title: No module named vaderSentiment.vaderSentiment
body: <p>I already install everything from nltk and when I run my program, this appears</p>
  
  <pre><code>from vaderSentiment.vaderSentiment import SentimentIntensityAnalyzer
  </code></pre>
  
  <blockquote>
    <p>ImportError: No module named vaderSentiment.vaderSentiment</p>
  </blockquote>
  
  <p>I read I needed to download it and write pip install vaderSentiment, so I made it, but this appears</p>
  
  <pre>
  pip install vaderSentiment 
  Collecting vaderSentiment
    Downloading vaderSentiment-2.5-py2.py3-none-any.whl (102kB)
      100% |████████████████████████████████| 112kB 97kB/s 
  Installing collected packages: vaderSentiment
  Exception:
  Traceback (most recent call last):
    File "/home/kyrah/.local/lib/python2.7/site-packages/pip/basecommand.py", line 215, in main
      status = self.run(options, args)
    File "/home/kyrah/.local/lib/python2.7/site-packages/pip/commands/install.py", line 342, in run
      prefix=options.prefix_path,
    File "/home/kyrah/.local/lib/python2.7/site-packages/pip/req/req_set.py", line 784, in install
      **kwargs
    File "/home/kyrah/.local/lib/python2.7/site-packages/pip/req/req_install.py", line 851, in install
      self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
    File "/home/kyrah/.local/lib/python2.7/site-packages/pip/req/req_install.py", line 1064, in move_wheel_files
      isolated=self.isolated,
    File "/home/kyrah/.local/lib/python2.7/site-packages/pip/wheel.py", line 345, in move_wheel_files
      clobber(source, lib_dir, True)
    File "/home/kyrah/.local/lib/python2.7/site-packages/pip/wheel.py", line 316, in clobber
      ensure_dir(destdir)
    File "/home/kyrah/.local/lib/python2.7/site-packages/pip/utils/__init__.py", line 83, in ensure_dir
      os.makedirs(path)
    File "/usr/lib/python2.7/os.py", line 157, in makedirs
      mkdir(name, mode)
  OSError: [Errno 13] Permiso denegado: '/usr/local/lib/python2.7/dist-packages/vaderSentiment-2.5.dist-info'*
  </pre>
  
  <p>I looked for [Errno 13] Permiso denegado and I found something about write  </p>
  
  <pre><code>sudo pip install -r requirements.txt
  </code></pre>
  
  <p>, I did it and this happend</p>
  
  <p><em>The directory '/home/kyrah/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
  The directory '/home/kyrah/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
  Could not open requirements file: [Errno 2] No existe el archivo o el directorio: 'requirements.txt'</em></p>
  
  <p>Right now I don't know what to do</p>