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how to merge two dictionaries with same keys in python

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Tutorial: Merging Two Dictionaries with the Same Keys in Python
In Python, merging dictionaries is a common operation, especially when dealing with data from multiple sources. If you have two dictionaries with overlapping keys and you want to merge them, you can follow these steps.
Step 1: Using the update() Method
Python dictionaries come with an update() method that allows you to merge the contents of one dictionary into another. This method is particularly useful when you have two dictionaries with the same keys, and you want to update the values of the first dictionary with the values from the second dictionary.
Here's a simple example:
In this example, dict1 will be updated with the key-value pairs from dict2. If a key already exists in dict1, its value will be overwritten by the corresponding value from dict2. If a key is unique to dict2, it will be added to dict1.
Step 2: Using the ** Unpacking Operator
Another way to merge dictionaries in Python is by using the ** unpacking operator. This method allows you to create a new dictionary by unpacking the key-value pairs from both dictionaries into the new one.
This creates a new dictionary merged_dict without modifying the original dictionaries (dict1 and dict2). Like the update() method, if there are common keys between the dictionaries, the values from the second dictionary (dict2 in this case) will overwrite the values from the first dictionary (dict1).
Choose the method that best suits your use case. The update() method modifies the original dictionary in-place, while the ** unpacking operator creates a new dictionary.
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In Python, merging dictionaries is a common operation, especially when dealing with data from multiple sources. If you have two dictionaries with overlapping keys and you want to merge them, you can follow these steps.
Step 1: Using the update() Method
Python dictionaries come with an update() method that allows you to merge the contents of one dictionary into another. This method is particularly useful when you have two dictionaries with the same keys, and you want to update the values of the first dictionary with the values from the second dictionary.
Here's a simple example:
In this example, dict1 will be updated with the key-value pairs from dict2. If a key already exists in dict1, its value will be overwritten by the corresponding value from dict2. If a key is unique to dict2, it will be added to dict1.
Step 2: Using the ** Unpacking Operator
Another way to merge dictionaries in Python is by using the ** unpacking operator. This method allows you to create a new dictionary by unpacking the key-value pairs from both dictionaries into the new one.
This creates a new dictionary merged_dict without modifying the original dictionaries (dict1 and dict2). Like the update() method, if there are common keys between the dictionaries, the values from the second dictionary (dict2 in this case) will overwrite the values from the first dictionary (dict1).
Choose the method that best suits your use case. The update() method modifies the original dictionary in-place, while the ** unpacking operator creates a new dictionary.
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