Q:

Why can't I add word in a trie via pygtrie? 

I want to build a trie to record the phrases.  Thus the unit is word instead of character.  And I have found a promising implementation by google here.  But according to their documentation, there is no add function.  I wonder how can I add/insert a word into a trie?  Thanks in advance! 

A:

This trie implementation provides the same interface as a dict.   Your add function would simply be mytrie[key] = value.