On Sat, Mar 31, 2012 at 11:06 PM, Leon Starr <leon_starr(at)modelint(dot)com> wrote:
> Greetings all, newbie here. I'm trying to use the latest release of psycopg2 with Python3 and having no success so far.
> I'm on Mac OS X Lion (Xcode installed) and I have both 2.7 and 3.2.2 Python installations with 3 set as my default Python
> and these are both macports installations.
> So if I fire up my 2.7 IDLE session and do: import psycopg2
> it appears to work okay, i.e. no errors. (And yes, I am sure it's the 2.7 session)
> But the same import in a 3.2.2 IDLE session tells me that no such module exists.
> Well, duh, of course, because psycopg2 is probably installed in the 2.7 site package
Yes: Py2 and Py3 installation are separate (FWIW, each 2.x and 3.x is separate)
> My two part question is 1) can I use psycopg2 with Python3? (The psycopg2 home site leads me to believe so)
> if so 2) How? Here's what I've tried so far:
> 2a) easy_install would like to install in the 2.7 site install directory, okay, but it's already there, so no thanks
> (should I try to force it into the 3.x site installation directory somehow?)
Yes: you should use easy_install provided with "Distribute" installed
on python3: on my system (ubuntu) it is available as the script
> 2b) I tried having easy_install load psycopg2 into a separate, empty directory which I put into my PYTHONPATH
> variable, just to see what would happen. Didn't work. (See traceback below)
Of course: it gets linked with the wrong libpython.
> 2c) Should I somehow adjust my package search path in 3.2.2 to look in the 2.7 package directory?
> What could possibly go wrong with that? ;)
:) It would go wrong 2b style.
> So, should I be doing a, b, c or none of the above? I eagerly await enlightenment and thank you for your time!
Either "easy_install3 psycopg2", if you find a way to get Distribute
for Python 3 on your system, or unpack the psycopg source tarball and
python3 setup.py build
sudo python3 setup.py install
You will need python-dev and libpq-dev packages installed, but if you
have installed psycopg on py2 via easy_install you should already have
them. Well, you may have py2-dev but not py3-dev... In case of error
check the missing .h at the beginning of the errors list and take a
look at the FAQ to see if they are helpful.
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