gnuplot-py-users Mailing List for Gnuplot.py

My previous installation problem is now solved. Hurray! But, now I have a=
 new problem. Trying to=20
actually plot in python brings up a string of errors. My code goes as suc=
h (as per the instructions in a=20
manual I was given):

from Gnuplot import Gnuplot, Data
graph =3D Gnuplot()
results =3D Data(xx, yy)
graph.plot(results)

The arrays xx and yy have been previously defined. It's the last line tha=
t brings up the errors, which are:

Traceback (most recent call last):
  File "<pyshell#3>", line 1, in -toplevel-
    graph.plot(results)
  File "/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/s=
ite-packages/Gnuplot/
_Gnuplot.py", line 274, in plot
    self.refresh()
  File "/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/s=
ite-packages/Gnuplot/
_Gnuplot.py", line 215, in refresh
    self(self.plotcmd + ' ' + string.join(plotcmds, ', '))
  File "/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/s=
ite-packages/Gnuplot/
_Gnuplot.py", line 199, in __call__
    self.gnuplot(s)
  File "/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/s=
ite-packages/Gnuplot/
gp_macosx.py", line 136, in __call__
    self.flush()
IOError: [Errno 32] Broken pipe


I have no idea how to fix this. Once again, any help is very much appreci=
ated.

Hannah

You don't need to be administrator,...but it helps.

Otherwise, you can instead install in your local directory. Make a
folder to install into. On my system, I created "/home/no228/python".
Then run install as follows:
"python setup.py install --prefix /home/no228/python"

Then, set the environment variable PYTHONPATH to include this new
location, so that python will be able to find these locally-installed
libraries.

On my system (bash):
"export PYTHONPATH=/home/no228/python/lib/python2.4/site-packages"

To test, type:
$ python
>>> from Gnuplot import *
(there shouldn't be any error messages)

Regards,
 Noel

On Mon, 2006-02-13 at 17:42 +0000, Hannah Singh wrote:
> OK, so I've downloaded and untar'd the gnuplot-py-1.7 file, and tried to install it, but I keep coming up 
> against errors. I suspect this is quite possibly due to my general incompetence, so some help/advice/
> pointers would be greatly appreciated.
> 
> In the readme file it says: 3. Install by changing to the directory and typing "python setup.py install".
> 
> I assumed this meant in terminal, so I went and did that, and got this error: 
> 
> creating /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/Gnuplot
> error: could not create '/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-
> packages/Gnuplot': Permission denied
> 
> Am I right in thinking that this means I haven't installed Gnuplot correctly? If so, what could I have done 
> wrong, as I simply followed the auto-install prompt.
> 
> Many thanks in advance,
> Hannah
> 
> 
> 
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> On Mon, 13 Feb 2006, Hannah Singh apparently wrote:=20
> > error: could not create=20
> > '/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site=
-=20
> > packages/Gnuplot': Permission denied=20
>=20
> It seems you lack the privileges to create this directory.
> Talk to your systems administrator?

Thanks. The problem is that it's my personal computer, and I'm set as the=
 admin, so I don't know why it=20
won't recognise me. I did change the access so that anyone could rwx, but=
 that didn't seem to do=20
anything. When I entered the "su" command and entered my password, it was=
 rejected. Do you know=20
what's going on?

Many thanks,
Hannah

On 2/13/06, Hannah Singh <han...@co...> wrote:
> OK, so I've downloaded and untar'd the gnuplot-py-1.7 file, and tried to =
install it, but I keep coming up
> against errors. I suspect this is quite possibly due to my general incomp=
etence, so some help/advice/
> pointers would be greatly appreciated.
>
> In the readme file it says: 3. Install by changing to the directory and t=
yping "python setup.py install".
>
> I assumed this meant in terminal, so I went and did that, and got this er=
ror:
>
> creating /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/=
site-packages/Gnuplot
> error: could not create '/Library/Frameworks/Python.framework/Versions/2.=
4/lib/python2.4/site-
> packages/Gnuplot': Permission denied
>
> Am I right in thinking that this means I haven't installed Gnuplot correc=
tly? If so, what could I have done
> wrong, as I simply followed the auto-install prompt.
>
> Many thanks in advance,
> Hannah
>
>
>
Alan is right, you don't have the necessary permissions.  If you are
an administrator on the computer you can simply use the "sudo" command
immediately before the install command like

sudo python setup.py install

It will ask for your password and then install it for you.  I didn't
have any issues when I installed it on Tiger.
Jeremy

On Mon, 13 Feb 2006, Hannah Singh apparently wrote: 
> error: could not create 
> '/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site- 
> packages/Gnuplot': Permission denied 

It seems you lack the privileges to create this directory.
Talk to your systems administrator?

fwiw,
Alan Isaac