title: Error in reading html to data frame in Python “html5lib not found”
body: <p>I've come accross the following error about html5lib when trying to read an html data frame.</p>
  
  <p>Here is the code:</p>
  
  <pre><code>!pip install html5lib
  !pip install lxml
  !pip install beautifulSoup4
  
  import html5lib
  import lxml
  from bs4 import BeautifulSoup
  
  table_list = pd.read_html("http://www.psmsl.org/data/obtaining/")
  </code></pre>
  
  <p>This is the error:</p>
  
  <pre><code>ImportError                               Traceback (most recent call last)
  &lt;ipython-input-68-e24654a0a301&gt; in &lt;module&gt;()
  ----&gt; 1 table_list = pd.read_html("http://www.psmsl.org/data/obtaining/")
  
  /home/sage/sage-8.0/local/lib/python2.7/site-packages/pandas/io/html.pyc in read_html(io, match, flavor, header, index_col, skiprows, attrs, parse_dates, tupleize_cols, thousands, encoding, decimal, converters, na_values, keep_default_na)
      913                   thousands=thousands, attrs=attrs, encoding=encoding,
      914                   decimal=decimal, converters=converters, na_values=na_values,
  --&gt; 915                   keep_default_na=keep_default_na)
  
  /home/sage/sage-8.0/local/lib/python2.7/site-packages/pandas/io/html.pyc in _parse(flavor, io, match, attrs, encoding, **kwargs)
      737     retained = None
      738     for flav in flavor:
  --&gt; 739         parser = _parser_dispatch(flav)
      740         p = parser(io, compiled_match, attrs, encoding)
      741 
  
  /home/sage/sage-8.0/local/lib/python2.7/site-packages/pandas/io/html.pyc in _parser_dispatch(flavor)
      680     if flavor in ('bs4', 'html5lib'):
      681         if not _HAS_HTML5LIB:
  --&gt; 682             raise ImportError("html5lib not found, please install it")
      683         if not _HAS_BS4:
      684             raise ImportError(
  
  ImportError: html5lib not found, please install it
  </code></pre>
  
  <p>Any help would be much appreciated.
  Thanks</p>