Joe and I had a discussion off-list. Here's the end-result, confirmed via both
internet search as well as local testing:
The error generated by the Python command:
{{{
> import PyQt4.Qwt5 as Qwt
File
"/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/PyQt4/Qwt5/__init__.py",
line 32, in <module>
from Qwt import *
RuntimeError: the sip module implements API v10.0 but the PyQt4.Qwt5.Qwt module
requires API v8.1
}}}
is the result of PyQwt being compiled using SIP API 8.1 (SIP version 4.13.3),
while the currently installed SIP API is 10.0 (SIP version 4.14.7). Depending
on what one is trying to do with SIP, the above might actually work; and SIP
provides a means to allow it to work by using a special import command (or, at
least that's my reading of the code).
I do not see this issue within MacPorts because the MacPorts maintainers been
diligent about updating SIP dependencies whenever SIP is updated. I had
thought MacPorts would catch SIP updates and force reinstallation of
dependencies (via a new binary or from source), but in my testing it does not
automatically do so. Hence, that task now falls back onto the maintainer of
SIP in MacPorts, who happens to be me; lucky me!) . - MLD
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