Hello,
So, regarding the path that python uses to find modules, I read
the link that you sent. Suppose, I open IDLE and start an interactive
session. That would mean the input script location is wherever python is
installed, correct? I did add an environment variable PYTHONPATH which did
not even exist when I first installed Python. I figured I would want to
have a directory where I could store modules that might interest me. I
might want to expand that into a package style path later.
Now, if I was going to create an application to run on the web, I
guess those included modules would have to get compiled with the rest of the
code for it to work, right?
Bruce
-----Original Message-----
From: Chris Angelico
Sent: Saturday, July 09, 2011 10:10 PM
To: python-list@python.org
Subject: Re: Newbie help - Programming the Semantic Web with Python
On Sun, Jul 10, 2011 at 11:32 AM, Bruce Whealton <br...@whealton.info>
wrote:
problem with is this line:
def add(self, (sub, pred, obj)):
I think the problem is with the parentheses before the sub. I removed
those and that seemed to fix that error or make it go away. I don’t
remember how I figured that out, It should be on the Errata page for
sure.
Then it has a problem with this line:
print list(g.triples((None, None, None)))
If I was using python 3, it would require () around the thing that is
going to be printed, right? Maybe python 2.7 doesn’t like this line for
the same reason.
The issue there is with tuple unpacking. To match the older syntax,
don't touch the call, but change the definition thus:
def add(self, args):
(sub, pred, obj)=args
Or, of course, simply list the arguments directly, rather than in a
tuple; but that requires changing every call (if it's a small program
that may not be a problem).
You're right about needing parentheses around the print() call; in
Python 2 it's a statement, but in Python 3, print is a function like
any other.
Regarding the module search path, this may help:
http://docs.python.org/dev/tutorial/modules.html#the-module-search-path
Chris Angelico
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