I am trying to install python 2.7 on my Windows 7 64-bit machine. (AMD AthlonII X4 635 2.90 Ghz) 4Gb RAM
<p>I installed the 2.5.6 version from the following site: <a href="http://www.python.org/download/releases/2.5.6/" rel="nofollow">http://www.python.org/download/releases/2.5.6/</a> (the .tgz) It seems to have installed correctly but I am having problems when I go to use it. I Open up the Command line version and it looks ok but if I type any commands and try to execute them it gives me errors.  This is my first venture into python and I could be doing this completely wrong. I am also unable to change directories using the command line. I have a Sample program in a directory: ex1.py
I see the following in my command prompt:</p>

<pre>Python 2.7.2 (default, Jun 12 2011, 14:24:46) [MSC v.1500 64-bit (AMD64)] on Windows 32
Type "help", "copyright", "credits" or "license" for more information.
>>>
</pre>

<p>I entered the following:</p>

<pre>
>>> python ex1.py
</pre>

<p>The following message returned:</p>

<pre>
   File "", line 1
     python ex1.py
              ^
SytnaxError: Invalid syntax
</pre>

<p>Now it could be a syntax error but I do not see anything it is a simple "Hello world" program.  I am not comfortable with the install and fear I may of screwed things up.  </p>
