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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]

Flowchart:

Flowchart: Return the symmetric difference between two iterables, without filtering out duplicate values.

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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.
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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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