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How to find out if you're using HTTPS without $_SERVER['HTTPS']
I've seen many tutorials online that says you need to check $_SERVER['HTTPS'] if the server is connection is secured with HTTPS. My problem is that on some of the servers I use, $_SERVER['HTTPS'] is an undefined variable that results in an error. Is there another variable I can check that should...
How to list all functions in a Python module?
...n example with inspect:
from inspect import getmembers, isfunction
from my_project import my_module
functions_list = [o for o in getmembers(my_module) if isfunction(o[1])]
getmembers returns a list of (object_name, object_type) tuples.
You can replace isfunction with any of the other isXXX func...
How to convert JSON data into a Python object
...E
With Python3, you can do it in one line, using SimpleNamespace and object_hook:
import json
from types import SimpleNamespace
data = '{"name": "John Smith", "hometown": {"name": "New York", "id": 123}}'
# Parse JSON into an object with attributes corresponding to dict keys.
x = json.loads(data, ...
Append text to input field
...might want to write a function:
//Append text to input element
function jQ_append(id_of_input, text){
var input_id = '#'+id_of_input;
$(input_id).val($(input_id).val() + text);
}
After you can just call it:
jQ_append('my_input_id', 'add this text');
...
CoInitialize浅析一 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... push [ebp+8] ; pvReserved
769B2A2E call _CoInitializeEx@8 ; CoInitializeEx(x,x)
769B2A33 pop ebp
769B2A34 retn 4
可以看到，其中的实现还是比较简单的，它只是简单地调用了CoInitializeEx，将第二个...
Finding all cycles in a directed graph
...en if you wish you can generate combinations of simple cycles.
One of the baseline algorithms for finding all simple cycles in a directed graph is this: Do a depth-first traversal of all simple paths (those that do not cross themselves) in the graph. Every time when the current node has a successor...
Python: Best way to add to sys.path relative to the current running script
...single line to each file, add a import statement at top e.g.
import import_my_lib
keep import_my_lib.py in bin and import_my_lib can correctly set the python path to whatever lib you want
share
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How to work with complex numbers in C?
...a standard c99 type (under the hood on GCC, it is actually an alias to the _Complex type).
– Snaipe
Apr 12 '15 at 8:50
...
Where should signal handlers live in a django project?
...ke:
yourapp/signals/handlers.py:
from django.db.models.signals import pre_save
from django.dispatch import receiver
from myapp.models import MyModel
@receiver(pre_save, sender=MyModel)
def my_handler(sender, **kwargs):
pass
The best place to register your signal handler is then in the AppCo...
What's wrong with nullable columns in composite primary keys?
... word of caution: Having nullable foreign keys is not clean relational database design.
If there are two entities A and B where A can optionally be related to B, the clean solution is to create a resolution table (let's say AB). That table would link A with B: If there is a relationship then it wou...