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Python: Find the maximum and minimum values in a given heterogeneous list using lambda

Python Lambda: Exercise-29 with Solution

Write a Python program to find the maximum value in a given heterogeneous list using lambda.

Sample Solution:

Python Code :

def max_val(list_val):
     max_val = max(list_val, key = lambda i: (isinstance(i, int), i))  
     return(max_val)

list_val = ['Python', 3, 2, 4, 5, 'version'] 
print("Original list:")
print(list_val)
print("\nMaximum values in the said list using lambda:")
print(max_val(list_val))

Sample Output:

Original list:
['Python', 3, 2, 4, 5, 'version']

Maximum values in the said list using lambda:
5

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Previous: Write a Python program to sort a given list of lists by length and value using lambda.
Next: Write a Python program to sort a given matrix in ascending order according to the sum of its rows using lambda.

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Python: Tips of the Day

Python: Cache results with decorators

There is a great way to cache functions with decorators in Python. Caching will help save time and precious resources when there is an expensive function at hand.

Implementation is easy, just import lru_cache from functools library and decorate your function using @lru_cache.

from functools import lru_cache

@lru_cache(maxsize=None)
def fibo(a):
    if a <= 1:
        return a
    else:
        return fibo(a-1) + fibo(a-2)

for i in range(20):
    print(fibo(i), end="|")

print("\n\n", fibo.cache_info())

Output:

0|1|1|2|3|5|8|13|21|34|55|89|144|233|377|610|987|1597|2584|4181|

 CacheInfo(hits=36, misses=20, maxsize=None, currsize=20)