* Robert P. J. Day:
still working my way through "dive into python 3" and i've already
been asked to give a newbie tutorial on it -- blind leading the blind,
as it were. that should be hilarious.
i'll be using python 3 and it occurred to me that it would be
educational (at least for me :-) to display what an initial p3 shell
session looks like before doing any imports whatsoever. as in, i run
"python3" on my fedora box and, at the ">>>" prompt, i want to show
what's already there for the new user.
from what little i know so far, i'd start with:
__name__
'__main__'
to display the name of the current scope(?). backing up a bit, i
could run either of:
dir()
['__builtins__', '__doc__', '__name__', '__package__']
globals()
{'__builtins__': <module 'builtins' (built-in)>, '__name__':
'__main__', '__doc__': None, '__package__': None}
then i might go a bit further to examine some of *those* objects. i
admit it might seem a bit dry, but i think it would be handy to have a
handle on what a clean shell session looks like before starting to
import things, then seeing how that importing changes the session
before getting down to actual programming.
what other useful commands might i run immediately after starting a
session whose output would be informative? i can certainly poke at
some of those objects to see them in more detail. i'm just curious
what others might recommend. thanks.
That depends on what you mean by "newbie".
If it's someone who knows a little bit of programming but is new to Python, then
'help' would definitely be about the first thing I'd show her.
But if it's someone who doesn't even know anything about programming, then I'd
recommend (blatant plug) <url: http://tinyurl.com/programmingbookP3> -- its
first two chapters are constructed around complete, concrete examples. However,
you would have to adapt just the *sense* of the first chapter, which is only
about tool usage, to *nix, since it's written for Windows. I'd not dive into
'help' for the someone who doesn't know anything because it gets technical
pretty fast, and because she will get back to that on her own when it's time.
Whatever you do, and whatever the background of the newbie, do introduce turtle
graphics right away.
The ch 2 of the above reference contains some t.g. examples that you might use
(initial silly figures, graphs of functions, recursive figures). It doesn't go
into the turtle module objects. But if objects are what you want to show right
away, then I think the turtle module is great also for that, because those
objects are simple and can be easily explored.
Cheers & hth.,
- Alf
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