Based on snippet #1212 along with it's comments.
Replaced the for loop with translate.
example usage:
from django.core.cache import cache
from mysnippet import cache_key_clean
expensive_func = lambda x: 'x{0}x'.format(x)
input_string = "I wanted a nice value."
key = cache_key_clean(input_string)
result = cache.get(key)
if result is None:
result = expensive_func(input_string)
cache.set(key, result)
1 2 3 4 5 6 7 8 9 10 11 | from django.utils.hashcompat import md5_constructor
drop_chars = ''.join(['%c' % c for c in range(32)]) + ' '
def cache_key_clean(value):
"""
Make a key of the first up to 228 valid characters of the value,
appended with the md5 of the whole value.
"""
md5_hash = md5_constructor(value).hexdigest()
return ''.join([value.translate(None,drop_chars)[:228], md5_hash])
|
More like this
- New Snippet! by Antoliny0919 4 days, 18 hours ago
- Add Toggle Switch Widget to Django Forms by OgliariNatan 2 months, 3 weeks ago
- get_object_or_none by azwdevops 6 months, 2 weeks ago
- Mask sensitive data from logger by agusmakmun 8 months, 1 week ago
- Template tag - list punctuation for a list of items by shapiromatron 1 year, 10 months ago
Comments
Please login first before commenting.