[Tutor] I think I'm getting ahead of myself

Daniel Yoo dyoo@hkn.EECS.Berkeley.EDU
Thu, 20 Jul 2000 17:00:32 -0700 (PDT)

On Thu, 20 Jul 2000, Steven Gilmore wrote:

> >>> import sys
> >>>sys.path.append("d:\python\pyscript")

Be careful of those backslashes --- they signal a 'control' or 'escape'
character in Python and other computer languages.  As a quick answer, try:


instead.  (The 'r' in front of the quotes means 'raw' --- it tells Python
to treat backslashes as literal backslashes.)  Of course, this is
completely unrelated to the immediate problem, which is modules and
functions.  *grin*

> >>> import test
> >>> countdown(3)
> Traceback (innermost last):
>   File "<pyshell#4>", line 1, in ?
>     countdown(3)
> NameError: countdown
> what's the deal?

Ok, the real problem is that you need to specify the module, as well as
the name of the function.  Since the countdown function is located in your
'test' module, you need to execute it as:


This is because importing a module doesn't make its functions directly
available --- you still have to give the name of the module in front.

If this is awkward, there is a way to get around this by using the
"from/import" syntax:

  from test import countdown  # just get countdown


  from test import *    # grab every function out of test

If you do this, then you can just say


and it should work.