大约有 47,000 项符合查询结果（耗时：0.0255秒） [XML]
What is the Python equivalent of static variables inside a function?
...e a decorator:
def static_vars(**kwargs):
def decorate(func):
for k in kwargs:
setattr(func, k, kwargs[k])
return func
return decorate
Then use the code like this:
@static_vars(counter=0)
def foo():
foo.counter += 1
print "Counter is %d" % foo.counter
...
Django: Get list of model fields?
...herits from models.Model . I want to get a list of all the fields defined for this model. For example, phone_number = CharField(max_length=20) . Basically, I want to retrieve anything that inherits from the Field class.
...
How are booleans formatted in Strings in Python?
...fic to boolean values - %r calls the __repr__ method on the argument. %s (for str) should also work.
share
|
improve this answer
|
follow
|
...
Undefined reference to `pow' and `floor'
...
Thanks! I've been googling for the past 30 minutes and this is the first reference that said to link the libraries after the objects
– Dave Baghdanov
Nov 6 '13 at 22:13
...
搭建高可用mongodb集群（二）—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...
...undSync] replSet not trying to sync from 192.168.1.138:27017, it is vetoed for 10 more seconds
Sun Dec 29 22:03:05.499 [rsHealthPoll] DBClientCursor::init call() failed
Sun Dec 29 22:03:05.499 [rsHealthPoll] replset info 192.168.1.138:27017 heartbeat failed, retrying
Sun Dec 29 22:03:05.501 [rsHe...
Dashed line border around UIView
...
Jonguo For example, if you add any image with proper resolution like suppose your normal image size is 120x120 and it's name is test.png then create another two image with name test@2x.png and test@3x.png with size of 240x240 and 36...
Format floats with standard json module
...
Note: This does not work in any recent version of Python.
Unfortunately, I believe you have to do this by monkey-patching (which, to my opinion, indicates a design defect in the standard library json package). E.g., this code:
import json
from json import encoder
encoder.FLOAT_REPR = ...
How to sort a list of objects based on an attribute of the objects?
... it's a list of Django objects, you should consider his solution. However, for the general case of sorting objects, my solution is probably best practice.
– Triptych
Dec 31 '08 at 17:12
...
How can we programmatically detect which iOS version is device running on? [duplicate]
...ll be stripped due to its type, 5.0.1 will become 5.0 or 5 (float or int), for comparing precisely, you will have to separate it to array of INTs
check accepted answer here: Check iPhone iOS Version
NSString *ver = [[UIDevice currentDevice] systemVersion];
int ver_int = [ver intValue];
float ...
How does Trello access the user's clipboard?
...ner"><textarea id="clipboard"></textarea></div>
CSS for the clipboard stuff:
#clipboard-container {
position: fixed;
left: 0px;
top: 0px;
width: 0px;
height: 0px;
z-index: 100;
display: none;
opacity: 0;
}
#clipboard {
width: 1px;
height: 1px;
pad...