why i can run python script using python not ./?
<p>Can anyone tell me why i can't run python using ./ but able to use python </p>

<pre><code>-rwxr-xr-x@ 1 xxxx  staff   258 14 Nov 14:08 ltry.py
-rwxr-xr-x@ 1 xxxx  staff  1037 14 Nov 11:20 pdTry.py
 xxxx-MacBook-Pro:python xxxx$ ./ltry.py
 File "./ltry.py", line 10
 print "Hello you"
                 ^
 SyntaxError: invalid syntax
xxxx-MacBook-Pro:python xxxx$ python ltry.py
Hello you
['ltry.py']
</code></pre>

<p>Also, i installed python IDLE, but i wan't able to try print, why? </p>

<pre><code>Python 3.3.0 (v3.3.0:bd8afb90ebf2, Sep 29 2012, 01:25:11) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "copyright", "credits" or "license()" for more information.
&gt;&gt;&gt; print 'eeere'
SyntaxError: invalid syntax
&gt;&gt;&gt; print "helooe"
SyntaxError: invalid syntax
</code></pre>
