Traceback (most recent call last):


 "/home/me/anaconda3/lib/python3.7/site-packages/sympy/core/basic.py", line 22, in as_Basic

return _sympify(expr)


 "/home/me/anaconda3/lib/python3.7/site-packages/sympy/core/sympify.py", line 418, in _sympify

return sympify(a, strict=True)


 "/home/me/anaconda3/lib/python3.7/site-packages/sympy/core/sympify.py", line 286, in sympify

raise SympifyError(a)
sympy.core.sympify.SympifyError: SympifyError: None

Traceback (most recent call last):

 "/root/Downloads/w3af/w3af/core/ui/gui/main.py", line 547, in _scan_director
func()

 "/root/Downloads/w3af/w3af/core/ui/gui/main.py", line 646, in _scan_start
self.set_tabs(True)

 "/root/Downloads/w3af/w3af/core/ui/gui/main.py", line 793, in set_tabs
self._set_tab(sensit, _("Results"), scanrun.ScanRunBody)

 "/root/Downloads/w3af/w3af/core/ui/gui/main.py", line 799, in _set_tab
newone = realWidget(self.w3af)

 "/root/Downloads/w3af/w3af/core/ui/gui/scanrun.py", line 675, in __init__
kbbrowser = KBBrowser(w3af)

 "/root/Downloads/w3af/w3af/core/ui/gui/scanrun.py", line 246, in __init__
description = self.get_notebook_description()

 "/root/Downloads/w3af/w3af/core/ui/gui/scanrun.py", line 262, in get_notebook_description
self.description = webkit.WebView()AttributeError: 'module' object has no attribute 'WebView'