old_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  import numpy as np
  
  
  ANALYTICS_TRACKING = """
  <!-- >>> Google Analytics -->
  <script>
      (function (i, s, o, g, r, a, m) {
          i['GoogleAnalyticsObject'] = r;
          i[r] = i[r] || function () {
              (i[r].q = i[r].q || []).push(arguments)
          }, i[r].l = 1 * new Date();
          a = s.createElement(o),
              m = s.getElementsByTagName(o)[0];
          a.async = 1;
          a.src = g;
          m.parentNode.insertBefore(a, m)
      })(window, document, 'script', '//www.google-analytics.com/analytics.js', 'ga');
  
      ga('create', 'UA-53791280-1', 'auto');
      ga('send', 'pageview');
  
  </script>
  <!-- <<< Google Analytics -->"""
  
  
  def html_format_matrix(M, precision=7):
      # Handling whitepoint tuples.
      if isinstance(M, tuple):
          M = np.array(M).reshape(1, 2)
  
      html = '<table class="matrix-table">'
      shape = M.shape
      for i in range(shape[0]):
          html += '<tr class="matrix-row">'
          for j in range(shape[1]):
              v = M[i][j]
              pretty = '{{: 0.{}f}}'.format(precision).format(
                  v) if precision is not None else v
              html += '<td class="matrix-column">{0}</td>'.format(pretty)
          html += '</tr>'
      html += '</table>'
      return html
  
  
  def html_select(name, items, selected):
      html = '<select name="{0}" onchange="this.form.submit()">'.format(name)
      for i, item in enumerate(items):
          if selected == i:
              html += '<option value="{0}" selected>{1}</option>'.format(
                  i, item)
          else:
              html += '<option value="{0}">{1}</option>'.format(i, item)
      html += '</select>'
      return html
  
new_contents: # -*- coding: utf-8 -*-
  
  import numpy as np
  
  
  ANALYTICS_TRACKING = """
  <!-- >>> Google Analytics -->
  <script>
      (function (i, s, o, g, r, a, m) {
          i['GoogleAnalyticsObject'] = r;
          i[r] = i[r] || function () {
              (i[r].q = i[r].q || []).push(arguments)
          }, i[r].l = 1 * new Date();
          a = s.createElement(o),
              m = s.getElementsByTagName(o)[0];
          a.async = 1;
          a.src = g;
          m.parentNode.insertBefore(a, m)
      })(window, document, 'script', '//www.google-analytics.com/analytics.js', 'ga');
  
      ga('create', 'UA-53791280-1', 'auto');
      ga('send', 'pageview');
  
  </script>
  <!-- <<< Google Analytics -->"""
  
  
  def html_format_matrix(M, precision=7):
      # Handling whitepoint tuples.
      if isinstance(M, tuple):
          M = np.array(M).reshape(1, 2)
  
      html = '<table class="matrix-table">'
      shape = M.shape
      for i in range(shape[0]):
          html += '<tr class="matrix-row">'
          for j in range(shape[1]):
              v = M[i][j]
              pretty = '{{: 0.{}f}}'.format(precision).format(
                  v) if precision is not None else v
              html += '<td class="matrix-column">{0}</td>'.format(pretty)
          html += '</tr>'
      html += '</table>'
      return html
  
  
  def html_select(name, items, selected):
      html = '<select name="{0}" onchange="this.form.submit()">'.format(name)
      for i, item in enumerate(items):
          if selected == i:
              html += '<option value="{0}" selected>{1}</option>'.format(
                  i, item)
          else:
              html += '<option value="{0}">{1}</option>'.format(i, item)
      html += '</select>'
      return html
  
subject: Remove interpreter shebangs.