How do I merge dictionaries together in Python?

Question

d3 = dict(d1, **d2)

I understand that this merges the dictionary. But, is it unique? What if d1 has the same key as d2 but different value? I woul

Answer 1

Trey Hunner has a nice blog post outlining several options for merging multiple dictionaries, including (for python3.3+) ChainMap and dictionary unpacking.