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Date: Sat, 21 Sep 2013 08:11:26 +1000
Subject: Re: Print statement not printing as it suppose to
From: Tim Delaney <timothy.c.delaney@gmail.com>
To: Python-List <python-list@python.org>
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On 21 September 2013 07:57, Sam <anasdahany@gmail.com> wrote:

> hi everybody i am just starting to learn python, i was writing a simple
> i/o program but my print statement is acting weird. here is my code i want
> to know why it prints this way. thank you
>
> print("\nThe total amount required is ", total )
>
>
> OUTPUT
>
> ('\nThe total amount required is ', 3534)
>
> ===> the problem is obviously on the last print statement that is supposed
> to print the outut
>

Check your version of Python. The output you have given says that you're
using a Python 2 version, but the print syntax you're using is for Python
3. Unfortunately, you've hit one of the edge cases where they produce
different output.

As a general rule, either use % formatting or format()to produce a single
string to print, rather than relying on print to output them correctly for
you (or using string concatenation). Since you're only just starting you
won't have got to them yet - the simplest way to to it is to just insert
the string representation of all parameters. The above done using %
formatting would be:

print("\nThe total amount required is  %s" % (total,))

which will produce the same output on both Python 2 and Python 3. Note the
double space before %s - that matches your print statement (there would be
soft-space inserted in your print statement, which is another reason not to
rely on print for anything other than single strings). If you didn't want
that extra space, it's easy to delete.

Tim Delaney

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<div dir=3D"ltr">On 21 September 2013 07:57, Sam <span dir=3D"ltr">&lt;<a h=
ref=3D"mailto:anasdahany@gmail.com" target=3D"_blank">anasdahany@gmail.com<=
/a>&gt;</span> wrote:<br><div class=3D"gmail_extra"><div class=3D"gmail_quo=
te"><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-lef=
t:1px #ccc solid;padding-left:1ex">
hi everybody i am just starting to learn python, i was writing a simple i/o=
 program but my print statement is acting weird. here is my code i want to =
know why it prints this way. thank you<br><br>
print(&quot;\nThe total amount required is &quot;, total )<br>
<br>
<br>
OUTPUT<br>
<br>(&#39;\nThe total amount required is &#39;, 3534)<br><br>
=3D=3D=3D&gt; the problem is obviously on the last print statement that is =
supposed to print the outut<br></blockquote><div><br></div><div>Check your =
version of Python. The output you have given says that you&#39;re using a P=
ython 2 version, but the print syntax you&#39;re using is for Python 3. Unf=
ortunately, you&#39;ve hit one of the edge cases where they produce differe=
nt output.</div>
<div><br></div><div>As a general rule, either use % formatting or format()t=
o produce a single string to print, rather than relying on print to output =
them correctly for you (or using string concatenation). Since you&#39;re on=
ly just starting you won&#39;t have got to them yet - the simplest way to t=
o it is to just insert the string representation of all parameters. The abo=
ve done using % formatting would be:</div>
<div><br></div><div>print(&quot;\nThe total amount required is =C2=A0%s&quo=
t; % (total,))</div><div><br></div><div>which will produce the same output =
on both Python 2 and Python 3. Note the double space before %s - that match=
es your print statement (there would be soft-space inserted in your print s=
tatement, which is another reason not to rely on print for anything other t=
han single strings). If you didn&#39;t want that extra space, it&#39;s easy=
 to delete.</div>
<div><br></div><div>Tim Delaney=C2=A0</div></div></div></div>

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