Merge dicts python

Python merge dictionaries

dict1 = {'color': 'blue', 'shape': 'square'}
dict2 = {'color': 'red', 'edges': 4}

dict1.update(dict2) #if a key exists in both, it takes the value of the second dict
# dict1 = {'color': 'red', 'shape': 'square', 'edges': 4}
# dict2 is left unchanged

Python join dict

dict.update([other])

Source: thispointer.com

Python merge dictionaries

def merge_dicts(dict1, dict2):
        """Here's an example of a for-loop being used abusively."""
        return {**dict2, **{k: (v if not (k in dict2) else (v + dict2.get(k)) if isinstance(v, list) else merge_dicts(v, dict2.get(k))) if isinstance(v, dict) else v for k, v in dict1.items()}}

Merge multile dict

dict1 = {"a":1, "b":2}
dict2 = {"x":3, "y":4}
merged = {**dict1, **dict2}
print(merged) # {'a': 1, 'b': 2, 'x': 3, 'y': 4}

Merge a list of dictionaries python

>>> from collections import ChainMap
>>> a = [{'a':1},{'b':2},{'c':1},{'d':2}]
>>> dict(ChainMap(*a))
{'b': 2, 'c': 1, 'a': 1, 'd': 2}

Source: stackoverflow.com

Python concatenate dictionaries

# list_of_dictionaries contains a generic number of dictionaries
# having the same type of keys (str, int etc.) and type of values
global_dict = {}

for single_dict in list_of_dictionaries:
    global_dict.update(single_dict)

Similar codes

0 vote137 views1 answer
Response 200 python
Python
0 vote106 views1 answer
Are logN and (lognN) same
Python
16 votes89 views3 answers
How to read the first line in a file python
Python
1 vote95 views1 answer
How to change opencv capture resolution
Python
66 votes99 views6 answers
Alphabet python
Python
0 vote105 views1 answer
Unpacking list using underscore
Python
12 votes110 views2 answers
Is python object oriented language
Python
0 vote106 views1 answer
Issue AttributeError: ‘numpy.ndarray’ object has no attribute ‘index’
Python
0 vote99 views1 answer
Map dataframe parallel
Python
0 vote100 views1 answer
How to call the tkinter insert command from another class
Python