title: Python dict key delete if pattern match with other dict key
body: <p>Python dict key delete, if key pattern match with other dict key.</p>
  
  <p>e.g.</p>
  
  <pre><code>a={'a.b.c.test':1,  'b.x.d.pqr':2,  'c.e.f.dummy':3,  'd.x.y.temp':4}
  
  b={'a.b.c':1,  'b.p.q':20}
  </code></pre>
  
  <p>result</p>
  
  <pre><code>a={'b.x.d.pqr':2,'c.e.f.dummy':3,'d.x.y.temp':4}`  
  </code></pre>