[Tutor] pychart and debian

Danny Yoo dyoo at hkn.eecs.berkeley.edu
Mon Sep 19 04:48:25 CEST 2005

> ok, got the package installed, but it seems to not be working, or the
> examples are messed up.
> here is the source
> from pychart import *
> theme.get_options()
> data = [["Jan", 10], ["Feb", 22], ["Mar", 30]]
> ar = area.T(x_coord = category_coord.T(data, 0),
>             y_range = (0, None),
>             x_axis = axis.X(label="Month"),
>             y_axis = axis.Y(label="Value"))
> ar.add_plot(bar_plot.T(data = data, label = "Something"))
> ar.draw()
> and here is what i get when i run it.
> from: can't read /var/mail/pychart

Ah!  You're running into an issue with your Unix environment, not Python.

Unix doesn't care about file names: without any hints, it'll think that
your program is a mere shell script.  The error message above means that
'/bin/sh' is trying to interpret your program.  That is, it's trying to
run the Unix 'from' command!


And the subsequent error messages are pretty much '/bin/sh' error

To avoid this problem, try:

    $ python categbar.py

Alternatively, make sure the first line in your Python program contains
the "magic" line:

    #!/usr/bin/env python

to tell the Unix (or Linux) kernel that the program you're running is
meant to be run through Python.

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