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RuntimeWarning: DateTimeField received a naive datetime
... not in Django settings, but in the date passed to the model. Here's how a timezone-aware object looks like:
>>> from django.utils import timezone
>>> import pytz
>>> timezone.now()
datetime.datetime(2013, 11, 20, 20, 8, 7, 127325, tzinfo=pytz.UTC)
And here's a naive ob...
Difference between freeze and seal
...n object.One of JavaScript’s features is that you can add a property any time you like; you can also do this accidentally by mis-typing. Many of my students have tried to add an event handler called onClick or onlick and wondered why it’s not working. If JavaScript throws an error, then that’s...
How to prevent form from submitting multiple times from client side?
Sometimes when the response is slow, one might click the submit button multiple times.
23 Answers
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How do I get a value of datetime.today() in Python that is “timezone aware”?
I am trying to subtract one date value from the value of datetime.today() to calculate how long ago something was. But it complains:
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How to find patterns across multiple lines using grep?
... a bit more explanation, and in that case, I would've up-voted it one more time. I know a bit of sed, but not enough to use this answer to produce a meaningful exit code after half an hour of fiddling. Tip: 'RTFM' rarely gets up-votes on StackOverflow, as your previous comment shows.
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Static Initialization Blocks
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The non-static block:
{
// Do Something...
}
Gets called every time an instance of the class is constructed. The static block only gets called once, when the class itself is initialized, no matter how many objects of that type you create.
Example:
public class Test {
static{
...
How to close tag properly?
...cy validation.
see: 2011 discussion and additional links here, though over time some bits may have changed
Partly this is because browsers try very hard to error correct. Also, because there has much confusion about self-closing tags, and void tags. Finally, The spec has changed, or hasn't always...
How do I simulate a low bandwidth, high latency environment?
...ked very well for my applications, but I also ended up using WANem several times. The provided bootable ISO (and virtual appliance images) made it quite handy.
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How safe is it to store sessions with Redis?
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This question is really about real-time sessions, and seems to have arisen partly due to a misunderstanding of the phrase 'delayed write operations' While the details were eventually teased out in the comments, I just wanted to make it super-duper clear...
Yo...
Xcode: Build Failed, but no error messages
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really a great answer. I have build 4-5 times. even restarted the xcode
– Saurabh Prajapati
Sep 24 at 10:30
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