Fix CallError when no traceback is active.

8 years ago · e042bfa954
parent 0b0e828c04
commit e042bfa954
1 changed files with 5 additions and 1 deletions
--- a/econtext/core.py
+++ b/econtext/core.py
@ -63,7 +63,11 @@ class CallError(ContextError):
    """Raised when .Call() fails"""
    def __init__(self, e):
        name = '%s.%s' % (type(e).__module__, type(e).__name__)
-        stack = ''.join(traceback.format_stack(sys.exc_info[2]))
+        tb = sys.exc_info()[2]
+        if tb:
+            stack = ''.join(traceback.format_tb(tb))
+        else:
+            stack = ''
        ContextError.__init__(self, 'Call failed: %s: %s\n%s', name, e, stack)