Re: [Matplotlib-users] Installation problem "cannot find -ltk"=?utf-8?q?=09Suse?= 9.1

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Todd,

Thanks, your suggestion prodded me in the right direction, a good old=20
permission issue.  It's all working now.  Am pasting my notes below.

Jason

I tried the remedies suggested here:
http://lists.debian.org/debian-user/1998/09/msg00113.html
(xhost +localhost) and here:
http://lists.debian.org/debian-user/1998/08/msg03179.html
(use ssh which takes care of the $DISPLAY enviro variable)

In the second I no longer got the two lines at the top of the build output:
Xlib: connection to ":0.0" refused by server
Xlib: Invalid MIT-MAGIC-COOKIE-1 key

But everything else went exactly the same.  So then I decided to:

# chmod -R a+rwx *

within the untarred Matplotlib installation root (/matplotlib-0.72.1), to o=
pen=20
up the permissions.  After again setting BUILD_GTKAGG=3D0 in setup.py I the=
n=20
ran:

> python setup.py build

as my normal (non-root) user and it went perfectly.  Since my python=20
installation is in /usr/lib/python which requires root privileges to create=
=20
directories etc, I then su'd and from the same directory:

# python setup.py install

and it transferred the files etc. as desired to the python installation.  I=
=20
then had to change /usr/share/matplotlib/.matplotlibrc:

\snip
#### CONFIGURATION BEGINS HERE
backend      : GTKAgg    # the default backend
numerix      : Numeric   # Numeric or numarray
interactive  : False     # see=20
http://matplotlib.sourceforge.net/interactive.html
toolbar      : toolbar2   # None | classic | toolbar2
timezone     : UTC        # a pytz timezone string, eg US/Central or=20
Europe/Paris
\snip

so that the backend was set to 'TKAgg' and interactive set to 'True'. It=20
didn't like 'TKAgg', it needs 'TkAgg'.  I confirmed operation with:

python>>> from pylab import *
python>>> plot([1,2,3])
python>>> [<matplotlib.lines.Line2D instance at 0x40479a2c>]

and the Tk window comes up and is zoomable etc.  Looks good, looks like the=
=20
effort might be worth it!=20

On Saturday 19 March 2005 00:23, Todd Miller wrote:
> On Fri, 2005-03-18 at 05:02, Jason Hoogland wrote:
> > Second question: I can't install Matplotlib and maybe someone will have
> > seen the symptom before or have some bright ideas to help me figure it
> > out.  I'm running SuSE 9.1, python 2.3.3, and seem to have Tcl/Tk/Tkint=
er
> > installed OK.
> >
> > I set BUILD_GTKAGG =3D 0 in setup.py.  In an xterm as root I ran this a=
nd
> > the output follows
> >
> > \start
> >
> > # python setup.py build
> > Xlib: connection to ":0.0" refused by server
> > Xlib: Invalid MIT-MAGIC-COOKIE-1 key
> > Using default library and include directories for Tcl and Tk because a
> > Tk window failed to open.  You may need to define DISPLAY for Tk to work
> > so that setup can determine where your libraries are located.
> > running build
> > running build_py
> > creating build
> > creating build/lib.linux-i686-2.3
> > copying lib/pylab.py -> build/lib.linux-i686-2.3
> > creating build/lib.linux-i686-2.3/matplotlib
> > copying lib/matplotlib/patches.py -> build/lib.linux-i686-2.3/matplotlib
> > copying lib/matplotlib/_image.py -> build/lib.linux-i686-2.3/matplotlib
> >
> > ... etc copying a bunch of files into the build directory
>
> [mostly snipped]
>
> > g++ -pthread -shared build/temp.linux-i686-2.3/src/_tkagg.o
> > -L/usr/local/lib -L/usr/local/lib -L/usr/local/lib -L/usr/lib
> > -L/usr/local/lib -L/usr/lib -ltk -ltcl -lpng -lz -lstdc++ -lm -lfreetype
> > -lz -lstdc++ -lm -o
> > build/lib.linux-i686-2.3/matplotlib/backends/_tkagg.so
> > /linux1/usr/bin/../lib/gcc-lib/i586-suse-linux/3.3.3/../../../../i586-s=
us
> >e-linux/bin/ld: cannot find -ltk
> > collect2: ld returned 1 exit status
> > error: command 'g++' failed with exit status 1
> >
> > \end
> >
> > I'm figuring the "Tk window open failed" bit at the start is just becau=
se
> > it seems to take a few seconds for Tk windows to appear on my system, a=
nd
> > its not coded to wait.
>
> That "Tk window open failed" problem looks to me like it may be *the*
> problem.   matplotlib opens a Tk window to help figure out where Tk is;
> the fallback isn't working.  In your case I think the Tk window failed
> because "root" is trying to open a window on a display owned by your
> non-priviledged account.   Having the system say "no" to root about
> anything is really counter intuitive to me,  but I've experienced it
> myself and it's discussed some here:
>
> http://lists.debian.org/debian-user/1998/09/msg00113.html
>
> The article suggests that if you do
>
> % xhost +localhost
>
> in your non-priviledged account before trying to build as root,  X will
> allow the Tk window open.
>
> > So assuming that's not fatal, it seems the problem boils
> > down to "cannot find -ltk".  I have searched for a few hours on google =
to
> > no avail.  The only things I can suspect are maybe:
> >
> > - I might be missing some installed components for development stuff in
> > Tcl or g++?
>
> Maybe.  On my RHEL3 system,  I have tk-devel-8.3.5-92.2 installed.
>
> Hope this helps,
> Todd

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