stressing problem with Python < 3.3.3 / 2.7.6 and Mac OS 10.9 Mavericks

Wolfgang Maier wolfgang.maier at
Tue Oct 14 21:52:39 CEST 2014


I'm not a regular MacPython user, but today I had to build Mac wheels 
for different versions of Python. To test the wheel files I set up a 
fresh Mac OS 10.9 Mavericks and and installed Python 3.2, 3.3, 3.4 from 
the download page on it. Then I struggled for the rest of the 
afternoon to try to figure out why Python 3.2 crashed when I used my 
package in interactive mode until I finally realized that it's not the 
package but Python that's responsible.

Turns out that I had run into which 
probably every MacPython user here is so familiar with that the download 
page doesn't even mention it ? ;)

Seriously, I think the official download page for a OS shouldn't offer 
me a version that will not work well with the latest version of that OS 
without a warning. Why not add such a warning (like: versions below will 
crash in interactive mode on Mac OS 10.9) in the list of downloads at between Python 2.7.6 (the 
first version with the issue fixed) and Python 3.2.5 (the last affected 


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