More than one python in a linux

**David M. Cooke** · Jul 18 '05, 07:38 AM

Re: More than one python in a linux

At some point, Zunbeltz Izaola <zunbeltz@wm.lc .ehu.es.XXX> wrote:
[color=blue]
> Hi,
>
> I've build and installed python 2.2 and python2.3 in a linux box.
> Now i want to install some packages (Numeric, wxPython and
> scipy). I've install Numeric and wxPython for python2.3 without
> problem (python2.3 setup.py install ... and so on). But when I try
>
> python2.2 setup.py install
>
> I get the following error (for wxpython)
>
> running build_py
> copying wxPython/__version__.py -> build/lib.linux-i686-2.2/wxPython
> running build_ext
> error: invalid Python installation: unable to open
> /usr/lib/python2.2/config/Makefile (No such file or directory)[/color]

You probably don't have the development package for python2.2
installed (python2.2-dev or python2.2-devel or something).

--
|>|\/|<
/--------------------------------------------------------------------------\
|David M. Cooke
|cookedm(at)phy sics(dot)mcmast er(dot)ca

**Zunbeltz Izaola** · Jul 18 '05, 07:39 AM

Re: More than one python in a linux

cookedm+news@ph ysics.mcmaster. ca (David M. Cooke) writes:

[color=blue]
> You probably don't have the development package for python2.2
> installed (python2.2-dev or python2.2-devel or something).
>[/color]

You are right! I've installed it and it semms that now all goes well.
Thanks.

Zunbeltz
[color=blue]
> --
> |>|\/|<
> /--------------------------------------------------------------------------\
> |David M. Cooke
> |cookedm(at)phy sics(dot)mcmast er(dot)ca[/color]

--
Remove XXX from email: zunbeltz@wm.lc. ehu.esXXX

**Paul Boddie** · Jul 18 '05, 07:39 AM

Re: More than one python in a linux

Zunbeltz Izaola <zunbeltz@wm.lc .ehu.es.XXX> wrote in message news:<m165fdbp4 t.fsf@llcpxqy.l c.ehu.es>...[color=blue]
> Hi,
>
> I've build and installed python 2.2 and python2.3 in a linux box.[/color]

I think we need to know...

* How you built those Python releases: compiled from source, used
a source RPM or other source package, used a binary RPM or other
binary package (which really isn't building, however).

* What kind of Linux distribution you used and whether it had
Python installed already.
[color=blue]
> Now i want to install some packages (Numeric, wxPython and
> scipy). I've install Numeric and wxPython for python2.3 without
> problem (python2.3 setup.py install ... and so on). But when I try
>
> python2.2 setup.py install[/color]

[...]
[color=blue]
> error: invalid Python installation: unable to open /usr/lib/python2.2/config/Makefile (No such file or directory)[/color]

This suggests that you don't have the development stuff installed for
that particular Python 2.2 installation. I note that /usr is the
prefix, meaning that either...

* You built Python from source and specified /usr as the prefix
instead of using the default /usr/local as prefix. This is
unlikely as the Makefile would probably be where setup.py is
looking.

* You installed a package which put the installation in /usr
(eg. /usr/bin/python2.2) but which didn't include the
development stuff. That might mean that you need to find the
corresponding "devel" package.

* You already have /usr/bin/python2.2 installed as part of the
Linux distribution and it is this program that is being run
when you attempt to install things using setup.py, despite
the possible existence of a Python 2.2 installation in
/usr/local. In this case, verify using "which python2.2" the
actual program being run and adjust your PATH environment
variable to use your own Python 2.2 installation; for example:

PATH=/usr/local:$PATH python2.2 setup.py install

I hope this helps you track down the problem. Multiple Python
installations are easy enough to manage and use, especially if you
remember to use python2.2 and python2.3 (as you've done) to control
the version you want to use.

Paul

More than one python in a linux

More than one python in a linux

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