Python: Return the symmetric difference between two iterables, without filtering out duplicate values
Python List: Exercise - 242 with Solution
Write a Python program to get the symmetric difference between two iterables, without filtering out duplicate values.
- Create a set from each list.
- Use a list comprehension on each of them to only keep values not contained in the previously created set of the other.
Sample Solution:
Python Code:
def symmetric_difference(x, y):
(_x, _y) = (set(x), set(y))
return [item for item in x if item not in _y] + [item for item in y
if item not in _x]
print(symmetric_difference([10, 20, 30], [10, 20, 40]))
Sample Output:
[30, 40]
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Previous: Write a Python program to create a dictionary with the unique values of a given list as keys and their frequencies as the values.
Next: Write a Python program to check if a given function returns True for every element in a list.
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Python: Tips of the Day
Given a predicate function, fn, and a prop string, this curried function will then take an object to inspect by calling the property and passing it to the predicate:
Example:
def tips_check_prop(fn, prop): return lambda obj: fn(obj[prop]) check_age = tips_check_prop(lambda x: x >= 25, 'age') user = {'name': 'Owen', 'age': 25} print(check_age(user))
Output:
True
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