pip won't ignore system-installed files

[jason.gors.work at gmail.com]

if you use a newer version of pip i think this should work.


On Tuesday, October 22, 2013 9:11:40 AM UTC-4, Neal Becker wrote:
> IIUC, it is perfectly legitimate to do install into --user to override system-
> 
> wide installed modules.  Thus, I should be able to do:
> 
> 
> 
> pip install --user --up blah
> 
> 
> 
> even though there is already a package blah in 
> 
> /usr/lib/pythonxxx/site_packages/...
> 
> 
> 
> But even with -I (ignore installed) switch, pip fails:
> 
> 
> 
> pip install --user --up -I matplotlib
> 
> ...
> 
>  Installing collected packages: matplotlib, numpy, python-dateutil, tornado, 
> 
> pyparsing, nose, six
> 
>   Found existing installation: matplotlib 1.2.0
> 
>     Uninstalling matplotlib:
> 
> Exception:
> 
> Traceback (most recent call last):
> 
>   File "/usr/lib/python2.7/site-packages/pip-1.2.1-
> 
> py2.7.egg/pip/basecommand.py", line 107, in main
> 
>     status = self.run(options, args)
> 
>   File "/usr/lib/python2.7/site-packages/pip-1.2.1-
> 
> py2.7.egg/pip/commands/install.py", line 261, in run
> 
>     requirement_set.install(install_options, global_options)
> 
>   File "/usr/lib/python2.7/site-packages/pip-1.2.1-py2.7.egg/pip/req.py", line 
> 
> 1162, in install
> 
>     requirement.uninstall(auto_confirm=True)
> 
>   File "/usr/lib/python2.7/site-packages/pip-1.2.1-py2.7.egg/pip/req.py", line 
> 
> 495, in uninstall
> 
>     paths_to_remove.remove(auto_confirm)
> 
>   File "/usr/lib/python2.7/site-packages/pip-1.2.1-py2.7.egg/pip/req.py", line 
> 
> 1492, in remove
> 
>     renames(path, new_path)
> 
>   File "/usr/lib/python2.7/site-packages/pip-1.2.1-py2.7.egg/pip/util.py", line 
> 
> 273, in renames
> 
>     shutil.move(old, new)
> 
>   File "/usr/lib64/python2.7/shutil.py", line 302, in move
> 
>     os.unlink(src)
> 
> OSError: [Errno 13] Permission denied: '/usr/lib64/python2.7/site-
> 
> packages/matplotlib-1.2.0-py2.7.egg-info'
> 
> 
> 
> Can we please fix this?