Steven D'Aprano added the comment: __builtins__ is a private implementation detail in CPython. There is no guarantees made about whether it exists or not. E.g. it doesn't exist in Jython.
steve@orac:~/python$ jython Jython 2.5.1+ (Release_2_5_1, Aug 4 2010, 07:18:19) [OpenJDK Server VM (Sun Microsystems Inc.)] on java1.6.0_31 Type "help", "copyright", "credits" or "license" for more information. >>> __builtins__ Traceback (most recent call last): File "<stdin>", line 1, in <module> NameError: name '__builtins__' is not defined You should use `__builtin__` in Python 2 and `builtins` in Python 3. *Anything* you do to `__builtins__` with an S is implementation-dependent. I don't think it is a bug that CPython behaves differently regarding __builtins__ depending on whether IDLE is running or not. ---------- nosy: +steven.daprano _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25564> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
