theme fixed?

docs/source/conf.py

@@ -79,8 +79,6 @@ pygments_style = None
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-html_theme = 'alabaster'
-
 # 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
 # documentation.
@@ -207,9 +205,9 @@ html_static_path = ['_static']
 #
 # html_sidebars = {}
 #---sphinx-themes-----
-html_theme = 'neo_rtd_theme'
 try:
     import sphinx_theme
+    html_theme = 'neo_rtd_theme'
     html_theme_path = [sphinx_theme.get_html_theme_path()]
 except:
     pass
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