# The theme to use for HTML and HTML Help pages. See the documentation for
# a list of builtin themes.
-# html_theme = 'default'
-import sphinx_rtd_theme
-html_theme = "sphinx_rtd_theme"
-html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
+try:
+ import sphinx_rtd_theme
+ html_theme = "sphinx_rtd_theme"
+ html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
+except:
+ html_theme = 'default'
# Theme options are theme-specific and customize the look and feel of a theme
# further. For a list of options available for each theme, see the