guard against linecache non-safety

2015-02-08 19:00:09 -08:00 · 2015-02-08 19:00:09 -08:00 · 75616c7b94
parent 6c2296283b
commit 75616c7b94
1 changed files with 8 additions and 5 deletions
--- a/boltons/tbutils.py
+++ b/boltons/tbutils.py
@ -112,11 +112,14 @@ class _DeferredLine(object):
    def __str__(self):
        if hasattr(self, '_line'):
            return self._line
-        linecache.checkcache(self.filename)
-        line = linecache.getline(self.filename,
-                                 self.lineno,
-                                 self.module_globals)
-        line = line.rstrip()
+        try:
+            linecache.checkcache(self.filename)
+            line = linecache.getline(self.filename,
+                                     self.lineno,
+                                     self.module_globals)
+            line = line.rstrip()
+        except KeyError:
+            line = ''
        self._line = line
        return line