Python3 Quick Merge Dictionary

When there are two dictionaries that need to be merged, take into account the particularity of the dictionary, you need to first turn it into the form of a list, add operations and then back to the dictionary, as follows:

x = {' A ': 1, ' B ': 3}y = {' C ': 5, ' d ': 8}z = dict (List (X.items ()) + list (Y.items ())) print (z)
# {' d ': 8, ' C ': 5, ' a ': 1, ' B ': 3}

A more convenient method is available in the python3.5:

x = {' A ': 1, ' B ': 3}y = {' C ': 5, ' d ': 8} #z = Dict (List (X.items ()) + list (Y.items ())) Z = {**x, **y}print (z)

The result is the same as above, and faster (do not know the principle, just look at the data said faster), this method is Python has wood?

Python3 Quick Merge Dictionary