title: Encryption using passlib.hash - sha256_crypt.encrypt and decryption
body: <p>I am taking password inputs from user  and planning to use passlib.hash library for encrypting the password . </p>
  
  <p>I am able to encrypt the password successfully and their documentation states about the verify function usage, however I want to find out the original password entered , Is it possible ?</p>
  
  <p>For example :
               User entered a password : abcd
               Password encrypted using passlib to a variable hash 
               How to decrypt the password hash and get value abcd ?</p>
  
  <p>See the sample code below :</p>
  
  <pre><code>    print "Enter a password "
      passw = raw_input()
      print "password entered is ", passw
      hash = sha256_crypt.encrypt(passw)
  retrivepass=?
  </code></pre>
  
  <p>Is it possible to retrive the original password ? If not what is the best alternative ? 
  Thanks in advance</p>