On 01/13/2011 08:50 PM, Elwin Estle wrote:
> I am going through the book mentioned in the subject line, and I have found a
> couple of things that don't seem to work the way the author shows in the
> book. So, either I am doing something wrong, or what he is saying isn't
> quite right.
>
> I am using Python 2.7.1 on Mac OS X Leopard.
>
> The first thing is what he has for getting keyboard input (this is non-GUI
> stuff).
>
> Several times he does something like this:
>
> x = input('type something: ")
>
> But when I do the above and type something in, I get an error message saying
> that whatever I have typed in response to the above input() command, is an
> undefined name, unless I put it in quotes when I type it. I did a bit of
> poking around on the net and found out that input() actually appears to treat
> whatever is typed as an actual python command, i.e. as if it was being
> "eval"ed. If this is the case...why does he describe the usage this way in
> his book?
>
> On the other hand, raw_input() works just as exected, is it a typo? Seems
> like kind of a bad error to have in a Python book for beginners.
>
> And I just found another one that doesn't appear to work as he describes.
>
> print("some text here", end = ' ')
>
> He says this is supposed to control the end character on a print statement,
> allowing one to choose what the last character printed will be, other than a
> newline. But when I try it, I get a syntax error on the "=" after "end".
>
> So is this not a valid command format? Or is he using perhaps an earlier
> version of python? The copyright date on the book is 2010, and it is the 3rd
> Edition of the book.
>
>
>
He's not using an older version - you are! That book was written for
Python 3.x, you are using Python 2.x. As you have found, replace input
with raw_input, and for that print statement you can use:
print "Some text",
The comma suppresses the newline from being printed.
HTH,
~Corey
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