Adding dictionaries together, Python [duplicate]
If you're interested in creating a new dict without using intermediary storage: (this is faster, and in my opinion, cleaner than using dict.items())
dic2 = dict(dic0, **dic1)Or if you're happy to use one of the existing dicts:
dic0.update(dic1)
Here are quite a few ways to add dictionaries.
You can use Python3's dictionary unpacking feature.
ndic = {**dic0, **dic1}Or create a new dict by adding both items.
ndic = dict(dic0.items() + dic1.items())If your ok to modify dic0
dic0.update(dic1)If your NOT ok to modify dic0
ndic = dic0.copy()ndic.update(dic1)If all the keys in one dict are ensured to be strings (dic1 in this case, of course args can be swapped)
ndic = dict(dic0, **dic1)In some cases it may be handy to use dict comprehensions (Python 2.7 or newer),
Especially if you want to filter out or transform some keys/values at the same time.
ndic = {k: v for d in (dic0, dic1) for k, v in d.items()}
>>> dic0 = {'dic0':0}>>> dic1 = {'dic1':1}>>> ndic = dict(dic0.items() + dic1.items())>>> ndic{'dic0': 0, 'dic1': 1}>>>