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What generates the “text file busy” message in Unix?
... I don't think chmod would return before the permissions were set. That might be a filesystem issue.
– Penz
Oct 2 '17 at 15:02
How to create border in UIButton?
...
You can set the border properties on the CALayer by accessing the layer property of the button.
First, add Quartz
#import <QuartzCore/QuartzCore.h>
Set properties:
myButton.layer.borderWidth = 2.0f;
myButton.layer.borderCo...
Convert Django Model object to dict with all of the fields intact
... is strictly worse than the standard model_to_dict invocation.
4. query_set.values()
SomeModel.objects.filter(id=instance.id).values()[0]
which returns
{'auto_now_add': datetime.datetime(2018, 12, 20, 21, 34, 29, 494827, tzinfo=<UTC>),
'foreign_key_id': 2,
'id': 1,
'normal_value': 1,...
Find out time it took for a python script to complete execution
...s
>>>fun(input)
output
Good, that works, now import timeit and set up a timer
>>>import timeit
>>>t = timeit.Timer('example.fun(input)','import example')
>>>
Now we have our timer set up we can see how long it takes
>>>t.timeit(number=1)
some numbe...
GitHub - failed to connect to github 443 windows/ Failed to connect to gitHub - No Error
...h suggested the same thing, that I have to update the Git Config for proxy setting
Damn, can not see proxy information from control panel. IT guys must have hidden it. I can not even change the setting to not to use proxy.
Found this wonderful tutorial of finding which proxy your are connected to
U...
廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
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make
make install
安装成功后drbd相关的工具(drbdadm,drbdsetup)被安装到/usr/local/drbd-utils-8.9.3/etc/sbin目录下
#cp /usr/local/drbd/etc/rc.d/init.d/drbd-utils-8.9.3 /etc/rc.d/init.d/
#chkconfig --add drbd
#chkconfig --level 2345 drbd on
#链接drbd...
What is the difference between self-types and trait subclasses?
A self-type for a trait A :
11 Answers
11
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Calculating frames per second in a game
...'s updated on each frame. The higher the ratio, the longer it will take to settle the "time" variable towards a value (or drift it away from it).
– jox
Jun 6 '15 at 22:08
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Formatting floats without trailing zeros
...sue of Decimal.normalize() can be adjusted to what is needed using context settings, but considering the already slow speed and not needing ridiculous precision and the fact that I'd still be converting from a float and losing precision anyway, I didn't think it was worth pursuing.
I'm not concerne...
Iterating each character in a string using Python
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As Johannes pointed out,
for c in "string":
#do something with c
You can iterate pretty much anything in python using the for loop construct,
for example, open("file.txt") returns a file object (and opens the file), iterating over it iterates...