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Python: Check if a given function returns True for at least one element in the list

Python List: Exercise - 246 with Solution

Write a Python program to check if a given function returns True for at least one element in the list.

Use any() in combination with map() to check if fn returns True for any element in the list.

Sample Solution:

Python Code:

def some(lst, fn = lambda x: x):
  return any(map(fn, lst))
print(some([0, 1, 2, 0], lambda x: x >= 2 ))
print(some([5, 10, 20, 10], lambda x: x < 2 ))

Sample Output:

True
False

Flowchart:

Flowchart: Check if a given function returns True for at least one element in the list.

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Python Code Editor:

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Previous: Write a Python program to that takes any number of iterable objects or objects with a length property and returns the longest one.
Next: Write a Python program to calculate the difference between two iterables, without filtering duplicate values.

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Python: Tips of the Day

Big Number Readability:

you can separate zeros with underscore (_)

print(2_000_000)
print(2_000_000 +1)

Output:

2000000
2000001