﻿ Python: Extract year, month, date and time using Lambda - w3resource

Python: Extract year, month, date and time using Lambda

Python Lambda: Exercise-8 with Solution

Write a Python program to extract year, month, date and time using Lambda.

Sample Solution:

Python Code :

``````import datetime
now = datetime.datetime.now()
print(now)
year = lambda x: x.year
month = lambda x: x.month
day = lambda x: x.day
t = lambda x: x.time()
print(year(now))
print(month(now))
print(day(now))
print(t(now))
``````

Sample Output:

```2020-01-15 09:03:32.744178
2020
1
15
09:03:32.744178
```

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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)```