Looping through a JSON array in Python

Looping through a JSON array in Python

Looping through a JSON array in Python involves iterating over the elements of the JSON array, which can be a list in Python. You can use a for loop to iterate through each element of the JSON array and perform operations on them.

Here's an example of how to loop through a JSON array using the json module in Python:

import json # Sample JSON array json_data = '[{"name": "Alice", "age": 25}, {"name": "Bob", "age": 30}, {"name": "Charlie", "age": 22}]' # Parse the JSON array data = json.loads(json_data) # Loop through the JSON array for item in data: name = item['name'] age = item['age'] print(f"Name: {name}, Age: {age}")

In this example, the json.loads() function is used to parse the JSON array into a Python list of dictionaries. Then, the for loop iterates through each dictionary in the list, accessing the values using the keys 'name' and 'age'.

If you're working with a JSON array that is stored in a file, you can read the JSON data from the file and then iterate through it similarly:

import json # Read JSON array from a file with open('data.json', 'r') as file: data = json.load(file) # Loop through the JSON array for item in data: # Perform operations on each item pass

Replace 'data.json' with the actual path to your JSON file.

Examples

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    import json # Sample JSON array json_data = '[{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]' # Convert JSON string to Python list data = json.loads(json_data) # Loop through each item in the array for item in data: print(item)

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    import json # Sample JSON array json_data = '[{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]' # Convert JSON string to Python list data = json.loads(json_data) # Iterate through each dictionary in the array for person in data: for key, value in person.items(): print(f'{key}: {value}') print() # Empty line for clarity

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    import json # Sample JSON array json_data = '[{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]' # Convert JSON string to Python list data = json.loads(json_data) # Loop through the array and access specific keys for person in data: print(person['name'], person['age'])

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    import json # Sample JSON array json_data = '[{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]' # Convert JSON string to Python list data = json.loads(json_data) # Iterate through each object in the array for obj in data: for key in obj: print(key, ":", obj[key])

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    import json # Sample JSON array json_data = '[{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]' # Convert JSON string to Python list data = json.loads(json_data) # Loop through each element in the array and print for element in data: print(element)

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    import json # Sample JSON array json_data = '[{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]' # Convert JSON string to Python list data = json.loads(json_data) # Iterate through each element in the array for i in range(len(data)): print(data[i])

  7. "How to loop through JSON array in Python using for loop?"

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    import json # Sample JSON array json_data = '[{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]' # Convert JSON string to Python list data = json.loads(json_data) # Loop through each item in the array using a for loop for item in data: print(item)

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    import json # Sample JSON array json_data = '[{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]' # Convert JSON string to Python list data = json.loads(json_data) # Recommended approach for iterating through JSON array for obj in data: print(obj['name'], obj['age'])

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    import json # Sample JSON array json_data = '[{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]' # Convert JSON string to Python list data = json.loads(json_data) # Efficiently loop through each element in the array for element in data: print(element)

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