In article <mailman.5194.1389210743.18130.python-l...@python.org>, Roy Smith <r...@panix.com> wrote: >I'm working with ipython's pylab mode, which replaces the builtin sum() = >with the one from numpy: >[...] >Is there any way to recover a reference to the builtin sum()?
Sigh. I figured this out myself. What you want is __builtins__.sum ... BUT, not only does pylab overwrite sum(), it overwrites __builtins__ as well! Instead of a module, it's now a dict. You can still get at the builtin sum, but you need to do __builtins__["sum"] ======================================================== $ ipython Python 2.7.3 (default, Aug 1 2012, 05:14:39) Type "copyright", "credits" or "license" for more information. IPython 0.12.1 -- An enhanced Interactive Python. [...] In [1]: type(__builtins__) Out[1]: module ======================================================== $ ipython --pylab Python 2.7.3 (default, Aug 1 2012, 05:14:39) Type "copyright", "credits" or "license" for more information. IPython 0.12.1 -- An enhanced Interactive Python. [...] In [1]: type(__builtins__) Out[1]: dict ======================================================== I am slowly coming to the conclusion that the best way to deal with pylab is to not use it. Overwriting sum() with a different sum() I can accept, as a useful shortcut. Overwriting __builtins__ seems like wanton vandalism of the namespace. -- https://mail.python.org/mailman/listinfo/python-list
