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Wait for a void async method
...ode and decompiled it to see what is actually going on.
static async void Test()
{
await Task.Delay(5000);
}
static async Task TestAsync()
{
await Task.Delay(5000);
}
Turns into (edit: I know that the body code is not here but in the statemachines, but the statemachines was basically ide...
In Django, how do I check if a user is in a certain group?
...']).exists()
Note that those functions can be used with the @user_passes_test decorator to manage access to your views :
from django.contrib.auth.decorators import login_required, user_passes_test
@login_required
@user_passes_test(is_member) # or @user_passes_test(is_in_multiple_groups)
def myvie...
What is __pycache__?
... hidden bytecode files.
On Windows the equivalent command might be (not tested, batch script welcome):
dir * /s/b | findstr __pycache__ | attrib +h +s +r
Which is same as going through the project hiding folders using right-click > hide...
Running unit tests is one scenario (more in comm...
Is there a way to change context to iframe in javascript console?
...
So as an example would be: window.frames[0].alert()
– Shayan
Dec 8 '19 at 15:58
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...
wkhtmltopdf: cannot connect to X server
...to see if it works: run
/usr/local/bin/wkhtmltopdf http://www.google.com test.pdf
If it works, then you are done. If you get the error "Cannot connect to X server" then continue to number 7.
We need to run it headless on a 'virtual' x server. We will do this with a package called xvfb.
sudo ap...
How do I get a Cron like scheduler in Python? [closed]
... self.action(*self.args, **self.kwargs)
(Note: Not thoroughly tested)
Then your CronTab can be specified in normal python syntax as:
c = CronTab(
Event(perform_backup, 0, 2, dow=6 ),
Event(purge_temps, 0, range(9,18,2), dow=range(0,5))
)
This way you get the full power of Python...
Temporarily disable auto_now / auto_now_add
...
I've recently faced this situation while testing my application. I needed to "force" an expired timestamp. In my case I did the trick by using a queryset update. Like this:
# my model
class FooBar(models.Model):
title = models.CharField(max_length=255)
upda...
How do I analyze a program's core dump file with GDB when it has command-line parameters?
... -s core can be used to dump memory in bulk
Now for the full educational test setup:
main.c
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int myfunc(int i) {
*(int*)(NULL) = i; /* line 7 */
return i - 1;
}
int main(int argc, char...
Git cherry pick vs rebase
...g toy repository:
$ git log --graph --decorate --all --oneline
* 558be99 (test_branch_1) Test commit #7
* 21883bb Test commit #6
| * 7254931 (HEAD -> master) Test commit #5
| * 79fd6cb Test commit #4
| * 48c9b78 Test commit #3
| * da8a50f Test commit #2
|/
* f2fa606 Test commit #1
Say, we have...
Getting the first character of a string with $str[0]
...ey send you, from type to type[] for example, and then send 'Control' and 'Test' as the data for this array, $_POST['type'][0] will now return Control rather than C whereas substr($_POST['type'], 0, 1) will simply just fail.
So yes, there may be a problem with using $str[0], but that depends on the...