Terry J. Reedy <tjre...@udel.edu> added the comment: Substituting foo = tuple() TypeError: can only concatenate list (not "tuple") to list
class Crasher(tuple): pass foo = Crasher() a = [1] + foo b=a[0] print (type(a), len(a), type(b), len(type(b)), type(type(b))) <class 'tuple'> 1 [] 1 <class 'list'> as before, so namedtuple is not, in particular, the culprit. Other two Crasher versions do the same. I also get a delayed pythonw error message after the print that does not cause the shell to restart. This may partly be an IDLE artifact. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue8847> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
