小编anc*_*evv的帖子

Pip不会更新到最新的python版本

Python是2.7.3版本,但是当我尝试通过"pip"升级python时,我得到了这个:

$ pip install --upgrade python
Requirement already up-to-date: python in /usr/lib64/python2.6/lib-dynload
Cleaning up...
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有什么建议?

python pip

1
推荐指数
1
解决办法
350
查看次数

如何过滤今天创建的对象(Django)

orders = Order.objects.filter(date__range=[datetime.datetime.now(), datetime.timedelta(days=1)])
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我想这并不能完全符合我的要求,但是当我输入我的python shell时,我会不断收到此警告.

RuntimeWarning: DateTimeField received a naive datetime (2012-08-26 02:03:25.614372) while time zone support is active.
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django datetime

1
推荐指数
1
解决办法
7822
查看次数

更改UINavigationBar的颜色

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 
{
self.navigationController.navigationBar.tintColor = [UIColor blackColor];
if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])) 
{       
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel
                                                                                          target:self
                                                                                          action:@selector(cancel)];

    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Send to Twitter"
                                                                              style:UIBarButtonItemStyleDone
                                                                             target:self
                                                                             action:@selector(save)];

}
return self;
}
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另一段代码

 - (void)loadView 
    {
[super loadView];

self.navigationController.navigationBar.tintColor = [UIColor blackColor];
self.view.backgroundColor = [UIColor whiteColor];

self.textView = [[UITextView alloc] initWithFrame:self.view.bounds];
textView.delegate = self;
textView.font = [UIFont systemFontOfSize:15];
textView.contentInset = UIEdgeInsetsMake(5,5,0,0);
textView.backgroundColor = [UIColor whiteColor];    
textView.autoresizesSubviews = YES;
textView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

[self.view …
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iphone objective-c uinavigationbar uinavigationcontroller

0
推荐指数
1
解决办法
2363
查看次数

django视图功能可以互相覆盖吗?

我正在浏览django教程,我想知道当你在views.py中有两个同名函数时会发生什么?

例如:

def results(request, poll_id):
   p = get_object_or_404(Poll, pk=poll_id)
   return render_to_response('polls/results.html', {'poll': p})

def results(request, poll_id):
    return HttpResponse("You're looking at the results of poll %s." % poll_id)
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当我运行代码时,底部函数是被调用的函数.这是如何运作的?

django django-views

0
推荐指数
1
解决办法
771
查看次数