title: Receving an error when trying to use the pandas read_html function
body: <p>I'm really new to python and pandas so I could be making a simple mistake.</p>
  
  <p>I'm trying to run the code below:</p>
  
  <pre><code>import quandl
  import pandas as pd
  
  df3 = pd.read_html('https://simple.wikipedia.org/wiki/List_of_U.S._states')
  print(df3)
  </code></pre>
  
  <p>I have installed pandas as well quandl through pip.
  When I　run the code I get the following error:</p>
  
  <pre><code>Traceback (most recent call last):
  File "C:\Python27\FunwithQuandl.py", line 14, in &lt;module&gt;
  df3 = pd.read_html('https://simple.wikipedia.org /wiki/List_of_U.S._states')
  File "C:\Python27\lib\site-packages\pandas\io\html.py", line 874, in read_html
  parse_dates, tupleize_cols, thousands, attrs, encoding)
  File "C:\Python27\lib\site-packages\pandas\io\html.py", line 726, in _parse
  parser = _parser_dispatch(flav)
  File "C:\Python27\lib\site-packages\pandas\io\html.py", line 685, in _parser_dispatch
  raise ImportError("lxml not found, please install it")
  ImportError: lxml not found, please install it
  </code></pre>
  
  <p>I then tried installing lxml via command prompt and pip and I got a few errors:</p>
  
  <pre><code>Cannnot open include file: 'libxml/xpath.h': No such file or directory
  
  Could not find function xmlCheckVersion in library libxm12. Is libxml2 installed?
  
  error: command 'CL\\User\\...Microsoft\\Visual C++ for Python\\9.0\\VC\\Bin\\cl.exe' failed with exit status 2
  </code></pre>
  
  <p>I even tried suggestions on this from <a href="https://stackoverflow.com/questions/33785755/getting-could-not-find-function-xmlcheckversion-in-library-libxml2-is-libxml2">this thread</a>:</p>
  
  <p>such as </p>
  
  <blockquote>
    <p>"install lxml from lfd.uci.edu/~gohlke/pythonlibs/#lxml for your
    python version. It's a precompiled WHL with required
    modules/dependencies.</p>
    
    <p>The site lists several packages, when e.g. using Win32 Python 2.7, use
    lxml-3.6.1-cp27-cp27m-win32.whl."</p>
  </blockquote>
  
  <p>I have downloaded the whl file from the site suggested but I can't seem to install it. 
  I have tried using pip and typing out the name of the file but the file isn't being recognized via pip.</p>
  
  <p>I  am using Python 2.7 and Windows 7 professional</p>
  
  <p>Thanks for you help.</p>