Login

Function decorator for caching function results in local memory

Author:
bikeshedder
Posted:
September 24, 2012
Language:
Python
Version:
Not specified
Score:
0 (after 0 ratings)
@cache(60)
def heavy_computation():
   for x in xrange(10000000):
       pass # just waste some time`

The result of heavy_computation calls will be cached for 60 seconds. This cache decorator does not use the Django cache backend and uses the local memory instead.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
from time import time

class cache(object):
    def __init__(self, seconds):
        self.seconds = seconds
        self.value = None
        self.timestamp = None
    def __call__(self, f):
        def cached():
            now = time()
            if now - self.seconds > self.timestamp:
                self.value = f()
                self.timestamp = now
            return self.value
        return cached

More like this

  1. Month / Year SelectDateWidget based on django SelectDateWidget by pierreben 3 weeks, 5 days ago
  2. Python Django CRUD Example Tutorial by tuts_station 1 month, 1 week ago
  3. Browser-native date input field by kytta 2 months, 3 weeks ago
  4. Generate and render HTML Table by LLyaudet 3 months ago
  5. My firs Snippets by GutemaG 3 months, 1 week ago

Comments

Please login first before commenting.