iter_prefix_values and friends

[oberstet]

Would be nice to have those, so that the library can be used as a dropin replacement for PyTrie.

[kmike]

Hi,

+1 for this feature. I don't currently have a time and an intention to do this myself, so pull requests are appreciated. It should be pretty straightforward to implement:

• copy&paste BaseTrie.iter_prefix_items method to BaseTrie.iter_prefix_values (in src/datrie.pyx);
• remove unneeded stuff;
• add Trie.iter_prefix_values;
• run ./update_c.sh;
• add a simple test;
• run tox to check if test passes.

I never thought about datrie as a drop-in replacement for PyTrie, but that make sense indeed (as API was modelled after PyTrie).

[kmike]

These methods are available in datrie 0.6.