# merge two dictionaries

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Impossible Impala answered on May 12, 2021 Popularity 8/10 Helpfulness 1/10

answer # merge two dictionaries

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# merge two dictionaries

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# merge two dictionaries
a = {'apple':1, 'melon': 4}
b = {'apple': 2, 'orange': 2,'banana':3}

merge_dic = {**a, **b}
print(merge_dic)                        # {'apple': 2, 'melon': 4, 'orange': 2, 'banana': 3}
#Python 3.9:
# a|b

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Contributed on Mar 26 2022

Impossible Impala

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python merge two dictionaries

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d1 = {'name': 'Alex', 'age': 25}
d2 = {'name': 'Alex', 'city': 'New York'}
merged_dict = {**d1, **d2}
print(merged_dict) # {'name': 'Alex', 'age': 25, 'city': 'New York'}

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Source: www.python-engineer.com

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Contributed on Oct 20 2021

Creepy Caterpillar

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how to merge two dictionaries

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>>> dict_a = {'a': 1, 'b': 2}
>>> dict_b = {'b': 3, 'c': 4}
>>> dict_c = {**dict_a, **dict_b}
>>> dict_c
# {'a': 1, 'b': 3, 'c': 4}

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Source: www.pythoncheatsheet.org

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Contributed on Aug 23 2022

Levi McDonough

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Python merge two dictionaries

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# Python 3.9
z = x | y

# Python 3.5
z = {**x, **y}

# Python <= 3.4
def merge_two_dicts(x, y):
    z = x.copy()   # start with keys and values of x
    z.update(y)    # modifies z with keys and values of y
    return z

z = merge_two_dicts(x, y)

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Source: stackoverflow.com

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Contributed on May 26 2022

Intempestive Al Dente

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python Merge Two Dictionaries

Comment

dict_1 = {1: 'a', 2: 'b'}
dict_2 = {2: 'c', 4: 'd'}

dict_3 = dict_2.copy()
dict_3.update(dict_1)

print(dict_3)

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Source: www.programiz.com

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Contributed on Jul 26 2022

Jinn world

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C# merge 2 dictionaries

Comment

foreach (var item in custom_settings)
{
   default_settings[item.Key] = item.Value;
}

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Source: stackoverflow.com

Tags: c# c

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Contributed on May 12 2021

Worrisome Weasel

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merge two dictionaries

Comment

# merge two dictionaries
x = {'a': 1,'b':2}
y = {'d':3,'c':5}
z = {**x, **y}
print(z)					# {'a': 1, 'b': 2, 'd': 3, 'c': 5}

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Contributed on Mar 22 2022

Impossible Impala

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.NET C# Dictionary Merge - merging two dictionaries

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public static Dictionary<TKey, HashSet<T>> Merge<TKey, T>(this Dictionary<TKey, HashSet<T>> destination, Dictionary<TKey, HashSet<T>> source)
{
    if (destination.Count == 0)
    {
        destination.AddRange(source);
        return destination;
    }
    if (source.Count == 0)
        return destination;

    foreach (var keyValuePair in source)
    {
        if (destination.Keys.Contains(keyValuePair.Key))
            destination[keyValuePair.Key].UnionWith(keyValuePair.Value);
        else
            destination.Add(keyValuePair.Key, keyValuePair.Value);
    }

    return destination;
}

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Contributed on Nov 25 2022

Arti

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python Merge Two Dictionaries

Comment

dict_1 = {1: 'a', 2: 'b'}
dict_2 = {2: 'c', 4: 'd'}

print(dict_1 | dict_2)

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Source: www.programiz.com

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Contributed on Jul 26 2022

Jinn world

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python Merge Two Dictionaries

Comment

dict_1 = {1: 'a', 2: 'b'}
dict_2 = {2: 'c', 4: 'd'}

print({**dict_1, **dict_2})

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Source: www.programiz.com

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Contributed on Jul 26 2022

Jinn world

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Merging Two Dictionaries

Comment

yusuke_power = {"Yusuke Urameshi": "Spirit Gun"}
hiei_power = {"Hiei": "Jagan Eye"}
powers = dict()

# Brute force
for dictionary in (yusuke_power, hiei_power): 
  for key, value in dictionary.items(): 
    powers[key] = value

# Dictionary Comprehension
powers = {key: value for d in (yusuke_power, hiei_power) for key, value in d.items()}

# Copy and update
powers = yusuke_power.copy()
powers.update(hiei_power)

# Dictionary unpacking (Python 3.5+)
powers = {**yusuke_power, **hiei_power}

# Backwards compatible function for any number of dicts
def merge_dicts(*dicts: dict): 
  merged_dict = dict() 
  for dictionary in dicts: 
    merge_dict.update(dictionary) 
  return merged_dict

Popularity 9/10 Helpfulness 2/10 Language python

Source: dev.to

Tags: python py

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Contributed on Sep 30 2022

David K.

0 Answers Avg Quality 2/10

# merge two dictionaries

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