title: Ruby - open("file_path") - Errno::ENOENT: No such file or directory
body: <p>I keep getting this <code>No such file or directory</code> error when trying to open a file. I'm doing:</p>
  
  <p><code>file = open("http://farm7.static.flickr.com/6064/6090089285_242ca0e342_m.jpg")</code> according to the <a href="http://ruby-doc.org/stdlib-1.9.3/libdoc/open-uri/rdoc/OpenURI.html" rel="noreferrer">ruby-doc</a> and keep getting such error.</p>
  
  <p>What am I doing wrong?</p>