title: I cannot uninstall a package by pip (Python)
body: <p>When I run <strong>"pip list"</strong> on my computer that has MacOS Sierra 10.12.6, some packages are listed on the terminal: </p>
  
  <pre><code>IST01-12345:~ myMac$ sudo pip list
  altgraph (0.10.2)
  bdist-mpkg (0.5.0)
  bonjour-py (0.3)
  macholib (1.5.1)
  matplotlib (1.3.1)
  modulegraph (0.10.4)
  numpy (1.8.0rc1)
  pip (9.0.1)
  py2app (0.7.3)
  pyobjc-core (2.5.1)
  pyobjc-framework-Accounts (2.5.1)
  pyobjc-framework-AddressBook (2.5.1)
  pyobjc-framework-AppleScriptKit (2.5.1)
  pyobjc-framework-AppleScriptObjC (2.5.1)
  pyobjc-framework-Automator (2.5.1)
  pyobjc-framework-CFNetwork (2.5.1)
  pyobjc-framework-Cocoa (2.5.1)
  pyobjc-framework-Collaboration (2.5.1)
  pyobjc-framework-CoreData (2.5.1)
  pyobjc-framework-CoreLocation (2.5.1)
  pyobjc-framework-CoreText (2.5.1)
  pyobjc-framework-DictionaryServices (2.5.1)
  pyobjc-framework-EventKit (2.5.1)
  pyobjc-framework-ExceptionHandling (2.5.1)
  pyobjc-framework-FSEvents (2.5.1)
  pyobjc-framework-InputMethodKit (2.5.1)
  pyobjc-framework-InstallerPlugins (2.5.1)
  pyobjc-framework-InstantMessage (2.5.1)
  pyobjc-framework-LatentSemanticMapping (2.5.1)
  pyobjc-framework-LaunchServices (2.5.1)
  pyobjc-framework-Message (2.5.1)
  pyobjc-framework-OpenDirectory (2.5.1)
  pyobjc-framework-PreferencePanes (2.5.1)
  pyobjc-framework-PubSub (2.5.1)
  pyobjc-framework-QTKit (2.5.1)
  pyobjc-framework-Quartz (2.5.1)
  pyobjc-framework-ScreenSaver (2.5.1)
  pyobjc-framework-ScriptingBridge (2.5.1)
  pyobjc-framework-SearchKit (2.5.1)
  pyobjc-framework-ServiceManagement (2.5.1)
  pyobjc-framework-Social (2.5.1)
  pyobjc-framework-SyncServices (2.5.1)
  pyobjc-framework-SystemConfiguration (2.5.1)
  pyobjc-framework-WebKit (2.5.1)
  pyOpenSSL (0.13.1)
  pyparsing (2.0.1)
  python-dateutil (1.5)
  pytz (2013.7)
  scipy (0.13.0b1)
  setuptools (18.5)
  six (1.4.1)
  virtualenv (15.1.0)
  xattr (0.6.4)
  zope.interface (4.1.1)
  </code></pre>
  
  <p>However, when I uninstall one (<strong>altgraph</strong>) of these packages, I get an error such as below:</p>
  
  <pre><code>Exception:
  Traceback (most recent call last):
    File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/basecommand.py", line 215, in main
      status = self.run(options, args)
    File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/commands/uninstall.py", line 76, in run
      requirement_set.uninstall(auto_confirm=options.yes)
    File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_set.py", line 346, in uninstall
      req.uninstall(auto_confirm=auto_confirm)
    File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_install.py", line 754, in uninstall
      paths_to_remove.remove(auto_confirm)
    File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_uninstall.py", line 115, in remove
      renames(path, new_path)
    File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/utils/__init__.py", line 267, in renames
      shutil.move(old, new)
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 299, in move
      copytree(src, real_dst, symlinks=True)
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 208, in copytree
      raise Error, errors
  Error: [('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/__init__.py', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/__init__.py', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/__init__.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/__init__.pyc', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/__init__.pyc', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/__init__.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/Dot.py', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/Dot.py', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/Dot.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/Dot.pyc', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/Dot.pyc', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/Dot.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/Graph.py', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/Graph.py', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/Graph.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/Graph.pyc', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/Graph.pyc', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/Graph.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphAlgo.py', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphAlgo.py', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphAlgo.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphAlgo.pyc', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphAlgo.pyc', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphAlgo.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphStat.py', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphStat.py', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphStat.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphStat.pyc', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphStat.pyc', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphStat.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphUtil.py', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphUtil.py', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphUtil.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphUtil.pyc', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphUtil.pyc', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/GraphUtil.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/ObjectGraph.py', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/ObjectGraph.py', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/ObjectGraph.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/ObjectGraph.pyc', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/ObjectGraph.pyc', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph/ObjectGraph.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph', '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph', "[Errno 1] Operation not permitted: '/tmp/pip-BQys7K-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/altgraph'")]
  </code></pre>
  
  <p>I also checked some paths and versions:</p>
  
  <pre><code>IST01-12345:~ myMac$ which python &amp;&amp; python --version
  /usr/bin/python
  Python 2.7.10
  IST01-12345:~ myMac$ which pip &amp;&amp; pip --version
  /usr/local/bin/pip
  pip 9.0.1 from /Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg (python 2.7)
  IST01-12345:~ myMac$ which easy_install &amp;&amp; easy_install --version
  /usr/bin/easy_install
  setuptools 18.5 from /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (Python 2.7)
  IST01-12345:~ myMac$ which pytz &amp;&amp; pytz --version
  IST01-12345:~ myMac$ which scipy &amp;&amp; scipy --version
  IST01-12345:~ myMac$ which altgraph &amp;&amp; altgraph --version
  </code></pre>
  
  <p>Although "pytz", "scipy" and "altgraph" are shown in the list, I cannot find their paths and versions. What do you think? How can I uninstall them, or how can I remove these packages from this list? Does using python under /usr/bin instead of python /usr/local/bin occur this problem? </p>