[AstroPy] problem with 'test the installation' of python

[Joe Philip Ninan]

Hi,
For the plot issue,
Try giving
%pylab
after starting the ipython session before the plot command.
It will basically load numpy and matplotlib to work interactively.

http://ipython.org/ipython-doc/stable/api/generated/IPython.core.magics.pylab.html?highlight=pylab#IPython.core.magics.pylab.PylabMagics.pylab

If you plan to adapt the codes to script later, it is better to do plots in
the straight forward way as follows

x=range(10)
import matplotlib.pyplot as plt
plt.plot(x,sin(x))
plt.show()

-cheers
joe


On 2 December 2013 17:10, foad hanassi-savari <
foadhanassi-savari at hotmail.co.uk> wrote:

> Hi there,
>
> I have installed ipython via anaconda and it seems to be working fine and
> I installed the packages as instructed on the website:
> http://python4astronomers.github.io/installation/python_install.html.
> I have installed the packages as instructed and am able to import astropy,
> aplpy, pyregion and pyparsing.
> The issue rises when trying to test the installation!  the magic cells in
> my version of the ipython (ipython(py2.7)) are written as %%python (I don't
> really understand the difference between these and the suggested test on
> the website). This is not a problem, however, %%ipython is not listed on my
> cell magic list (%lsmagic) but when I type %%ipython I don't get an error!
> print numpy.__version__, prints 1.7.1
> print scipy.__version__, prints 0.13.0
> and
> print matplotlib.__version__, gives me an error unless I import matplotlib
> (I don't know if that is a problem or not!)
>
> But the main issue is that I don't get a plot of sin wave, instead when I
> type (plot(x, sin(x)) I get an error saying that plot is not defined!
>
> Also, I am using windows.
>
> Can you please help me out here, I am planning to study astrophysics and I
> really need/want to be good at programming.
>
> Thank you,
>
>
> _______________________________________________
> AstroPy mailing list
> AstroPy at scipy.org
> http://mail.scipy.org/mailman/listinfo/astropy
>
>


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Joe Philip Ninan    http://sites.google.com/site/jpninan/
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