Prevent creating a HTML link to file://?/
diff --git a/Lib/cgitb.py b/Lib/cgitb.py
index 735683e..8d979b8 100644
--- a/Lib/cgitb.py
+++ b/Lib/cgitb.py
@@ -112,8 +112,11 @@
frames = []
records = inspect.getinnerframes(etb, context)
for frame, file, lnum, func, lines, index in records:
- file = file and os.path.abspath(file) or '?'
- link = '<a href="file://%s">%s</a>' % (file, pydoc.html.escape(file))
+ if file:
+ file = os.path.abspath(file)
+ link = '<a href="file://%s">%s</a>' % (file, pydoc.html.escape(file))
+ else:
+ file = link = '?'
args, varargs, varkw, locals = inspect.getargvalues(frame)
call = ''
if func != '?':