[Bug #758665] cgitb.scanvars() fails because of an unititialized value variable. Patch from Robin Becker.
diff --git a/Lib/cgitb.py b/Lib/cgitb.py
index c65783f..33541fb 100644
--- a/Lib/cgitb.py
+++ b/Lib/cgitb.py
@@ -60,7 +60,7 @@
def scanvars(reader, frame, locals):
"""Scan one logical line of Python and look up values of variables used."""
import tokenize, keyword
- vars, lasttoken, parent, prefix = [], None, None, ''
+ vars, lasttoken, parent, prefix, value = [], None, None, '', __UNDEF__
for ttype, token, start, end, line in tokenize.generate_tokens(reader):
if ttype == tokenize.NEWLINE: break
if ttype == tokenize.NAME and token not in keyword.kwlist: