title: "PermissionError: [Errno 13] Permission denied: '/usr/lib/python3.5/site-packages'" installing Django
body: <p>I cannot install basic Django packages on Ubuntu. I just deleted virtualenv and remade it. <code>pip3install</code> = <code>pip3 install -r requirements.txt</code></p>
  
  <pre><code>[mything] cchilders@cchilders-desktop:~/projects/mything (master) 
  $ cat requirements.txt 
  Django==1.10.1
  django-filter
  djangorestframework
  psycopg2
  twilio
  ipdb
  ipython
  
  
  [mything] cchilders@cchilders-desktop:~/projects/mything (master) 
  $ pip3install 
  Collecting Django==1.10.1 (from -r requirements.txt (line 1))
    Using cached Django-1.10.1-py2.py3-none-any.whl
  Collecting django-filter (from -r requirements.txt (line 2))
    Using cached django_filter-0.15.2-py2.py3-none-any.whl
  Requirement already satisfied (use --upgrade to upgrade): djangorestframework in /home/cchilders/.local/lib/python3.5/site-packages (from -r requirements.txt (line 3))
  Requirement already satisfied (use --upgrade to upgrade): psycopg2 in /usr/lib/python3/dist-packages (from -r requirements.txt (line 4))
  Collecting twilio (from -r requirements.txt (line 5))
  Requirement already satisfied (use --upgrade to upgrade): ipdb in /home/cchilders/.local/lib/python3.5/site-packages (from -r requirements.txt (line 6))
  Requirement already satisfied (use --upgrade to upgrade): ipython in /home/cchilders/.local/lib/python3.5/site-packages (from -r requirements.txt (line 7))
  Collecting pysocks; python_version == "3.5" (from twilio-&gt;-r requirements.txt (line 5))
  Requirement already satisfied (use --upgrade to upgrade): six in /home/cchilders/.local/lib/python3.5/site-packages (from twilio-&gt;-r requirements.txt (line 5))
  Collecting httplib2&gt;=0.7 (from twilio-&gt;-r requirements.txt (line 5))
  Requirement already satisfied (use --upgrade to upgrade): pytz in /usr/lib/python3/dist-packages (from twilio-&gt;-r requirements.txt (line 5))
  Requirement already satisfied (use --upgrade to upgrade): setuptools in /home/cchilders/.local/lib/python3.5/site-packages (from ipdb-&gt;-r requirements.txt (line 6))
  Requirement already satisfied (use --upgrade to upgrade): prompt-toolkit&lt;2.0.0,&gt;=1.0.3 in /home/cchilders/.local/lib/python3.5/site-packages (from ipython-&gt;-r requirements.txt (line 7))
  Requirement already satisfied (use --upgrade to upgrade): pickleshare in /home/cchilders/.local/lib/python3.5/site-packages (from ipython-&gt;-r requirements.txt (line 7))
  Requirement already satisfied (use --upgrade to upgrade): decorator in /home/cchilders/.local/lib/python3.5/site-packages (from ipython-&gt;-r requirements.txt (line 7))
  Requirement already satisfied (use --upgrade to upgrade): simplegeneric&gt;0.8 in /home/cchilders/.local/lib/python3.5/site-packages (from ipython-&gt;-r requirements.txt (line 7))
  Requirement already satisfied (use --upgrade to upgrade): traitlets&gt;=4.2 in /home/cchilders/.local/lib/python3.5/site-packages (from ipython-&gt;-r requirements.txt (line 7))
  Requirement already satisfied (use --upgrade to upgrade): pygments in /home/cchilders/.local/lib/python3.5/site-packages (from ipython-&gt;-r requirements.txt (line 7))
  Requirement already satisfied (use --upgrade to upgrade): pexpect; sys_platform != "win32" in /home/cchilders/.local/lib/python3.5/site-packages (from ipython-&gt;-r requirements.txt (line 7))
  Requirement already satisfied (use --upgrade to upgrade): wcwidth in /home/cchilders/.local/lib/python3.5/site-packages (from prompt-toolkit&lt;2.0.0,&gt;=1.0.3-&gt;ipython-&gt;-r requirements.txt (line 7))
  Requirement already satisfied (use --upgrade to upgrade): ipython-genutils in /home/cchilders/.local/lib/python3.5/site-packages (from traitlets&gt;=4.2-&gt;ipython-&gt;-r requirements.txt (line 7))
  Requirement already satisfied (use --upgrade to upgrade): ptyprocess&gt;=0.5 in /home/cchilders/.local/lib/python3.5/site-packages (from pexpect; sys_platform != "win32"-&gt;ipython-&gt;-r requirements.txt (line 7))
  Installing collected packages: Django, django-filter, pysocks, httplib2, twilio
  Exception:
  Traceback (most recent call last):
    File "/home/cchilders/.local/lib/python3.5/site-packages/pip/basecommand.py", line 215, in main
      status = self.run(options, args)
    File "/home/cchilders/.local/lib/python3.5/site-packages/pip/commands/install.py", line 317, in run
      prefix=options.prefix_path,
    File "/home/cchilders/.local/lib/python3.5/site-packages/pip/req/req_set.py", line 742, in install
      **kwargs
    File "/home/cchilders/.local/lib/python3.5/site-packages/pip/req/req_install.py", line 831, in install
      self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
    File "/home/cchilders/.local/lib/python3.5/site-packages/pip/req/req_install.py", line 1032, in move_wheel_files
      isolated=self.isolated,
    File "/home/cchilders/.local/lib/python3.5/site-packages/pip/wheel.py", line 346, in move_wheel_files
      clobber(source, lib_dir, True)
    File "/home/cchilders/.local/lib/python3.5/site-packages/pip/wheel.py", line 287, in clobber
      ensure_dir(dest)  # common for the 'include' path
    File "/home/cchilders/.local/lib/python3.5/site-packages/pip/utils/__init__.py", line 83, in ensure_dir
      os.makedirs(path)
    File "/usr/lib/python3.5/os.py", line 241, in makedirs
      mkdir(name, mode)
  PermissionError: [Errno 13] Permission denied: '/usr/lib/python3.5/site-packages'
  </code></pre>
  
  <p>The <code>mything</code> at the left is an active virtualenv (I just remade)</p>