What are some examples of using cachetools in Python?

What are some examples of using cachetools in Python?

Cachetools is a Python library that provides various caching strategies. For example, you can use it to cache the results of expensive function calls.

Can you show me a simple code example?

Sure! Here's a basic example:

from cachetools import cached, TTLCache

# Create a cache with a time-to-live of 300 seconds
cache = TTLCache(maxsize=100, ttl=300)

@cached(cache)
def expensive_function(x):
    # Simulate an expensive computation
    return x * x

result = expensive_function(4)  # This will compute and cache the result

How does the TTLCache work?

The TTLCache automatically removes entries after a specified time-to-live (TTL) period. In the example, entries expire after 300 seconds.

Are there other caching strategies available in cachetools?

Yes, cachetools offers several strategies like LRU (Least Recently Used), LFU (Least Frequently Used), and more, each suited for different use cases.