In article <775a9d45-25b5-4a16-9fe5-6217fd67f...@cagttraining.com>, Bill Felton <subscripti...@cagttraining.com> wrote: > I'm new to python, trying to learn it from a variety of resources, including > references posted recently to this list. > I'm going through /www.openbookproject.net/thinkCSpy/ and find it makes use > of gasp, which apparently is not compatible with 3.1. > I've also seen various resources indicate that one can install both Python > 2.7 and Python 3.1 -- but when I did this, I get no end of problems in the > 2.7 install. IDLE, in particular, fails rather spectacularly, even if I > launch it directly from the Python 2.7 directory in which it resides. > So, either I've been misled and should only try to have one or the other. OR > I'm missing some (probably simple) step that's mucking me up. > Help?
Yes, you can have multiple versions of Python installed on Mac OS X. In fact, Apple ships multiple versions of Python with OS X (2.6 and 2.6 with OS X 10.6, for example). Starting with Python 2.7, python.org offers two variants of OS X installers, one is 32-bit-only and works on all versions of OS X 10.3.9 through OS X 10.6, the other supports 64-bit execution and only works on 10.6 (as of 2.7.1). Unfortunately, there are some major interaction problems between Tkinter, Python's GUI toolkit which is used by IDLE, and the Tcl/Tk 8.5 supplied by Apple in OS X 10.6. I'm assuming you installed the 64-bit version. If so, until the problem is resolved in the next maintenance release of Python 2.7, I suggest you download and install the 32-bit-only version of Python 2.7.1 which does not have those problems. -- Ned Deily, n...@acm.org -- http://mail.python.org/mailman/listinfo/python-list
