On Jul 14, 9:36 am, someone1 wrote:
> Using the simplejson class resulted in code significantly slower
> (15-20x slower). However, using the built-in json class in Python 2.7
> resulted in code slightly faster than repr() (3-5x faster).
>
> With the upcoming support for 2.7, I'd suggest keeping
While this seems to be the case in Python 2.5 (without a built-in json
class), it isn't true in Python 2.7 (from my tests at least):
import string, random, profile, json
#import simplejson as json
def randomString(length):
return ''.join(random.choice(string.ascii_uppercase +
There is an _unindexed_properties private property of model class:
class A(db.Expando):
pass
A._unindexed_properties = frozenset(['prop'])
a = A()
a.prop = 1 # it's not indexed
a.put()
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keakon
My blog(Chinese): www.keakon.net
Blog source code: https://bitbucket.org/keakon/doodle/
Very interesting, thanks for sharing.
If you just need a simple dictionary-like storage, why not just repr()
and eval() - wouldn't that be even faster?
On Jul 13, 8:05 am, someone1 wrote:
> I just looked into this myself. Best bet is to use a Text or Blob
> property to store in a JSON format:
>
Instead of setting an expando property to the property's value, can you set
it to an instance of a Property class? To modify the example in the
documentation:
class Song(db.Expando):
title = db.StringProperty()
crazy = Song(title='Crazy like a diamond',
author=db.StringPropert
I just looked into this myself. Best bet is to use a Text or Blob
property to store in a JSON format:
http://kovshenin.com/archives/pickle-vs-json-which-is-faster/
I did many tests with 250-500 expando properties and the results were
horrendous. From digging around I didn't find a way to disable
1) text property? not familer with Python, I believe there is a better
answer
2) max 5000 indexes are allowed to build on single entity
3) you can try to save all properties (those don't require index) into one
single json / xml text property
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