On Windows, I'd strongly recommend just installing the pre-compiled
binaries for these sort've things, unless you're experienced with compiling
software / making this sort've thing work on Windows ..

So, install something like
http://www.stickpeople.com/projects/python/win-psycopg/ and then, make sure
your virtualenv is configured to use system-site-packages. (if you are
using the latest virtualenv, you would need to maybe re-create the
virtualenv with "virtualenv --system-site-packages ." .. ) - just google
virtualenv system-site-packages if that does not fully make sense :-)

It's probably "better" to use pip and install it inside your virtualenv,
but on Windows, I could never figure that out :-), and installing the .exe
files and using --system-site-packages seems to work fine for most things
.. it should be fairly rare that you require two different versions of
something like psycopg2 for different projects, so it should not be
problematic to have it installed system-wide ..

All the best,
Sanjay




On Sun, Apr 14, 2013 at 10:17 PM, Serdar Dalgic <s...@serdardalgic.org> wrote:

> On Sun, Apr 14, 2013 at 5:45 PM, Mustafa Tulu <mustafat...@gmail.com>
> wrote:
> > Hi All,
>
> Hi;
>
> >
> > When I try to install the package into my virtualenv in pycharm, it
> tries to
> > compile the source into binaries, it fails at linking stage, giving
> errors
> > like:
> >  Creating library build\temp.win32-2.7\Release\psycopg\_psycopg.lib and
> > object build\temp.win32-2.7\Release\psycopg\_psycopg.exp
> >     pqpath.obj : error LNK2019: unresolved external symbol _PQclear
> > referenced in function _pq_raise
> >     connection_int.obj : error LNK2001: unresolved external symbol
> _PQclear
> >     cursor_type.obj : error LNK2001: unresolved external symbol _PQclear
> >     error_type.obj : error LNK2001: unresolved external symbol _PQclear
> >     pqpath.obj : error LNK2019: unresolved external symbol
> _PQerrorMessage
> > referenced in function _pq_raise
> >
>
> This problem is not django-specific.
>
> Make sure you have python-dev and libpq-dev packages installed on your
> environment. After that, try "pip install psycopg2"
>
> --
> - Serdar Dalgıç <s...@serdardalgic.org>
> FLOSS Developer, Life & Nature Hacker
> twitter: https://twitter.com/serdaroncode
>
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