Filtering dictionaries in Python can be done using dictionary comprehensions or the built-in filter function. Here’s an example of how to filter a dictionary based on specific criteria.
filter, dictionary, Python, dictionary comprehension, built-in functions
This content provides examples of how to filter dictionaries in Python using pure Python techniques. It covers both dictionary comprehensions and the filter function.
# Example of filtering a dictionary to get entries with values greater than 2
data = {'a': 1, 'b': 2, 'c': 3, 'd': 4}
# Using dictionary comprehension
filtered_data = {key: value for key, value in data.items() if value > 2}
print(filtered_data) # Output: {'c': 3, 'd': 4}
# Using the filter function
filtered_data = dict(filter(lambda item: item[1] > 2, data.items()))
print(filtered_data) # Output: {'c': 3, 'd': 4}
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