg_info failed with error code 1
And in pip.log: