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How to create Python dictionary from the value of another dictionary?
You can do this by merging the other dictionary to the first dictionary. In Python 3.5+, you can use the ** operator to unpack a dictionary and combine multiple dictionaries using the following syntax −
Syntax
a = {'foo': 125}
b = {'bar': "hello"}
c = {**a, **b}
print(c)Output
This will give the output −
{'foo': 125, 'bar': 'hello'}This is not supported in older versions. You can however replace it using the following similar syntax −
Syntax
a = {'foo': 125}
b = {'bar': "hello"}
c = dict(a, **b)
print(c)Output
This will give the output −
{'foo': 125, 'bar': 'hello'}Another thing you can do is using copy and update functions to merge the dictionaries.
example
def merge_dicts(x, y):
z = x.copy() # start with x's keys and values
z.update(y) # modify z with y's keys and values
return z
a = {'foo': 125}
b = {'bar': "hello"}
c = merge_dicts(a, b)
print(c)Output
This will give the output −
{'foo': 125, 'bar': 'hello'}
Updated on: 17-Jun-2020
2K+ Views
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