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Two beginner questions about paths and running programs in Python:   Message List  
Reply | Forward Message #323 of 364 |
Re: Two beginner questions about paths and running programs in Python:

so - once I get to the python command prompt, I should be able to open
.py files - right?

and am I doing that incorrectly or is that, from within python you
always have to import files? , or where can I get more information on
how to do this?

or is the point that you are making is that the book reference I
described from what you can see indicates that I should be calling the
files using the cmd.exe terminal, not the python terminal.

I'd like to be able to just run the files through the python terminal,
but you are right, I'm definitely confused as I grew up on windows not
dos and am fairly new to programming in general.

Once I get my environment straight, which I hope to do today - I can't
wait to learn this stuff.

there is no way I can move on learning this stuff because the next part
of the reference manual requires me to do the following:

"The interactive Python shell provides us with a convenient way to test
our functions. We can use the import statement to bring the functions
we have defined in a script into the interpreter session. To see how
this
works, assume the print_twice function is defined in a script
named chap03.py. We can now test it interactively by
importing it into our Python shell session:


>>> from chap03 import *
>>> print_twice('Spam')
Spam Spam
>>> print_twice(5)
5 5
>>> print_twice(3.14159)
3.14159 3.14159"

I can't import the functions because my environment is screwed up or I'm
doing something wrong.

Thanks!!!!!







--- In PhillyPug@yahoogroups.com, Erik Osheim <erik@...> wrote:
>
> So, I've never used IDLE or Windows. That said, I think you are
getting
> confused between the Python shell (which uses ">>>" as the prompt, and
> probably runs from within IDLE) and the OS shell (I think it's called
> cmd.exe or something).
>
> If you open a cmd.exe terminal (which looks like the old DOS
> command-line) you should be able to type python and see something like
> the following:
>
> Python 2.6.2 (r262:71600, Jun 1 2009, 12:31:36)
> [GCC 4.3.3] on linux2
> Type "help", "copyright", "credits" or "license" for more
information.
> >>>
>
> Only in your case, it will probably say something about Windows.
>
> Hope this helps.
>
> -- Erik
>





Tue Jun 9, 2009 9:03 pm

shawnmoffit
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Message #323 of 364 |
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I am running Python 2.6.2 on my windows 7 RC 1 x64 laptop and attempting to learn python as a beginner programmer on my own, but I'm having difficulty...
Shawn Moffit
shawnmoffit
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Jun 9, 2009
8:14 pm

So, I've never used IDLE or Windows. That said, I think you are getting confused between the Python shell (which uses ">>>" as the prompt, and probably runs...
Erik Osheim
erik@...
Send Email
Jun 9, 2009
8:24 pm

so - once I get to the python command prompt, I should be able to open .py files - right? and am I doing that incorrectly or is that, from within python you ...
Shawn Moffit
shawnmoffit
Offline Send Email
Jun 9, 2009
9:05 pm

... Well, from python, you can import python modules (to import foo.py, you'd write "import foo"). You can't run python scripts from within python--or at...
Erik Osheim
erik@...
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Jun 9, 2009
9:52 pm

... open ... the ... terminal, ... not ... I'm...
Shawn Moffit
shawnmoffit
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Jun 10, 2009
12:53 am

I know I'm not getting how the relative directory structure from python works... If I'm using python at c:\python26 and my module files are at...
Shawn Moffit
shawnmoffit
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Jun 10, 2009
3:43 am

... In general, if you type "import foo" then either there should be a "foo.py" installed in one of the "system locations" (on linux this might be...
Erik Osheim
erik@...
Send Email
Jun 10, 2009
4:01 am

If that still doesn't work then you likely need to add python to windows path. For Windows 7 right-click on the "Computer" (aka My Computer) and choose...
Dave Teske
teskepython
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Jun 9, 2009
9:20 pm

Thanks Dave - I made the changes and now it works from the command line as well. Very helpful....
Shawn Moffit
shawnmoffit
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Jun 10, 2009
2:12 am
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