python - How do you print a hash in Django 1.7 and store it in a database? -

i created hash going use later confirmation email logic this:

import hashlib, datetime, random   def hash(request):     username = 'johndoe' #inserted line simplify code     random_str = str(random.random()).encode('utf-8')     salt = hashlib.sha1(random_str).hexdigest()[:5]     salted = (salt + username).encode('utf-8')     activation_key = hashlib.sha1(salted).hexdigest()     return render_to_response('ftest/display.html', activation_key) 

my first question how print in html can see when html renders?

this doesn't seem work in display.html :

<p> activation key {{activation_key}} </p> 

next, how define hash field in database? charfield like:

hash = models.charfield(max_length=200) 

render_to_response expects dict :

return render_to_response('ftest/display.html', {'activation_key': activation_key}) 

a charfield right way go.