I'm trying to find the Python library binaries associated with a given
python executable.
If I look at the help for sys.prefix and sys.exec_prefix
import sys; help(sys)
I see:
prefix -- prefix used to find the Python library
exec_prefix -- prefix used to find the machine-specific Python library
This text is somewhat ambiguous, but from the fact that exec_prefix
refers to the "machine-specific" Python library I'm led to guess that
prefix's "the Python library" refers to the *.py* files that form most
of the Python standard library, and "the machine-specific Python
library" perhaps refers to the library binaries such as libpython25.a.
However, neither of those interpretations seems to correspond to
reality. My guess is that these constants correspond to the --prefix
and --exec_prefix options to the configure script invocation that was
used to build Python.
What I'm really looking for, I think, is the directory corresponding
to the --libdir option to configure, but I don't see that in sys.
If I look at "configure --help," it claims the default libdir is
EPREFIX/lib, so I suppose I could look in sys.exec_prefix+'/lib', but
when I look at real installations I find only the shared libraries in
that location. For the static libraries, I have to look in
EPREFIX/lib/python$(version)/config/, and in fact there is a symlink
there to the shared libs.
So:
1. I think the documentation for sys and configure both need some
updating
2. I'd like to know if there's an officially correct procedure for
finding the library binaries associated with a Python executable.
Thanks in advance,
--
Dave Abrahams
Boost Consulting
www.boost-consulting.com
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