Yes assignment operator can be used to copy elements from one dictionary to other. Also you can use copy() to do the same. Have a look at the following
>>> a,b = {},{} # initialize the dictionaries
>>> a = {1:"hi",2:"hello"}
>>> a
{1: 'hi', 2: 'hello'}
>>> b=a # use of assignment operator
>>> b
{1: 'hi', 2: 'hello'}
>>> c=b.copy() # use of copy method
>>> c
{1: 'hi', 2: 'hello'}
>>>