title: Read a text file and convert into nested dict of dict with same keys using python
body: <p>I want python to read text file and create a nested dict. 
  I have these datas in a text file abc.</p>
  
  <blockquote>
    <p>'name':'a', 'age':11, 'blood group':'A+ve', 'mob num':123456,
    'address':'12,abc street'</p>
    
    <p>'name':'b', 'age':12, 'blood group':'A-ve', 'mob num':124,
    'address':'112,abc street'</p>
  </blockquote>
  
  <p>I have read the text file but I dont know how to proceed. I'm a beginner in python.</p>
  
  <pre><code>with open ("text.txt",'r') as f:
      for line in f:
          print line
  </code></pre>
  
  <p>My output should look like </p>
  
  <blockquote>
    <p>{Name:a,b Age:11,12 { blood group: A+ve,A -ve {Mob num: 123456,124
    {Address: 12 abc street, 112 abc street}}}}</p>
  </blockquote>